Amorphous, I.e., Glassy Patents (Class 148/403)
  • Patent number: 7628871
    Abstract: High strength, reliable bulk metallic glass (BMG) solder materials formed from alloys possessing deep eutectics with asymmetric liquidous slopes. BMG solder materials are stronger and have a higher elastic modulus than, and therefore are less likely than crystalline solder materials to damage fragile low k interlayer dielectric (ILD) materials due to thermal stress in materials with different coefficients of thermal expansion (CTE). BMG solder materials may physically, electrically, or thermally couple a feature to another feature, or any combination thereof. For example, in an embodiment of the invention, a BMG solder material may physically and electrically couple an electronic component to a printed circuit board. In another embodiment of the invention, a BMG solder material may physically and thermally couple an integrated heat sink to a semiconductor device.
    Type: Grant
    Filed: August 12, 2005
    Date of Patent: December 8, 2009
    Assignee: Intel Corporation
    Inventor: Daewoong Suh
  • Publication number: 20090288741
    Abstract: In one aspect, an amorphous alloy comprises Cu, Zr, Be and M. M is at least one element selected from a group consisting of Al, Sn, Si, group IB, group IIB, group IIIB, group IVB, group VB, group VIB, group VIIB and group VIIIB of the element periodic table, provided that the element is not Cu or Zr. In another aspect, an amorphous alloy comprises Cu, Zr, RE and M. RE is at least one element selected from the rare earth elements, M is at least one element selected from a group consisting of Al, Sn, Si, group IB, group IIB, group IIIB, group IVB, group VB, group VIB, group VIIB and group VIIIB of the element periodic table, provided that the element is not Cu, Zr or RE. In yet another aspect, a method for preparing an amorphous alloy comprises melting a raw material comprising Cu, Zr, Be, and M to form an alloy.
    Type: Application
    Filed: March 18, 2009
    Publication date: November 26, 2009
    Inventors: Faliang Zhang, Kuan Gao, Kun Lu, Bitao Pan, Qing Gong, Hailin Chen
  • Patent number: 7621314
    Abstract: Metallic foams comprising high viscosity materials and apparatuses and methods of manufacturing such foams, and more particularly methods for controllably manufacturing metallic foams from bulk-solidifying amorphous alloys are provided.
    Type: Grant
    Filed: January 20, 2004
    Date of Patent: November 24, 2009
    Assignee: California Institute of Technology
    Inventors: Jan Schroers, William L. Johnson, Christopher Thomas Veazey, Marios D. Demetriou
  • Patent number: 7622011
    Abstract: Disclosed is a Fe—Ga—P—C—B—Si based metallic glass alloy particle prepared by a gas atomizing process, which has an approximately complete spherical shape, a relatively large particle size and a high crystallization temperature (Tx). The plurality of particles may be subjected to a spark plasma sintering process at the crystallization temperature or less under a compression pressure of 200 MPa or more, to provide a bulk Fe-based sintered metal soft magnetic material of metallic glass, which has a high density, a single phase structure of metallic glass in an as-sintered state, excellent soft magnetic characteristics applicable to a core of a magnetic head, a transformer or a motor, and a high specific resistance.
    Type: Grant
    Filed: December 24, 2003
    Date of Patent: November 24, 2009
    Assignee: Japan Science and Technology Agency
    Inventors: Akihisa Inoue, Baolong Shen
  • Patent number: 7618500
    Abstract: A system for coating a surface comprises providing a source of amorphous metal, providing ceramic particles, and applying the amorphous metal and the ceramic particles to the surface by a spray. The coating comprises a composite material made of amorphous metal that contains one or more of the following elements in the specified range of composition: yttrium (?1 atomic %), chromium (14 to 18 atomic %), molybdenum (?7 atomic %), tungsten (?1 atomic %), boron (?5 atomic %), or carbon (?4 atomic %).
    Type: Grant
    Filed: November 9, 2006
    Date of Patent: November 17, 2009
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Joseph C. Farmer, Frank M. G. Wong, Jeffery J. Haslam, Nancy Yang, Enrique J. Lavernia, Craig A. Blue, Olivia A. Graeve, Robert Bayles, John H. Perepezko, Larry Kaufman, Julie Schoenung, Leo Ajdelsztajn
  • Patent number: 7618499
    Abstract: An Fe-base in-situ composite alloy, castable into 3-dimensional bulk objects, where the alloy includes a matrix having one or both of a nano-crystalline phase and an amorphous phase, and a face-centered cubic crystalline phase. The alloy has an Fe content more than 60 atomic percent.
    Type: Grant
    Filed: October 1, 2004
    Date of Patent: November 17, 2009
    Inventors: William L. Johnson, Choongyun Paul Kim
  • Publication number: 20090266448
    Abstract: A magnetic alloy having a composition represented by the general formula of Fe100-x-yCuxBy (atomic %), wherein x and y are numbers meeting the conditions of 0.1?x?3, and 10?y?20, or the general formula of Fe100-x-y-zCuxByXz (atomic %), wherein X is at least one element selected from the group consisting of Si, S, C, P, Al, Ge, Ga and Be, and x, y and z are numbers meeting the conditions of 0.1?x?3, 10?y?20, 0?z?10, and 10<y+z?24), the magnetic alloy having a structure containing crystal grains having an average diameter of 60 nm or less in an amorphous matrix, and a saturation magnetic flux density of 1.7 T or more.
    Type: Application
    Filed: September 19, 2006
    Publication date: October 29, 2009
    Applicant: HITACHI METALS, LTD.
    Inventors: Motoki Ohta, Yoshihito Yoshizawa
  • Publication number: 20090263266
    Abstract: An improved amorphous aluminum alloy having high strength, ductility, corrosion resistance and fracture toughness is disclosed. The alloy has an amorphous phase and a coherent L12 phase. The alloy has nickel, cerium, at least one of scandium, erbium, thulium, ytterbium, and lutetium; and at least one of gadolinium, yttrium, zirconium, titanium, hafnium, niobium and iron. The volume fraction of the amorphous phase ranges from about 50 percent to about 95 percent and the volume fraction of the coherent L12 phase ranges from about 5 percent to about 50 percent.
    Type: Application
    Filed: April 18, 2008
    Publication date: October 22, 2009
    Applicant: United Technologies Corporation
    Inventor: Awadh B. Pandey
  • Publication number: 20090260720
    Abstract: Provided is a Nd-based two-phase separation amorphous alloy by adding an element having a big difference in heat of mixing in a Nd-based alloy with a superior amorphous formability through an inherent characteristic of compositional elements and consideration of thermodynamics, at the time of forming amorphous phase, to thereby enable two-phase separation amorphous alloy during solidification.
    Type: Application
    Filed: February 10, 2009
    Publication date: October 22, 2009
    Inventors: Eun Soo Park, Hye Jung Chang, Do Hyang Kim, Eun Young Jeong, Jin Kyu Lee, Hwi Jun Kim, Jung Chan Bae
  • Publication number: 20090263582
    Abstract: A method for building a three-dimensional object in a layer-by-layer manner, the method comprising heating a build chamber of a digital manufacturing system, feeding a solid feedstock of a modeling material comprising an amorphous metallic alloy to a liquefier assembly of the digital manufacturing system, heating the modeling material of the solid feedstock in the liquefier assembly to an extrudable state, and depositing the heated modeling material within the heated build chamber in a predetermined pattern to form the three-dimensional object.
    Type: Application
    Filed: April 3, 2009
    Publication date: October 22, 2009
    Applicant: Stratasys, Inc.
    Inventor: John Samuel Batchelder
  • Patent number: 7604876
    Abstract: An impact resistant clad composite armor which includes a ceramic core, and a layer of bulk amorphous alloy surrounding the ceramic core and preferably bonded chemically to the ceramic core and a method of manufacturing such armor is provided.
    Type: Grant
    Filed: December 18, 2006
    Date of Patent: October 20, 2009
    Assignee: Liquidmetal Technologies, Inc.
    Inventors: Steven Collier, Atakan Peker
  • Publication number: 20090250143
    Abstract: A nanometer-sized porous metallic glass and a method for manufacturing the same are provided. The porous metallic glass includes Ti (titanium) at 50.0 at % to 70.0 at %, Y (yttrium) at 0.5 at % to 10.0 at %, Al (aluminum) at 10.0 at % to 30.0 at %, Co (cobalt) at 10.0 at % to 30.0 at %, and impurities. Ti+Y+Al+Co+the impurities=100.0 at %.
    Type: Application
    Filed: June 17, 2009
    Publication date: October 8, 2009
    Applicant: Korea Institute of Science and Technology
    Inventors: Eric Fleury, Yu-Chan Kim, Ki-Bae Kim, Jayamani Jayaraj, Do-Hyang Kim, Byung-Joo Park
  • Patent number: 7597840
    Abstract: The formation of amorphous porous bodies and in particular to a method of manufacturing such bodies from amorphous particulate materials. The method allows for the control of the volume fraction as well as the spatial and size distribution of gas-formed pores by control of the size distribution of the powder particulates. The method allows for the production of precursors of unlimited size, and because the softened state of the amorphous metals used in the method possesses visco-plastic properties, higher plastic deformations can be attained during consolidation as well as during expansion.
    Type: Grant
    Filed: January 23, 2006
    Date of Patent: October 6, 2009
    Assignee: California Institute of Technology
    Inventors: Marios Demetriou, William L. Johnson, Christopher Thomas Veazey, Jan Schroers
  • Publication number: 20090242082
    Abstract: The present invention provides a Fe—B—Si system amorphous alloy thin strip excellent in high magnetic flux density, thermal stability, amorphous formability improved workability and low core loss. The present invention further provides a Fe—B—Si system amorphous alloy thin strip which has the reduced cost without using high purity iron resources such as an electrolytic iron as iron resources used in an amorphous alloy thin strip, and also has core loss less than 0.10 W/kg at W13/50 in soft magnetic property in alternating-current field. The Fe—B—Si system amorphous alloy thin strip according to the present invention contains an appropriate amounts of N, C, P to improve thermal stability, amorphous formability, workability (brittleness), and core loss without deteriolating magnetic flux density, and contains, in atomic %, B: 5-25%, Si: 1-30%, N: 0.001-0.2%, C: 0.003-10%, P: 0.001-0.
    Type: Application
    Filed: April 5, 2006
    Publication date: October 1, 2009
    Inventors: Takeshi Imai, Shigekatsu Ozaki, Yuuji Hiramoto, Yuichi Sato, Hiroaki Sakamoto
  • Publication number: 20090236494
    Abstract: It is found that alloys including amorphous phase comprising at least a first element selected from the group consisting of Pt and Ru, at least a second element selected from the group consisting of Zr, Hf, Si, Ir, Ru, Pd and Ni, and at least a third element selected from the group consisting of Si, Cu, Cr, Fe, Mo, Co, Al, Zr, Hf, Ni and Ru have excellent machining characteristics, heat-resistant characteristics, corrosion resistance and adhesion resistance. Using the alloys as the molding surface of a die, a heat resistant molding die for forming glass optical device having fine structure for performing high definite functions became possible to manufacture with excellent machining characteristics.
    Type: Application
    Filed: October 18, 2006
    Publication date: September 24, 2009
    Inventors: Seiichi Hata, Jyunpei Sakurai, Akira Shimokohbe, Shigeru Hosoe, Hiroyuki Nabeta
  • Patent number: 7591911
    Abstract: A gold-cobalt based amorphous alloy plated film consisting of a homogeneous amorphous phase not having microcrystals is formed by electroplating conducted by use of an electroplating bath containing a gold cyanide salt in a concentration of 0.01 to 0.1 mol/dm3 in terms of gold, a cobalt salt in a concentration of 0.02 to 0.2 mol/dm3 in terms of cobalt, and a tungstate in a concentration of 0.1 to 0.5 mol/dm3 in terms of tungsten. The gold-cobalt based amorphous alloy plated film obtained consists of a homogeneous amorphous phase not having microcrystals, and has an enhanced hardness while retaining the good contact resistance and chemical stability intrinsic of gold on such levels as to be free of problems on a practical use basis; therefore, the gold-cobalt based amorphous alloy plated film is effective for use as a contact material in electric and electronic component parts such as relays.
    Type: Grant
    Filed: September 29, 2006
    Date of Patent: September 22, 2009
    Assignees: Kanto Kagaku Kabushiki Kaisha, Waseda University
    Inventors: Kazutaka Senda, Masaru Kato, Tetsuya Osaka, Yutaka Okinaka
  • Patent number: 7591910
    Abstract: Bulk amorphous alloys based on quaternary Ni—Zr—Ti—Al alloy system, and the extension of this quaternary system to higher order alloys by the addition of one or more alloying elements, methods of casting such alloys, and articles made of such alloys are provided.
    Type: Grant
    Filed: December 4, 2003
    Date of Patent: September 22, 2009
    Assignee: California Institute of Technology
    Inventors: Donghua Xu, William L. Johnson
  • Patent number: 7582172
    Abstract: Pt-based bulk-solidifying amorphous alloys and methods of forming articles from Pt-based bulk-solidifying amorphous alloys are provided. The Pt-based alloys of the current invention are based on Pt—Ni—Co—Cu—P alloys.
    Type: Grant
    Filed: December 22, 2003
    Date of Patent: September 1, 2009
    Inventors: Jan Schroers, William L. Johnson
  • Patent number: 7582173
    Abstract: Disclosed is a single-phase amorphous alloy having an enhanced ductility. The single-phase amorphous alloy has a composition range of A100-a-bBaCb where a and b are respectively 0<a<15, 0?b?30 in atomic percent. Here, A includes at least one element selected from the group consisting of Be, Mg, Ca, Ti, Zr, Hf, Pt, Pd, Fe, Ni, and Cu. B includes at least one element selected from the group consisting of Y, La, Gd, Nb, Ta, Ag, Au, Co, and Zn. C includes at least one element selected from the group consisting of Al, In, Sn, B, C, Si, and P.
    Type: Grant
    Filed: June 2, 2005
    Date of Patent: September 1, 2009
    Assignee: Yonsei University
    Inventors: Eun Soo Park, Jong Hyun Na, Hye Jung Chang, Ju Yeon Lee, Byung Joo Park, Won Tae Kim, Do Hyang Kim
  • Publication number: 20090194205
    Abstract: A composite material based on a bulk metallic glass is disclosed. In an amorphous alloy phase forming a substantially continuous matrix, a second phase comprising graphite particles is embedded. The alloy is preferably zirconium based. The particles may have a carbide surface layer, which may be formed phase comprising carbide particles may also be present. The composite material has high plasticity, high yield strength, good elasticity and low coefficient of friction, which renders it a good candidate for applications like joints, frictional bearings or Springs.
    Type: Application
    Filed: August 29, 2006
    Publication date: August 6, 2009
    Inventors: Jorg F. Loffler, Marco Siegrist
  • Publication number: 20090189728
    Abstract: This invention provides an amorphous transformer for electric power supply, using a magnetic core formed of an amorphous alloy material, which, as compared with the conventional amorphous alloy material, has a lower annealing temperature and a higher level of magnetic properties. The amorphous transformer for electric power supply is provided with a magnetic core of a thin band of an amorphous alloy and a winding wire. The iron core has been annealed under such conditions that the iron core center part temperature during annealing after iron core molding is 300 to 340° C. and the holding time is not less than 0.5 hr. Further, for the iron core, the magnetic field intensity during annealing after the iron core molding is not less than 800 A/m.
    Type: Application
    Filed: February 27, 2007
    Publication date: July 30, 2009
    Inventors: Kazuyuki Fukui, Koji Yamashita, Yuichi Ogawa, Masamu Naoe, Yoshihito Yoshizawa
  • Patent number: 7563332
    Abstract: A nanometer-sized porous metallic glass and a method for manufacturing the same are provided. The porous metallic glass includes Ti (titanium) at 50.0 at % to 70.0 at %, Y (yttrium) at 0.5 at % to 10.0 at %, Al (aluminum) at 10.0 at % to 30.0 at %, Co (cobalt) at 10.0 at % to 30.0 at %, and impurities. Ti+Y+Al+Co+the impurities=100.0 at %.
    Type: Grant
    Filed: November 22, 2006
    Date of Patent: July 21, 2009
    Assignee: Korea Institute of Science and Technology
    Inventors: Eric Fleury, Yu-Chan Kim, Ki-Bae Kim, Jayamani Jayaraj, Do-Hyang Kim, Byung-Joo Park
  • Patent number: 7553382
    Abstract: The present invention relates to the addition of niobium to iron based glass forming alloys and iron based Cr—Mo—W containing glasses. More particularly, the present invention is related to changing the nature of crystallization resulting in glass formation that may remain stable at much higher temperatures, increasing the glass forming ability and increasing devitrified hardness of the nanocomposite structure.
    Type: Grant
    Filed: February 11, 2005
    Date of Patent: June 30, 2009
    Assignee: The NanoSteel Company, Inc.
    Inventors: Daniel J. Branagan, M. Craig Marshall, Brian Meacham
  • Publication number: 20090139612
    Abstract: In one aspect, a Zr-based amorphous alloy comprises Zr, Ti, Cu, Ni, Fe, Be, and Sn. In another aspect, a Zr-based amorphous alloy comprises about 30-75 atomic percent of (ZrxTiySnz), about 10-35 atomic percent of (CumNin), about 0.1-15 atomic percent of Fe, and about 0.1-35 atomic percent of Be. Reference numerals x, y and z are atomic fractions, and x+y+z equals to 1, wherein x is about 0.6-0.85, and z is in the range of about 0.01x-0.1x. Reference numerals m and n are atomic fractions, and m+n equals to 1, and wherein m is about 0.5-0.65. In yet another aspect, a method for preparing a Zr-based amorphous alloy comprises melting a raw material comprising Zr, Ti, Cu, Ni, Fe, Be, and Sn to form an alloy mixture; and molding the alloy mixture to form the amorphous alloy.
    Type: Application
    Filed: November 21, 2008
    Publication date: June 4, 2009
    Inventors: Kun Lu, Linlin Jiang, Faliang Zhang, Qing Gong
  • Patent number: 7540929
    Abstract: Metallic glass alloys of palladium, copper, cobalt, and phosphorus, that are bulk-solidifying having an amorphous structure. Other embodiments are described and claimed.
    Type: Grant
    Filed: February 23, 2007
    Date of Patent: June 2, 2009
    Assignee: California Institute of Technology
    Inventors: Marios D. Demetriou, John S. Harmon, William L. Johnson
  • Publication number: 20090130483
    Abstract: An amorphous, ductile brazing foil is produced with a composition of FeaNibCrcSidBeMofPg with 25?a?50 atomic %; 30?b?45 atomic %; 5<c?15 atomic %; 4?d?15 atomic %; 4?e?15 atomic %; 0?f?5 atomic %; 0?g?6 atomic %; and any impurities, wherein 10?d+e+g?28 atomic % with a+b+c+d+e+f+g=100. Excellent brazing joints can be produced with these brazing foils.
    Type: Application
    Filed: July 18, 2006
    Publication date: May 21, 2009
    Applicant: Vacuumschmelze GmbH & Co. KG
    Inventors: Thomas Hartmann, Dieter Nuetzel
  • Publication number: 20090120537
    Abstract: The present disclosure relates to a near metallic glass based alloy wherein the alloy includes at least 40 atomic percent iron, greater than 10 atomic percent of at least one or more metalloids, and less than 50 atomic percent of at least two or more transition metals, wherein one of said transition metals is Mo said alloy exhibits a tensile strength of 2400 MPa or greater and an elongation of greater than 2%.
    Type: Application
    Filed: November 10, 2008
    Publication date: May 14, 2009
    Applicant: THE NANOSTEEL COMPANY, INC.
    Inventors: Daniel James BRANAGAN, Alla V. Sergueeva
  • Publication number: 20090114317
    Abstract: Metallic mirrors made of bulk-solidifying amorphous alloys, the bulk-solidifying amorphous alloys providing ruggedness, lightweight structure, excellent resistance to chemical and environmental effects, and low-cost manufacturing, and methods of making such metallic mirrors from such bulk-solidifying amorphous alloys are provided.
    Type: Application
    Filed: October 19, 2005
    Publication date: May 7, 2009
    Inventors: Steve Collier, Atakan Peker
  • Publication number: 20090110955
    Abstract: Disclosed is an amorphous, ductile brazing foil with a composition consisting essentially of NirestCraBbPcSid with 2 atomic percent ?a?30 atomic percent; 0.5 atomic percent ?b?14 atomic percent; 2 atomic percent ?c?20 atomic percent; 0 atomic percent ?d?14 atomic percent; incidental impurities ?0.5 atomic percent; rest Ni, where c>b>c/15 and 10 atomic percent ?b+c+d?25 atomic percent. Also disclosed is amorphous, ductile Ni-based brazing foil having a composition consisting essentially of NirestCraBbPcSidCeXfYg wherein a, b, c, d, e, f, and g are numbers such that 2 atomic percent ?a?30 atomic percent; 0.5 atomic percent ?b?14 atomic percent; 2 atomic percent ?c?20 atomic percent; 0 atomic percent ?d?14 atomic percent; 0 atomic percent ?e?5 atomic percent; 0 atomic percent ?f?5 atomic percent; 0 atomic percent ?g?20 atomic percent; wherein incidental impurities are present, if at all, in amounts ?0.
    Type: Application
    Filed: October 14, 2008
    Publication date: April 30, 2009
    Applicant: Vacuumschmelze GmbH & Co. KG
    Inventors: Thomas Hartmann, Dieter Nuetzel
  • Publication number: 20090107590
    Abstract: An alloy, which can be used in a microwire, contains 26 to 52 weight % Fe; 26 to 52 weight % Co; 3.0 to 38.0 weight % Ni; at least one selected from the group consisting of 1.0 to 8.0 weight % V, 1.0 to 8.0 weight % Cr, 1.0 to 8.0 weight % Zr, 1.0 to 8.0 weight % Dy and 1.0 to 8.0 weight % Nb; at least one selected from the group consisting of 2.0 to 8.3 weight % Si and 2.0 to 8.3 weight % B; and at least one selected from the group consisting of 0.2 to 1.6 weight % Ce, 0.2 to 1.6 weight % La and 0.2 to 1.6 weight % Y. When cast in a microwire, the alloy can be substantially amorphous.
    Type: Application
    Filed: December 2, 2008
    Publication date: April 30, 2009
    Applicant: GLOBAL MICRO WIRE TECHNOLOGIES, LTD.
    Inventor: Eliezer Adar
  • Publication number: 20090101244
    Abstract: Mechanical hooks made of bulk-solidifying amorphous alloys, wherein the bulk-solidifying amorphous alloys provide ruggedness, durability, higher service loads, excellent resistance to chemical and environmental effects, and low-cost manufacturing are provided. In addition, methods of making such mechanical hooks from bulk-solidifying amorphous alloys are also disclosed.
    Type: Application
    Filed: October 24, 2005
    Publication date: April 23, 2009
    Inventors: Dennis Ogawa, Quoc Tran Pham, Atakan Peker
  • Patent number: 7520944
    Abstract: A method of forming in-situ composites of metallic alloys comprising an amorphous phase are provided. The method generally comprising the steps of transforming a molten liquid metal at least partially into a crystalline solid solution by cooling the molten liquid metal down to temperatures below a “remelting” temperature, then allowing the solid crystalline metal to remain at temperatures above the glass transition temperature and below the remelting temperature such that at least a portion of the metal remelts to form a partially amorphous phase in an undercooled liquid, and finally subsequently cooling the composite alloy to temperatures below the glass transition temperature.
    Type: Grant
    Filed: February 11, 2004
    Date of Patent: April 21, 2009
    Inventor: William L. Johnson
  • Patent number: 7517416
    Abstract: Iron based amorphous steel alloy having a high Manganese content and being non-ferromagnetic at ambient temperature. The bulk-solidifying ferrous-based amorphous alloys are multicomponent systems that contain about 50 atomic percent iron as the major component. The remaining composition combines suitable mixtures of metalloids (Group b elements) and other elements selected mainly from manganese, chromium, and refractory metals. Various classes of non-ferromagnetic ferrous-based bulk amorphous metal alloys are obtained. One class is a high-manganese class that contains manganese and boron as the principal alloying components. Another class is a high manganese-high molybdenum class that contains manganese, molybdenum, and carbon as the principal alloying components. These bulk-solidifying amorphous alloys can be obtained in various forms and shape for various applications and utlizations. The good processability of these alloys can be attributed to the high reduced glass temperature Trg (e.g., about 0.6 to 0.
    Type: Grant
    Filed: June 2, 2006
    Date of Patent: April 14, 2009
    Assignee: University of Virginia Patent Foundation
    Inventors: S. Joseph Poon, Gary J. Shiflet, Vijayabarathi Ponnambalam
  • Patent number: 7517415
    Abstract: The present invention relates to novel non-ferromagnetic amorphous steel alloys represented by the general formula: Fe—Mn-(Q)-B-M, wherein Q represents one or more elements selected from the group consisting of Sc, Y, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu, and M represents one or more elements selected from the group consisting of Cr, Co, Mo, C and Si. Typically the atomic percentage of the Q constituent is 10 or less. FIG. 2B represents a differential thermal analysis plot for several exemplary alloys according to the invention.
    Type: Grant
    Filed: May 25, 2004
    Date of Patent: April 14, 2009
    Assignee: University of Virginia Patent Foundation
    Inventors: S. Joseph Poon, Vijayabarathi Ponnambalam, Gary J. Shiflet
  • Publication number: 20090087682
    Abstract: To provide a method for producing a quasi-crystalline particle dispersed alloy clad material which can be formed into a thick plate or a member for a structure having a specific shape, in particular, a complicated shape while maintaining quasi-crystalline particles, and can be enhanced in strength when used as a member for a structure, in particular, in strength in a high temperature environment. According to the method for producing a quasi-crystalline particle dispersed alloy clad material 1 of the present invention, a quasi-crystalline particle dispersed alloy clad material 1 is produced by forming a quasi-crystalline particle dispersed alloy containing quasi-crystalline particles dispersed in a matrix, onto a base material 2 by a clad layer forming apparatus 100 at a temperature lower than or equal to a decomposition temperature of the quasi-crystalline particles.
    Type: Application
    Filed: March 28, 2008
    Publication date: April 2, 2009
    Inventors: Motoki HISHIDA, Masashi Fujita, Seiichi Koike
  • Publication number: 20090065100
    Abstract: Even if produced from a broad amorphous alloy ribbon, a nano crystal soft magnetic alloy, a magnetic core made of a nano crystal soft magnetic alloy, and the amorphous alloy ribbon for a nano crystal soft magnetic alloys which has the excellent alternate magnetic property, the small dispersion, the excellent temporal stability in high temperature, the excellent mass productivity can be provided. An amorphous alloy ribbon, wherein the alloy composition is represented by Fe100-a-b-c-dMaSibBcCd (atomic %), 0<a?10, 0?b?20, 2?c?20, 0<d?2, 9?a+b+c+d?35, and an amorphous alloy ribbon consists of inevitable impurities, and said M is at least one element selected from Ti, V, Zr, Nb, Mo, Hf, Ta, and W, and C concentration takes maximum value at 2-20 nm depth from the surface of said amorphous alloy with equivalent SiO2.
    Type: Application
    Filed: September 21, 2006
    Publication date: March 12, 2009
    Applicant: HITACHI METALS, LTD.
    Inventors: Yoshihito Yoshizawa, Yuichi Ogawa
  • Publication number: 20090056509
    Abstract: Pliers comprising a composite material comprising: individual regions of a ductile metal phase distributed in a substantially continuous amorphous metal alloy matrix are disclosed. Pliers comprising a first lever arm and a second lever arm that is complementary to the first lever arm, wherein the two arms are pivotally attached, and at least a portion of at least one of the two arms comprises the composite material are disclosed. A method of forming pliers is disclosed.
    Type: Application
    Filed: July 11, 2008
    Publication date: March 5, 2009
    Inventor: Mark C. Anderson
  • Publication number: 20090025834
    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: Application
    Filed: February 23, 2006
    Publication date: January 29, 2009
    Inventors: S. Joseph Poon, Gary J. Shiflet, Xiao-Jun Gu
  • Patent number: 7480984
    Abstract: A method of applying a physical barrier to suppress thermal decomposition near a surface of a thermoelectric material including applying a continuous metal foil to a predetermined portion of the surface of the thermoelectric material, physically binding the continuous metal foil to the surface of the thermoelectric material using a binding member, and heating in a predetermined atmosphere the applied and physically bound continuous metal foil and the thermoelectric material to a sufficient temperature in order to promote bonding between the continuous metal foil and the surface of the thermoelectric material. The continuous metal foil forms a physical barrier to enclose a predetermined portion of the surface. Thermal decomposition is suppressed at the surface of the thermoelectric material enclosed by the physical barrier when the thermoelectric element is in operation.
    Type: Grant
    Filed: June 7, 2004
    Date of Patent: January 27, 2009
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: Jeffrey S. Sakamoto, Thierry Caillat, Jean-Pierre Fleurial, G. Jeffrey Snyder
  • Publication number: 20090014096
    Abstract: Bulk solidifying amorphous alloys (BMGs) having improved corrosion resistance properties; and more particularly a sub-set of Zr—Ti-based BMGs having improved corrosion resistance properties are provided. The BMG compositions are formed by carefully controlling the concentration of, or removing altogether, highly electronegative elements, such as Ni and Cu from Zr—Ti-based bulk solidifying amorphous alloys thereby producing BMG materials with corrosion resistance properties that far exceed those of current commercially available BMGs and most conventional alloys. The elimination of these electronegative materials also opens the possibility of new uses for BMGs, including in biological applications.
    Type: Application
    Filed: June 18, 2008
    Publication date: January 15, 2009
    Inventors: Aaron Wiest, Marios D. Demetriou, William L. Johnson, Nikolaj Wolfson
  • Publication number: 20090000702
    Abstract: An aluminum base alloy is produced by supercooling a molten alloy composed mainly of aluminum. The molten alloy contains an element capable of forming a quasicrystalline phase, an element which aids formation of the quasicrystals, and an element which stabilizes a supercooled state of the molten alloy and delays crystallization of a crystalline phase, and is composed of a mixed composition of a fine amorphous phase and an aluminum crystalline phase or an aluminum supersaturated solid solution phase, or a single phase of only an amorphous phase.
    Type: Application
    Filed: March 28, 2008
    Publication date: January 1, 2009
    Applicants: Honda Motor Co., Ltd., Tohoku University
    Inventors: Masashi Fujita, Akihisa Inoue, Hisamichi Kimura
  • Publication number: 20080318082
    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: Application
    Filed: June 3, 2008
    Publication date: December 25, 2008
    Applicant: Vacuumschmelze GmbH & Co. KG
    Inventors: Thomas Hartmann, Dieter Nuetzel
  • Patent number: 7455811
    Abstract: An iron based brazing material for joining objects by brazing represents an alloy, which apart from iron contains approximately 9-30% Cr, approximately 0-8% Mn, approximately 0-25% Ni, 0-1% N, a maximum of 7% Mo, less than about 6% Si, approximately 0-2% B and/or about 0-15% P, all stated in weight percent, which addition of Si, P, and B in combination or separately lowers the liquidus temperature, that is the temperature at which the brazing material is completely melted. A brazed product is manufactured by brazing of iron based objects with an iron based brazing material which is alloyed with a liquidus lowering element as Si, P and B.
    Type: Grant
    Filed: June 3, 2002
    Date of Patent: November 25, 2008
    Assignee: Alfa Laval Corporate AB
    Inventor: Per Erik Sjodin
  • Patent number: 7449074
    Abstract: A nano-crystalline steel sheet and a method of making a nano-crystalline steel sheet are provided. The nano-crystalline steel sheet may be produced by supplying a liquid metallic glass forming alloy to counter-rotating casting rolls. The liquid alloy may form partially solidified layers on each of the casting rolls. The partially solidified layers may then be pressed together by the counter-rotating casting rolls to form a sheet. The twin casting roll method may provide a sufficiently high cooling rate during solidification of the alloy to create a nano-crystalline microstructure.
    Type: Grant
    Filed: April 28, 2005
    Date of Patent: November 11, 2008
    Assignee: The Nano Company, Inc.
    Inventor: Daniel James Branagan
  • Patent number: 7425239
    Abstract: An Fe-based amorphous alloy ribbon having a composition comprising FeaSibBcCd and inevitable impurities, wherein a is 80 to 83 atomic %, b is 0.1 to 5 atomic %, c is 14 to 18 atomic %, and d is 0.01 to 3 atomic %, the concentration distribution of C measured radially from both surfaces to the inside of said Fe-based amorphous alloy ribbon having a peak within a depth of 2 to 20 nm.
    Type: Grant
    Filed: February 17, 2005
    Date of Patent: September 16, 2008
    Assignee: Hitachi Metals, Ltd.
    Inventors: Yuichi Ogawa, Masamu Naoe, Yoshihito Yoshizawa
  • Publication number: 20080202649
    Abstract: Composite phase structure of early transition metal-based metallic alloys, including those of crystalline, quasicrystalline and amorphous phases, can be obtained in a controllable way upon direct (in-situ) cooling (solidification) of the alloy, realized either by adjusting the alloy compositions at a fixed cooling rate or by changing the cooling rates for a given alloy composition. Some embodiments are based on the addition of later transition metals, mainly of Cu with Ni or Fe with Co in early transition metal based (mainly Ti and Zr or Hf and Nb) metallic alloys. If cooling rate is on the scale of 103° C./s, a wholly amorphous structure is obtained for most of the compositions. At reduced cooling rates, composite structures with different kinds of phases can be achieved, as illustrated graphically in FIG. 1. Nickel addition promotes the formation of quasicrystalline phases, especially for Ti-rich alloy compositions with beryllium.
    Type: Application
    Filed: June 13, 2006
    Publication date: August 28, 2008
    Inventors: Faqiang Guo, S. Joseph Poon, Gary J. Shiflet
  • Publication number: 20080196795
    Abstract: The invention relates to a method of producing a strip of nanocrystalline material which is obtained from a wound ribbon that is cast in an amorphous state, having atomic composition [Fe1-a-bCoaNib]100-x-y-z-$g(a)-$g(b)-$g(g)CuxSiyBzNb$g(a)M?$g(b)M$g(g), M? being at least one of elements V, Cr, Al and Zn, and M being at least one of elements C, Ge, P, Ga, Sb, In and Be, with: a $m(F) 0.07 and b $m(F) 0.1, 0.5 $m(F) x $m(F) 1.5 and 2 $m(F) $g(a) $m(F) 5, 10 $m(F) y $m(F) 16.9 and 5 $m(F) z $m(F) 8, $g(b) $m(F) 2 and $g(g) $m(F) 2. According to the invention, the amorphous ribbon is subjected to crystallisation annealing, in which the ribbon undergoes annealing in the unwound state, passing through at least two S-shaped blocks under voltage along an essentially longitudinal axial direction of the ribbon, such that the ribbon is maintained at an annealing temperature of between 530° C. and 700° C. for between 5 and 120 seconds and under axial tensile stress of between 2 and 1000 MPa.
    Type: Application
    Filed: May 19, 2006
    Publication date: August 21, 2008
    Applicant: IMPHY ALLOYS
    Inventors: Thierry Waeckerle, Thierry Save, Alain Demier
  • Publication number: 20080196794
    Abstract: The invention is related to bulk metallic glass/metal alloys, a method for their production and their uses. Especially, the invention is concerned with composite materials resulting from the co-deformation of a bulk metallic glass and a metal. More specifically the method for the production of a composite of at least one bulk metallic glass and at least one metal, comprises the step of co-deforming the bulk metallic glass and the metal at a temperature comprised in the supercooled liquid region of the bulk metallic glass.
    Type: Application
    Filed: February 20, 2008
    Publication date: August 21, 2008
    Inventors: Jean-Jacques BLANDIN, Michel Suery, Gilles Boutet, Sebastien Gravier, Sylvain Puech
  • Patent number: 7413621
    Abstract: High strength, high ductility aluminum base alloys containing from 3 to 18.5 atomic percent nickel and 3 to 14.0 atomic percent yttrium, said alloy being in the devitrified state and containing less than 40 percent intermetallic phases.
    Type: Grant
    Filed: July 19, 2005
    Date of Patent: August 19, 2008
    Assignee: United Technologies Corporation
    Inventor: Thomas J. Watson
  • Publication number: 20080190521
    Abstract: An alloy is disclosed which contains at least four components. The alloy has a bulk structure containing at least one amorphous phase. The alloy composition follows an “80:20 scheme”, i.e., the alloy composition is [(AxD100?x)a(EyG100?y)100?a]100?bZb with the number “a” being approximately 80. Preferably, component A is Zr. The other components D, E, G and, optionally, Z are all different from each other and different from component A. A preferred system is Zr—Cu—Fe—Al. Further disclosed are Cu-free systems of the type Zr—Fe—AI-Pd/Pt. Importantly, the alloy is substantially free of nickel. This makes the alloy especially suitable for medical applications. Methods of preparing such an alloy, uses of the alloy and articles manufactured from the alloy are also disclosed.
    Type: Application
    Filed: September 5, 2005
    Publication date: August 14, 2008
    Applicant: Eidgenossische Technische Hochschule Zurich
    Inventors: Jorg F. Loffler, Kaifeng Jin