Amorphous, I.e., Glassy Patents (Class 148/403)
  • Patent number: 9796053
    Abstract: Provided is a high-temperature lead-free solder alloy having excellent tensile strength and elongation in a high-temperature environment of 250° C. In order to make the structure of an Sn—Sb—Ag—Cu solder alloy finer and cause stress applied to the solder alloy to disperse, at least one material selected from the group consisting of, in mass %, 0.003 to 1.0% of Al, 0.01 to 0.2% of Fe, and 0.005 to 0.4% of Ti is added to a solder alloy containing 35 to 40% of Sb, 8 to 25% of Ag, and 5 to 10% of Cu, with the remainder made up by Sn.
    Type: Grant
    Filed: July 29, 2013
    Date of Patent: October 24, 2017
    Assignee: SENJU METAL INDUSTRY CO., LTD.
    Inventors: Rei Fujimaki, Minoru Ueshima
  • Patent number: 9790577
    Abstract: There is provided a Ti—Al-based alloy ingot having ductility at room temperature, in which the Ti—Al-based ingot has a lamellar structure in which ?2 phases and ? phases are arranged sequentially and regularly, and a thickness ratio ?/?2 of the ? phase to the ?2 phase is equal to or more than 2. There is also provided a Ti—Al-based alloy ingot having ductility at room temperature, in which the Ti—Al-based alloy ingot has a lamellar structure in which ?2 phases and ? phases are arranged sequentially and regularly, the ? phase has a thickness of 100 nm to 200 nm, and the ?2 phase has a thickness of 100 nm or less.
    Type: Grant
    Filed: November 27, 2013
    Date of Patent: October 17, 2017
    Assignee: KOREA INSTITUTE OF MACHINERY & MATERIALS
    Inventors: Seong Woong Kim, Seung Eon Kim, Young Sang Na, Jong Taek Yeom
  • Patent number: 9775501
    Abstract: An endoscope has an insertion portion inserted through a living body, an illumination fiber arranged at a distal end of the insertion portion and irradiates the living body with illumination light, a detection fiber which detects return light from the living body, an actuator which swings a free end of the illumination fiber, and a ferrule which has a through-hole based on a diameter of the illumination fiber and is arranged between the illumination fiber and the actuator. The actuator has an actuator arranged at a first side face of the ferrule and an actuator arranged at a second side face of the ferrule that is different from a face point-symmetric to the first side face with respect to an axial direction of the illumination fiber.
    Type: Grant
    Filed: March 11, 2014
    Date of Patent: October 3, 2017
    Assignee: OLYMPUS CORPORATION
    Inventors: Masahiro Yoshino, Tomoki Funakubo, Atsuyoshi Shimamoto, Yasunobu Iga, Mitsuru Namiki
  • Patent number: 9745641
    Abstract: An apparatus and method of uniformly heating, rheologically softening, and thermoplastically forming metallic glasses rapidly into a net shape using a rapid capacitor discharge forming (RCDF) tool are provided. The RCDF method utilizes the discharge of electrical energy stored in a capacitor to uniformly and rapidly heat a sample or charge of metallic glass alloy to a predetermined “process temperature” between the glass transition temperature of the amorphous material and the equilibrium melting point of the alloy in a time scale of several milliseconds or less. Once the sample is uniformly heated such that the entire sample block has a sufficiently low process viscosity it may be shaped into high quality amorphous bulk articles via any number of techniques including, for example, injection molding, dynamic forging, stamp forging, and blow molding in a time frame of Less than 1 second.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: August 29, 2017
    Assignee: California Institute of Technology
    Inventors: William L. Johnson, Marios D. Demetriou, Choong Paul Kim, Joseph P. Schramm
  • Patent number: 9725796
    Abstract: Exemplary embodiments described herein relate to methods and apparatus for forming a coating layer at least partially on surface of a BMG article formed of bulk solidifying amorphous alloys. In embodiments, the coating layer may be formed in situ during formation of a BMG article and/or post formation of a BMG article. The coating layer may provide the BMG article with surface hardness, wear resistance, surface activity, corrosion resistance, etc.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: August 8, 2017
    Assignees: Apple Inc., Crucible Intellectual Property, LLC
    Inventors: Theodore A. Waniuk, Joseph Stevick, Sean O'Keeffe, Dermot J. Stratton, Joseph C. Poole, Matthew S. Scott, Christopher D. Prest
  • Patent number: 9725790
    Abstract: Calcium is added to an aluminum-scandium alloy to produce an aluminum-scandium-calcium alloy by combining aluminum, scandium, and the calcium in a melt, where the common melt is then quenched at a high velocity.
    Type: Grant
    Filed: November 30, 2011
    Date of Patent: August 8, 2017
    Assignee: Airbus Defence and Space GmbH
    Inventor: Frank Palm
  • Patent number: 9631267
    Abstract: A method and device for making metallic glass includes a first step of preparing metal or alloy; a second step of melting metal or alloy into liquid metal; a third step of putting the liquid metal into a boiler and applying pressure into the boiler and the liquid metal being ejected into lines from an outlet located a the lower portion of the boiler; a fourth step of cooling the lines as ejected from the outlet of the boiler in a cooling tank by a quick-flowing coolant; a fifth step of forming straight metallic glass fibers and allowing the metallic glass fibers to be settled to the bottom of the cooling tank; a sixth step of weaving the metallic glass fibers into pieces, and a seventh step of overlapping the pieces into a metallic glass. The lower portion of the boiler is located at a lower level than a surface of the coolant as quickly flowing in the cooling tank.
    Type: Grant
    Filed: January 28, 2014
    Date of Patent: April 25, 2017
    Inventor: Kuan Wei Chen
  • Patent number: 9616495
    Abstract: An amorphous and a manufacturing method thereof are provided. The amorphous alloy may have a formula of ZraCubAlcMdNe, M is at least one selected from the group consisting of Ni, Fe, Co, Mn, Cr, Ti, Hf, Ta, Nb and rare earth elements; N is at least one selected from a group consisting of Ca, Mg, and C; 40?a?70, 15?b?35, 5?c?15, 5?d?15, 0?e?2, and a+b+c+d+e=100.
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: April 11, 2017
    Assignee: SHENZHEN BYD AUTO R&D COMPANY LIMITED
    Inventors: Qing Gong, Faliang Zhang, Yunchun Li
  • Patent number: 9524848
    Abstract: A method of producing field emitters having improved brightness and durability relying on the creation of a liquid Taylor cone from electrically conductive materials having high melting points. The method calls for melting the end of a wire substrate with a focused laser beam, while imposing a high positive potential on the material. The resulting molten Taylor cone is subsequently rapidly quenched by cessation of the laser power. Rapid quenching is facilitated in large part by radiative cooling, resulting in structures having characteristics closely matching that of the original liquid Taylor cone. Frozen Taylor cones thus obtained yield desirable tip end forms for field emission sources in electron beam applications. Regeneration of the frozen Taylor cones in-situ is readily accomplished by repeating the initial formation procedures. The high temperature liquid Taylor cones can also be employed as bright ion sources with chemical elements previously considered impractical to implement.
    Type: Grant
    Filed: November 7, 2014
    Date of Patent: December 20, 2016
    Inventor: Gregory Hirsch
  • Patent number: 9506133
    Abstract: A bulk metallic glass forming alloy having the following composition x(aZr bHf cM dNb eO) yCu zAI and its preparation from an alloy L=(aZr bHf cM dNb eO), Cu, and Al as well as the use thereof is described.
    Type: Grant
    Filed: November 22, 2012
    Date of Patent: November 29, 2016
    Assignee: UNIVERSITAT DES SAARLANDES
    Inventors: Jochen Heinrich, Ralf Busch
  • Patent number: 9499891
    Abstract: A class of alloys is provided that form metallic glass upon cooling below the glass transition temperature Tg at a rate below 100° K/sec. The alloys have a high value of temperature difference (DT) between the crystallization temperature (Tx) and the glass transition temperature (Tg) of the intermetallic alloy. Such alloys comprise zirconium in the range of 70 to 80 weight percent, beryllium in the range of 0.8 to 5 weight percent, copper in the range of 1 to 15 weight percent, nickel in the range of 1 to 15 weight percent, aluminum in the range of 1 to 5 weight percent and niobium in the range of 0.5 to 3 weight percent, or narrower ranges depending on other alloying elements and the critical cooling rate and value of DT desired. Furthermore, methods are provided for making such metallic glasses.
    Type: Grant
    Filed: August 23, 2013
    Date of Patent: November 22, 2016
    Assignees: Heraeus Deutschland GmbH & Co. KG, Heraeus Materials Technology North America LLC
    Inventors: Hans Jürgen Wachter, Frank Krüger, Bernd Kunkel, Xiaoyun Wang, Doug Shearer
  • Patent number: 9365916
    Abstract: An alloy comprising Fe, Ni, P, B and Ge is disclosed, having a composition according to the formula [Fe1-yNiy](100-a-b-c)PaBbGec, where a, b, c subscripts denote atomic percent; y subscript denotes atomic fraction, a is between 9 and 12, b is between 5.5 and 7.5, c is between 2 and 6, and y is between 0.45 and 0.55. Metallic glass rods with diameter of at least 1 mm can be formed from the alloy by rapid quenching from the molten state.
    Type: Grant
    Filed: November 12, 2013
    Date of Patent: June 14, 2016
    Assignee: Glassimetal Technology, Inc.
    Inventors: Michael Floyd, Jong Hyun Na, Marios D. Demetriou, William L. Johnson, Glenn Garrett
  • Patent number: 9347123
    Abstract: The quasicrystal phase and/or quasicrystal-like phase particles, which is composed of the Mg—Zn—Al, are dispersed into Mg-base alloy material for strain working. The microstructure in this material does not include the dendrite structure, and the size of the magnesium matrix is 40 ?m or less than 40 ?m. The present invention shows that the quasicrystal phase and/or quasicrystal-like phase is able to form by addition of the Zn and Al elements except for the use of rare earth elements. In addition, the excellent trade-off-balancing between strength and ductility and reduction of the yield anisotropy, which are the serious issues for the wrought processed magnesium alloys, is able to obtain by the microstructure controls before the strain working process.
    Type: Grant
    Filed: January 19, 2010
    Date of Patent: May 24, 2016
    Assignee: NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Hidetoshi Somekawa, Yoshiaki Osawa, Alok Singh, Toshiji Mukai
  • Patent number: 9343748
    Abstract: A class of materials has advantageous utility in electrocatalytic applications, e.g., fuel cells. The materials circumvent conventional Pt-based anode poisoning and the agglomeration/dissolution of supported catalysts during long-term operation by exploiting the unique physical and chemical properties of bulk metallic glass to create nanowires for electrocatalytic applications, e.g., fuel cell and battery applications. These amorphous metals can achieve unusual geometries and shapes along multiple length scales. The absence of crystallites, grain boundaries and dislocations in the amorphous structure of bulk metallic glasses results in a homogeneous and isotropic material down to the atomic scale, which displays very high strength, hardness, elastic strain limit and corrosion resistance. The melting temperatures of the disclosed bulk metallic glasses are much lower than the estimated melting temperatures based on interpolation of the alloy constituents making them attractive as highly malleable materials.
    Type: Grant
    Filed: August 8, 2011
    Date of Patent: May 17, 2016
    Assignee: Yale University
    Inventors: Andre D. Taylor, Jan Schroers
  • Patent number: 9334560
    Abstract: A cutting tool having a metallic glass thin film (MGTF) coated thereon, a metallic glass cutting tool, and methods of fabricating the same are disclosed. The cutting tool having metallic glass thin film coated thereon comprises: a cutting element having a sharpened portion, and the cutting element is made of metal; and a metallic glass thin film coated on the cutting element, and the metallic glass is represented by the following formula 1 or formula 2, (ZraCubNicAld)100-xSix,??[formula 1] wherein 45=<a=<75, 25=<b=<35, 5=<c=<15, 5=<d=<15, 0.1=<x=<10, (ZreCufAggAlh)100-ySiy,??[formula 2] 35=<e=<55, 35=<f=<55, 5=<g=<15, 5=<h=<15, 0.1=<y=<10. The metallic glass cutting tool of the present invention comprises: a cutting element having a sharpened portion, and the cutting element is made of a metallic glass represented by the above formula 1 or formula 2.
    Type: Grant
    Filed: September 6, 2012
    Date of Patent: May 10, 2016
    Assignee: National Central University
    Inventors: Jason Shiang Ching Jang, Pei Hua Tsai, Jia Bin Li, Yu Ze Lin, Chih Chiang Fu, Jinn P. Chu
  • Patent number: 9334553
    Abstract: Various embodiments of zirconium based bulk metallic glass are described herein. In one embodiment, an alloy composition includes zirconium (Zr), copper (Cu), aluminum (Al), at least one element from a group consisting of niobium (Nb) and titanium (Ti), and at least one element from a group consisting of nickel (Ni), iron (Fe), and cobalt (Co).
    Type: Grant
    Filed: March 20, 2013
    Date of Patent: May 10, 2016
    Assignee: Washington State University
    Inventors: Atakan Peker, Dongchun Qiao
  • Patent number: 9327481
    Abstract: A method of producing a first part having at least one surface, formed of a first material. The first part includes at least one coating on the at least one surface. The production method includes: a) taking a second part including a cavity forming the negative of the first part; b) depositing the coating, including at least a first layer, onto the second part; c) taking a first metallic material, chosen for its ability to become at least partially amorphous; d) shaping the first material in the cavity of the second part so as to secure the coating to the at least one surface of the first part, the first material having been subject to a treatment allowing it to become at least partially amorphous, at the latest at the time of the shaping operation; e) separating the first part from the second part so as to obtain the first part coated with the coating.
    Type: Grant
    Filed: June 1, 2011
    Date of Patent: May 3, 2016
    Assignee: The Swatch Group Research and Development Ltd.
    Inventors: Yves Winkler, Jean-Francois Dionne, Stewes Bourban, Alban Dubach, Yann Fallet
  • Patent number: 9328404
    Abstract: A method according to one embodiment includes combining an amorphous iron-based alloy and at least one metal selected from a group consisting of molybdenum, chromium, tungsten, boron, gadolinium, nickel phosphorous, yttrium, and alloys thereof to form a mixture, wherein the at least one metal is present in the mixture from about 5 atomic percent (at %) to about 55 at %; and ball milling the mixture at least until an amorphous alloy of the iron-based alloy and the at least one metal is formed. Several amorphous iron-based metal alloys are also presented, including corrosion-resistant amorphous iron-based metal alloys and radiation-shielding amorphous iron-based metal alloys.
    Type: Grant
    Filed: April 20, 2009
    Date of Patent: May 3, 2016
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Cheng Kiong Saw, William A. Bauer, Jor-Shan Choi, Dan Day, Joseph C. Farmer
  • Patent number: 9222159
    Abstract: A method of forming bulk metallic glass engineering materials, and more particularly a method for forming coarsening microstructures within said engineering materials is provided. Specifically, the method forms ‘designed composites’ by introducing ‘soft’ elastic/plastic inhomogeneities in a metallic glass matrix to initiate local shear banding around the inhomogeneity, and matching of microstructural length scales (for example, L and S) to the characteristic length scale RP (for plastic shielding of an opening crack tip) to limit shear band extension, suppress shear band opening, and avoid crack development.
    Type: Grant
    Filed: December 29, 2010
    Date of Patent: December 29, 2015
    Assignee: California Institute of Technology
    Inventors: Douglas C. Hofmann, William C. Johnson
  • Patent number: 9222157
    Abstract: Provided is an iron-based amorphous alloy and a method of manufacturing the same. More particularly, provided is an high carbon iron-based amorphous alloy expressed by a general formula Fe?C?Si?BxPyCrz, wherein ?, ?, ?, x, y and z are atomic % of iron (Fe), carbon (C), silicon (Si), boron (B), phosphorus (P), and chrome (Cr) respectively, wherein ? is expressed by ?=100?(?+?+x+y+z) atomic %, ? is expressed by 13.5 atomic %???17.8 atomic %, ? is expressed by 0.30 atomic %???1.50 atomic %, x is expressed by 0.1 atomic %?x?4.0 atomic %, y is expressed by 0.8 atomic %?y?7.7 atomic %, and z is expressed by 0.1 atomic %?z?3.0 atomic %.
    Type: Grant
    Filed: June 27, 2011
    Date of Patent: December 29, 2015
    Assignees: POSCO, RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY
    Inventors: Sang-Won Kim, Gab-Sik Byun, Young-Geun Son, Eon-Byeong Park, Sang-Hoon Yoon, Sang-Wook Ha, Oh-Joon Kwon, Seung-Dueg Choi, Seong Hoon Yi
  • Patent number: 9142830
    Abstract: A composite of silicon and tin is prepared as a negative electrode composition with increased lithium insertion capacity and durability for use with a metal current collector in cells of a lithium-ion battery. This electrode material is formed such that the silicon is present as a distinct amorphous phase in a matrix phase of crystalline tin. While the tin phase provides electron conductivity, both phases accommodate the insertion and extraction of lithium in the operation of the cell and both phases interact in minimizing mechanical damage to the material as the cell experiences repeated charge and discharge cycles. In general, roughly equal atomic proportions of the tin and silicon are used in forming the phase separated composite electrode material.
    Type: Grant
    Filed: September 16, 2011
    Date of Patent: September 22, 2015
    Assignee: GM Global Technology Operations LLC
    Inventors: Xingcheng Xiao, Anil K. Sachdev, Mark W. Verbrugge, Ping Liu, John S Wang
  • Patent number: 9103009
    Abstract: Disclosed herein are methods of combining at least one bulk-solidifying amorphous alloy and at least one additional metal or alloy of a metal to provide a composite preform. The composite preform then is heated to produce an alloy of the bulk-solidifying amorphous alloy and the at least one additional metal or alloy of the metal.
    Type: Grant
    Filed: July 4, 2012
    Date of Patent: August 11, 2015
    Assignee: Apple Inc.
    Inventors: Christopher D. Prest, Joseph C. Poole, Matthew S. Scott, Dermot J. Stratton
  • Patent number: 9096792
    Abstract: A luminescent element including nitride includes a luminescent film and a metal layer with a metal microstructure formed on a surface of the luminescent film; wherein the luminescent film has a chemical composition: Ga1-xAlxN:yRe, wherein Re represents the rare earth element, 0?x?1, 0<y?0.2. A preparation method of a luminescent element including nitride and a luminescence method are also provided. The metal layer is formed on the surface of the luminescent film, and the luminescent element including nitride has simple structure, good luminescence homogeneity, high luminescence efficiency, and good luminescence stability.
    Type: Grant
    Filed: August 26, 2009
    Date of Patent: August 4, 2015
    Assignee: Ocean's King Lighting Science & Technology CO., LTD.
    Inventors: Mingjie Zhou, Wenbo Ma, Jing Tang
  • Patent number: 9085814
    Abstract: Ni-based Cr- and P-bearing alloys that can from centimeter-thick amorphous articles are provided. Within the family of alloys, millimeter-thick bulk-glassy articles can undergo macroscopic plastic bending under load without fracturing catastrophically.
    Type: Grant
    Filed: August 22, 2012
    Date of Patent: July 21, 2015
    Assignee: California Institute of Technology
    Inventors: Jong Hyun Na, Marios D. Demetriou, William L. Johnson, Glenn Garrett
  • Patent number: 9051630
    Abstract: Amorphous steel composites with enhanced mechanical properties and related methods for toughening amorphous steel alloys. The composites are formed from monolithic amorphous steel and hard ceramic particulates, which must be embedded in the glass matrix through melting at a temperature above the melting point for the steel but below the melting point for the ceramic. The ceramics may be carbides, nitrides, borides, iron-refractory carbides, or iron-refractory borides. An optical micrograph of such a composite including niobium carbide particulates is shown in FIG. 2A. The produced composites may be one of two types, primarily distinguished by the methods for embedding the ceramic particulates in the steel. These methods may be applied to a variety of amorphous steels as well as other non-ferrous amorphous metals, and the resulting composites can be used in various applications and utilizations.
    Type: Grant
    Filed: February 23, 2006
    Date of Patent: June 9, 2015
    Assignee: University of Virginia Patent Foundation
    Inventors: S. Joseph Poon, Gary J. Shiflet, Xiao-Jun Gu
  • Publication number: 20150129089
    Abstract: A hydrogen-free amorphous dielectric insulating film having a high material density and a low density of tunneling states is provided. The film is prepared by e-beam deposition of a dielectric material on a substrate having a high substrate temperature Tsub under high vacuum and at a low deposition rate. In an exemplary embodiment, the film is amorphous silicon having a density greater than about 2.18 g/cm3 and a hydrogen content of less than about 0.1%, prepared by e-beam deposition at a rate of about 0.1 nm/sec on a substrate having Tsub=400° C. under a vacuum pressure of 1×10?8 Torr.
    Type: Application
    Filed: November 12, 2014
    Publication date: May 14, 2015
    Applicant: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Xiao Liu, Daniel R. Queen, Frances Hellman
  • Patent number: 9005376
    Abstract: Alloys and methods for preparing the same are provided. The alloys are represented by the general formula of (ZraAlbCucNid)100-e-fYeMf, wherein a, b, c, and d are atomic fractions, in which: 0.472?a?0.568; 0.09?b?0.11; 0.27?c?0.33; 0.072?d?0.088; the sum of a, b, c, and d equals 1; e and f are atomic numbers of elements Y and M respectively, in which 0?e?5 and 0.01?f?5; and M is selected from the group consisting of Nb, Ta, Sc, and combinations thereof.
    Type: Grant
    Filed: November 30, 2011
    Date of Patent: April 14, 2015
    Assignee: BYD Company Limited
    Inventors: Qing Gong, Faliang Zhang, Yongxi Jian
  • Publication number: 20150096652
    Abstract: Ni—Fe—Si—B and Ni—Fe—Si—B—P metallic glass forming alloys and metallic glasses are provided. Metallic glass rods with diameters of at least one, up to three millimeters, or more can be formed from the disclosed alloys. The disclosed metallic glasses demonstrate high yield strength combined with high corrosion resistance, while for a relatively high Fe contents the metallic glasses are ferromagnetic.
    Type: Application
    Filed: January 7, 2014
    Publication date: April 9, 2015
    Applicant: Glassimetal Technology, Inc.
    Inventors: Jong Hyun Na, Michael Floyd, Marios D. Demetriou, William L. Johnson, Glenn Garrett, Maximilien Launey
  • Patent number: 8986469
    Abstract: Design and fabrication processes and compositions for bulk metallic glass materials. Examples of bulk metallic glasses based on the described compositions may contain a high atomic percent of titanium or iron, which is alloyed with metalloid elements and refractory metals. The compositions can be designed using theoretical calculations of the liquidus temperature to have substantial amounts of refractory metals, while still maintaining a depressed liquidus temperature. The alloying elements are molybdenum, tungsten, chromium, boron, and carbon may be used. Some of the resulting alloys are ferromagnetic at room temperature, while others are non-ferromagnetic. These amorphous alloys have increased specific strengths and corrosion resistance compared to conventional high strength steels.
    Type: Grant
    Filed: November 10, 2008
    Date of Patent: March 24, 2015
    Assignee: The Regents of the University of California
    Inventors: Kenneth S. Vecchio, Justin Cheney, Hesham Khalifa
  • Patent number: 8986472
    Abstract: The present invention is directed at metal alloys that are capable of forming spinodal glass matrix microconstituent structure. The alloys are iron based and include nickel, boron, silicon and optionally chromium. The alloys exhibit ductility and relatively high tensile strengths and may be in the form of sheet, ribbon, wire, and/or fiber. Applications for such alloys are described.
    Type: Grant
    Filed: November 2, 2011
    Date of Patent: March 24, 2015
    Assignee: The NanoSteel Company, Inc.
    Inventors: Daniel James Branagan, Brian E. Meacham, Jason K. Walleser, Alla V. Sergueeva, Andrew T. Ball, Grant G. Justice
  • Publication number: 20150068648
    Abstract: In one embodiment, the invention provides a process for thermoplastic forming of a metallic glass. For example, in one embodiment, the invention provides a process for thermoplastic forming of a metallic glass ribbons having a thickness of between about 50 to about 200 microns. Related articles of manufacture and processes for customizing articles in accordance with the process as described herein are also provided.
    Type: Application
    Filed: March 15, 2013
    Publication date: March 12, 2015
    Inventors: Jan Schroers, Thomas M. Hodges, Michael Kanik, Punnathal Bordeenithikasem
  • Publication number: 20150053313
    Abstract: A class of alloys is provided that form metallic glass upon cooling below the glass transition temperature Tg at a rate below 100° K/sec. The alloys have a high value of temperature difference (DT) between the crystallization temperature (Tx) and the glass transition temperature (Tg) of the intermetallic alloy. Such alloys comprise zirconium in the range of 70 to 80 weight percent, beryllium in the range of 0.8 to 5 weight percent, copper in the range of 1 to 15 weight percent, nickel in the range of 1 to 15 weight percent, aluminum in the range of 1 to 5 weight percent and niobium in the range of 0.5 to 3 weight percent, or narrower ranges depending on other alloying elements and the critical cooling rate and value of DT desired. Furthermore, methods are provided for making such metallic glasses.
    Type: Application
    Filed: August 23, 2013
    Publication date: February 26, 2015
    Inventors: Hans Jürgen WACHTER, Frank KRÜGER, Bernd KUNKEL, Xiaoyun WANG, Doug SHEARER
  • Publication number: 20150053312
    Abstract: The present invention relates to a metallic glass film for medical application, which is an amorphous thin film metallic glass (TFMG) formed for covering the surface of a substrate (for example, a medical cutting instrument), so as to increase the wear resistance and the sharpness of the substrate, decrease the surface roughness of the substrate, protect the edge of the substrate from curl and chipping crack. In the present invention, the TFMG is a zirconium-based thin film metallic glass constituted by Zr material, Cu material, Al material, and Ta material with the atom percent of 53 at %, 33 at %, 9 at %, 5 at %, respectively. Moreover, the TFMG can also be constituted by Cu material, Zr material, Al material, and Ti material, and the atom percent of the Cu material, the Zr material, the Al material, and the Ti material are 48 at %, 42 at %, 6 at %, 4 at %, respectively.
    Type: Application
    Filed: August 23, 2013
    Publication date: February 26, 2015
    Inventor: Jinn Chu
  • Publication number: 20150050181
    Abstract: A fluxing method is disclosed by which the melt of aluminum-contaminated Ni-based glass-forming alloys is fluxed using a fluxing agent based on boron and oxygen in order to reverse the adverse effects of aluminum impurities on the glass-forming ability and toughness.
    Type: Application
    Filed: August 12, 2014
    Publication date: February 19, 2015
    Inventors: Jong Hyun Na, Michael Floyd, Danielle Duggins, David S. Lee, Marios D. Demetriou, William L. Johnson
  • Publication number: 20150047755
    Abstract: The present disclosure is directed to Ni—P—B alloys and glasses containing small fractions of Nb and Ta and optionally Mn. Over a specific range, the alloys are capable of forming bulk metallic glasses having critical casting thickness in excess of 1 mm. In one embodiment, compositions with a Mn content of between 3 and 4 atomic percent, Nb content of about 3 atomic percent, B content of about 3 atomic percent, and P content of about 16.5 atomic percent, where the balance in Ni, were capable of forming bulk metallic glass rods with diameters as large as 5 mm or larger. In another embodiment, Ni-based compositions with a Mn content of between 5 and 7 atomic percent, Ta content of between 1 and 2 atomic percent, B content of about 3 atomic percent, and P content of about 16.5 atomic percent, where the balance in Ni, were capable of forming bulk metallic glass rods with diameters as large as 5 mm or larger.
    Type: Application
    Filed: August 12, 2014
    Publication date: February 19, 2015
    Inventors: Jong Hyun Na, Danielle Duggins, Michael Floyd, Glenn Garrett, Maximilien Launey, Marios D. Demetriou, William L. Johnson
  • Patent number: 8951368
    Abstract: Disclosed are amorphous, ductile brazing foils with a composition consisting essentially of FeRestNiaCrbSicBdPe, wherein 0 atomic %?a<25 atomic %; 0 atomic %?b?15 atomic %; 1 atomic %?c?10 atomic %; 4 atomic %?d?15 atomic %; 1 atomic %?e?9 atomic %; any impurities?0.5 atomic %; rest Fe, wherein 2 atomic %?c+e?10 atomic % and 15 atomic %?c+d+e?22 atomic %, or consisting essentially of FeRestNiaCrbMofCugSicBdPe, wherein 0 atomic %?a<25 atomic %; 0 atomic %?b?15 atomic %; 1 atomic %<c?10 atomic %; 4 atomic %?d?15 atomic %; 1 atomic %?e?9 atomic %; 0 atomic %<f?3 atomic %; 0 atomic %?g?3 atomic %; any impurities?0.5 atomic %; rest Fe, wherein 2 atomic %?c+e?10 atomic % and 15 atomic %?c+d+e?22 atomic %. Also disclosed are brazed objects formed using these foils, particularly exhaust gas recirculation coolers and oil coolers, and methods for making the brazing foils and for making the brazed parts.
    Type: Grant
    Filed: September 21, 2011
    Date of Patent: February 10, 2015
    Assignee: Vacuumschmelze GmbH & Co. KG
    Inventors: Thomas Hartmann, Dieter Nuetzel
  • Publication number: 20150034213
    Abstract: Bulk solidifying amorphous alloys exhibiting improved processing and mechanical properties and methods of forming these alloys are provided. The bulk solidifying amorphous alloys are composed to have high Poisson's ratio values. Exemplary Pt-based bulk solidifying amorphous alloys having such high Poisson's ratio values are also described. The Pt-based alloys are based on Pt—Ni—Co—Cu—P alloys, and the mechanical properties of one exemplary alloy having a composition of substantially Pt57.5Cu14.7Ni5.3P22.5 are also described.
    Type: Application
    Filed: September 8, 2014
    Publication date: February 5, 2015
    Inventors: William Johnson, Jan Schroers
  • Publication number: 20150027592
    Abstract: The invention provides a method of producing an amorphous alloy ribbon, the method including a step of producing an amorphous alloy ribbon by discharging a molten alloy through a rectangular opening of a molten metal nozzle having a molten metal flow channel along which the molten alloy flows, the opening being an end of the molten metal flow channel, onto a surface of a rotating chill roll, in which, among wall surfaces of the molten metal flow channel, a maximum height Rz(t) of a surface t, which is a wall surface parallel to a flow direction of the molten alloy and to a short side direction of the opening, is 10.5 ?m or less.
    Type: Application
    Filed: March 7, 2013
    Publication date: January 29, 2015
    Applicant: HITACHI METALS, LTD.
    Inventors: Hiroshi Shibasaki, Takayuki Motegi, Hajime Itagaki, Jun Sunakawa, Yoshio Bizen
  • Publication number: 20150023827
    Abstract: The present invention relates to a porous amorphous alloy artificial joint and a manufacturing method thereof The porous amorphous alloy artificial joint is formed of at least one of amorphous alloy compounds represented by Formula 1 to Formula 4 as described in the present specification.
    Type: Application
    Filed: January 24, 2014
    Publication date: January 22, 2015
    Applicant: National Central University
    Inventors: Shiang Ching JANG, Chih-Ching HUANG, Jia Bin LI, Hung Cheng LIN
  • Publication number: 20150020929
    Abstract: The present disclosure provides specified ranges in the Fe—Mo—Ni—Cr—P—C—B alloys such that the alloys are capable of forming bulk glasses having unexpectedly high glass-forming ability. The critical rod diameter of the disclosed alloys is at least 10 mm.
    Type: Application
    Filed: July 18, 2014
    Publication date: January 22, 2015
    Inventors: Jong Hyun Na, Michael Floyd, Glenn Garrett, Marios D. Demetriou, William L. Johnson
  • Publication number: 20150004431
    Abstract: The present invention relates to an anti-corrosion film, a metal substrate with an anti-corrosion layer and a manufacturing method thereof. The anti-corrosion film is at least one selected from the group consisting of: a Zr-based metallic glass film formed of Formula 1, a Zr—Cu-based metallic glass film formed of Formula 2, and a Ti-based metallic glass film formed of Formula 3, Formula 4 or Formula 5, wherein Formula 1 to Formula 5 are as described in the specification.
    Type: Application
    Filed: March 7, 2014
    Publication date: January 1, 2015
    Applicant: National Central University
    Inventors: Chung-Jen TSENG, Shian-Ching JANG, Tein-Chun CHENG, Pei-Jung WU, Hung-Cheng LIN, Pei Hua TSAI
  • Patent number: 8911568
    Abstract: The invention is directed to Pd-based metallic glass alloys useful in biomedical applications having no Ni or Cu. Exemplary metallic glass alloys are represented by AaBb{(Si)100-c(D)c}d, where A may be selected from Pd, and combinations of Pd and Pt, B may be selected from Ag, Au, Co, Fe, and combinations thereof, and D may be selected from P, Ge, B, S. Also, a, b, c and d are atomic percentages, and a ranges from about 60 to about 90, b ranges from about 2 to about 18, d ranges from about 5 to about 25, and c is greater than 0 and less than 100.
    Type: Grant
    Filed: December 15, 2011
    Date of Patent: December 16, 2014
    Assignee: California Institute of Technology
    Inventors: Marios D. Demetriou, William L. Johnson
  • Patent number: 8911572
    Abstract: A family of iron-based, phosphor-containing bulk metallic glasses having excellent processability and toughness, methods for forming such alloys, and processes for manufacturing articles therefrom are provided. The inventive iron-based alloy is based on the observation that by very tightly controlling the composition of the metalloid moiety of the Fe-based, P-containing bulk metallic glass alloys it is possible to obtain highly processable alloys with surprisingly low shear modulus and high toughness. Further, by incorporating small fractions of silicon (Si) and cobalt (Co) into the Fe—Ni—Mo—P—C—B system, alloys of 3 and 4 mm have been synthesized with high saturation magnetization and low switching losses.
    Type: Grant
    Filed: September 27, 2011
    Date of Patent: December 16, 2014
    Assignee: California Institute of Technology
    Inventors: Samuel T. Kim, Marios D. Demetriou, William L. Johnson
  • Patent number: 8906172
    Abstract: The present disclosure discloses an amorphous alloy composite material comprises an amorphous and continuous matrix phase, and a plurality of equiaxed crystalline phases as reinforcing phases dispersed in the matrix phase. Oxygen content in the amorphous alloy composite material may be less than 2100 ppm. The present disclosure also discloses a method of preparing the same. With the equiaxed crystalline phases dispersed in the matrix phase, the plasticity of the amorphous alloy composite material may be improved considerably.
    Type: Grant
    Filed: May 11, 2010
    Date of Patent: December 9, 2014
    Assignee: BYD Company Limited
    Inventors: Qing Gong, Zhijun Ma, Jiangtao Qu, Zengyan Guo, Faliang Zhang
  • Publication number: 20140345919
    Abstract: A transparent conductor includes a metallic glass, and a method of manufacturing a transparent conductor includes: preparing a metallic glass or a mixture comprising the metallic glass; and firing the metallic glass or the mixture comprising the metallic glass at a predetermined temperature higher than a glass transition temperature of the metallic glass.
    Type: Application
    Filed: December 3, 2013
    Publication date: November 27, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Se Yun KIM, Eun Sung LEE, Keum Hwan PARK, Weon Ho SHIN, Suk Jun KIM, Jin Man PARK, Sang Soo JEE
  • Publication number: 20140345755
    Abstract: A Ni-based bulk metallic glass forming alloy is provided. The alloy includes Ni(100-a-b-c-d)CraNbbPcBd, where an atomic percent of chromium (Cr) a ranges from 3 to 13, an atomic percent of niobium (Nb) b is determined by x?y*a, where x ranges from 3.8 to 4.2 and y ranges from 0.11 to 0.14, an atomic percent of phosphorus (P) c ranges from 16.25 to 17, an atomic percent of boron (B) d ranges from 2.75 to 3.5, and the balance is nickel (Ni), and where the alloy is capable of forming a metallic glass object having a lateral dimension of at least 6 mm, where the metallic glass has a stress intensity factor at crack initiation when measured on a 3 mm diameter rod containing a notch with length between 1 and 2 mm and root radius between 0.1 and 0.15 mm, the stress intensity factor being at least 70 MPa m1/2.
    Type: Application
    Filed: October 30, 2013
    Publication date: November 27, 2014
    Applicant: Glassimetal Technology, Inc.
    Inventors: Jong Hyun Na, Michael Floyd, Marios D. Demetriou, William L. Johnson, Glenn Garrett, Maximilien Launey
  • Publication number: 20140345754
    Abstract: A method to form and to separate bulk solidifying amorphous alloy or composite containing amorphous alloy where the forming and separating takes place at a temperature around the glass transition temperature or within the super cooled liquid region are provided.
    Type: Application
    Filed: September 16, 2011
    Publication date: November 27, 2014
    Inventors: Tran Quoc Pham, Theodore Andrew Waniuk, Michael Blaine Deming, Sean Timothy O'Keeffe
  • Publication number: 20140346038
    Abstract: Provided are a crystalline alloy having significantly better thermal stability than an amorphous alloy as well as glass-forming ability, and a method of manufacturing the crystalline alloy. The present invention also provides an alloy sputtering target that is manufactured by using the crystalline alloy, and a method of manufacturing the alloy target. According to an aspect of the present invention, provided is a crystalline alloy having glass-forming ability which is formed of three or more elements having glass-forming ability, wherein the average grain size of the alloy is in a range of 0.1 ?m to 5 ?m and the alloy includes 5 at % to 20 at % of aluminum (Al), 15 at % to 40 at % of any one or more selected from copper (Cu) and nickel (Ni), and the remainder being zirconium (Zr).
    Type: Application
    Filed: December 4, 2012
    Publication date: November 27, 2014
    Inventors: Seung-Yong Shin, Kyoung-Il Moon, Ju-Hyun Sun, Chang-Hun Lee
  • Publication number: 20140332120
    Abstract: Ferrous metal alloys including Fe, Co and optionally Ni with metalloids Si, B and P are provided that are substantially close to the peak in glass forming ability and have a combination of both good glass formability and good ferromagnetic properties. In particular, Fe/Co-based compositions wherein the Co content is between 15 and 30 atomic percent and the metalloid content is between 22 and 24 atomic percent at a well-defined metalloid moiety, have been shown to be capable of forming bulk glassy rods with diameters as large as 4 mm or larger. In addition, incorporating a small content of Ni under 10 atomic percent and additions of Mo, Cr, Nb, Ge, or C at an incidental impurity level of up to 2 atomic percent are not expected to impair the bulk-glass-forming ability of the present alloys.
    Type: Application
    Filed: May 7, 2014
    Publication date: November 13, 2014
    Applicant: California Institute of Technology
    Inventors: Xiao Liu, Marios D. Demetriou, William L. Johnson, Michael Floyd
  • Publication number: 20140328714
    Abstract: One embodiment provides a method of making an alloy feedstock, comprising: forming a first composition by combining Fe with a first nonmetal element; forming a second composition by combining Fe with a plurality of transition metal elements; forming a third composition by combining the second composition with a second nonmetal element; and combining the first composition with the third composition to form an alloy feedstock.
    Type: Application
    Filed: November 21, 2011
    Publication date: November 6, 2014
    Applicant: Crucible Intellectual Property, LLC
    Inventors: Theodore Andrew Waniuk, Quoc Tran Pham