Having Composition Or Density Gradient Or Differential Porosity Patents (Class 428/547)
  • Patent number: 10544689
    Abstract: A blade for a turbomachine comprising an outer shell and an inner core which is at least partially enclosed by the outer shell and has a higher porosity than the outer shell. The outer shell is formed by a ceramic body or a body made of a ceramic matrix composite material, and the inner core is formed by a fiber-reinforced ceramic or a fiber-reinforced ceramic matrix composite material.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: January 28, 2020
    Assignee: MTU AERO ENGINES AG
    Inventors: Artur Borto, Piotr Kapusta, Dawid Luczyniec
  • Patent number: 10393111
    Abstract: A pumping mechanism is disclosed. The pumping mechanism may include a barrel formed of a barrel substrate and including a first end surface, a second end surface opposite the first end surface, and a bore between the first and second end surfaces. Each of the first and second end surfaces and the bore is coated with a metal plating. The pumping mechanism may further include a plunger formed of a plunger substrate and configured to be slidably disposed in the bore in barrel, the plunger substrate having a tribological coating.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: August 27, 2019
    Assignee: Caterpillar Inc.
    Inventors: Alan Ray Stockner, Aaron M. Brown, Sridhar Thangaswamy, Glenn B. Cox, John Jay Truhan, Jr., Michael J. Pollard, John P. McDonnel
  • Patent number: 10279441
    Abstract: A plate with a passage and the like capable of shortening a process time than a previous one and of suppressing leakage from or contamination to the passage are provided. The plate with the passage is a plate in which the passage for causing a fluid to circulate therein is formed, and includes a body plate formed of a metal or an alloy and in which a groove serving as the passage is provided, a cover plate that covers the groove, and a deposition layer that is formed such that metal or alloy powder is accelerated with a gas and is sprayed on the body plate and the cover plate in a solid phase, and covers the cover plate.
    Type: Grant
    Filed: July 6, 2011
    Date of Patent: May 7, 2019
    Assignee: NHK Spring Co., Ltd.
    Inventor: Toshihiko Hanamachi
  • Patent number: 10265143
    Abstract: A dental implant has a coronal body formed of solid metal that connects at an interface to a bone fixation body. The bone fixation body is made separately from the coronal body and has a porous structure with a cylindrical shape. The bone fixation body connects to the coronal body after the bone fixation body is separately made from the coronal body.
    Type: Grant
    Filed: April 30, 2016
    Date of Patent: April 23, 2019
    Inventor: Philip Scott Lyren
  • Patent number: 10138739
    Abstract: A part made of a ceramic material, including a portion forming a base and a portion forming a wall, wherein the base consists of a low-porosity ceramic material and the wall is obtained by powder sintering and includes an envelope and a core, the core being within the envelope, the porosity of the core being higher than that of the base and increasing the further it is from the base.
    Type: Grant
    Filed: October 16, 2013
    Date of Patent: November 27, 2018
    Assignee: SAFRAN AIRCRAFT ENGINES
    Inventors: Michael Podgorski, Ludovic Molliex
  • Patent number: 9956666
    Abstract: A cutting element includes a substrate and a cutting layer disposed on a surface of the substrate. The cutting layer includes an ultra hard material. The substrate includes tungsten carbide and a metal binder. The substrate has a magnetic saturation value in the range of from 80 to less than 85%. In another aspect, the magnetic saturation value may increase within the substrate along a gradient, wherein proximal to the interface with the cutting layer, the substrate has a magnetic saturation value in the range of from 80 to less than 85%. Drill bits incorporating such cutting elements and methods of manufacturing such cutting elements are described.
    Type: Grant
    Filed: February 6, 2014
    Date of Patent: May 1, 2018
    Assignee: SMITH INTERNATIONAL, INC.
    Inventors: Loel G. Corbett, J. Daniel Belnap
  • Patent number: 9700993
    Abstract: An abrasive segment can include an inner segment portion, an outer segment portion, and a central segment portion connected thereto. The inner segment portion can include an inner circumferential wall and an outer circumferential wall. Leading and trailing radial sidewalls can extend between the inner circumferential wall and the outer circumferential wall opposite each other. The outer segment portion can include an inner circumferential wall and an outer circumferential wall. Leading and trailing radial sidewalls can extend between the inner circumferential wall and the outer circumferential wall opposite each other. The central segment portion can include a leading radial sidewall and a trailing radial sidewall. The leading radial sidewall of the central segment portion can establish an acute angle, ?, with respect to the outer circumferential wall of the inner segment portion and an obtuse angle, ?, with respect the inner circumferential wall of the outer segment portion.
    Type: Grant
    Filed: September 2, 2015
    Date of Patent: July 11, 2017
    Assignee: SAINT-GOBAIN ABRASIVES, INC. & SAINT-GOBAIN ABRASIFS
    Inventor: Ignazio Gosamo
  • Patent number: 9524888
    Abstract: A stage heater and a method of manufacturing a shaft capable of suppressing heat transfer from a heating substrate toward the shaft. The stage heater includes: a heating substrate made of aluminum or an alloy containing aluminum; and a shaft that is bonded to one surface of the heating substrate and supports the heating substrate. The shaft includes: a pipe made of a metal having a lower heat conductivity than a material of the heating substrate; and a bonding layer formed on a side of the pipe to be bonded to the heating substrate by accelerating a powder material of aluminum or a powder material of an alloy containing aluminum together with a gas and blowing the powder material while being maintained in a solid phase to the pipe so as to deposit thereon.
    Type: Grant
    Filed: April 19, 2011
    Date of Patent: December 20, 2016
    Assignee: NHK Spring Co., Ltd.
    Inventors: Takashi Kayamoto, Satoshi Hirano
  • Patent number: 9453289
    Abstract: A ceramic, metal, or cermet according to one embodiment includes a first layer having a gradient in composition, microstructure and/or density in an x-y plane oriented parallel to a plane of deposition of the first layer. A ceramic according to another embodiment includes a plurality of layers comprising particles of a non-cubic material, wherein each layer is characterized by the particles of the non-cubic material being aligned in a common direction. Additional products and methods are also disclosed.
    Type: Grant
    Filed: April 12, 2011
    Date of Patent: September 27, 2016
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Klint Aaron Rose, Joshua D. Kuntz, Marcus Worsley
  • Patent number: 9447860
    Abstract: A component includes a component body which has a toothed section. An adaptive coating is applied, at least in parts, to the toothed section, the coating having a thickness of a maximum 5 ?m. The adaptive coating may have a hardness gradient that has an increasing hardness from an outer coating surface in the direction towards the component body.
    Type: Grant
    Filed: May 10, 2012
    Date of Patent: September 20, 2016
    Assignee: High Tech Coatings GmbH
    Inventors: Guenter Eitzinger, Klaus Preinfalk
  • Patent number: 9346149
    Abstract: Embodiments relate to polycrystalline diamond compacts (“PDCs”) including a polycrystalline diamond (“PCD”) table having a diamond grain size distribution selected for improving leachability. In an embodiment, a PDC includes a PCD table bonded to a substrate. The PCD table includes diamond grains exhibiting diamond-to-diamond bonding therebetween. The diamond grains includes a first amount being about 30 to about 65 volume % of the diamond grains and a second amount being about 18 to about 65 volume % of the diamond grains. The first amount exhibits a first average grain size of about 8 ?m to about 22 ?m. The second amount exhibits a second average grain size that is greater than the first average grain size and is about 15 ?m to about 50 ?m. Other embodiments are directed methods of forming PDCs, and various applications for such PDCs in rotary drill bits, bearing apparatuses, and wire-drawing dies.
    Type: Grant
    Filed: January 4, 2013
    Date of Patent: May 24, 2016
    Assignee: US SYNTHETIC CORPORATION
    Inventors: Brandon Paul Linford, Cody William Knuteson
  • Patent number: 9290855
    Abstract: In one embodiment, a method for electrophoretic deposition of a three-dimensionally patterned green body includes suspending a first material in a gelling agent above a patterned electrode of an electrophoretic deposition (EPD) chamber, and gelling the suspension while applying a first electric field to the suspension to cause desired patterning of the first material in a resulting gelation. In another embodiment, a ceramic, metal, or cermet includes a plurality of layers, wherein each layer includes a gradient in composition, microstructure, and/or density in an x-y plane oriented parallel to a plane of deposition of the plurality of layers along a predetermined distance in a z-direction perpendicular to the plane of deposition.
    Type: Grant
    Filed: April 23, 2012
    Date of Patent: March 22, 2016
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Marcus A. Worsley, Joshua D. Kuntz, Klint A. Rose
  • Patent number: 9220169
    Abstract: Device is a hermetically sealed electronics package bonded to an electrode or flexible circuit that is suitable for implantation such as for a retinal or cortical electrode array. The hermetically sealed electronics package is bonded to the electrode or flexible circuit by electroplating a biocompatible material, such as platinum or gold, forming a plated connection, bonding the flexible circuit to the electronics package. The resulting electronic device is biocompatible and is suitable for long-term implantation. The device comprises a substrate containing a contact, a flexible assembly containing a pad, and electroplated bonding between said contact and said pad that bonds said substrate and said flexible assembly together.
    Type: Grant
    Filed: June 21, 2007
    Date of Patent: December 22, 2015
    Assignee: Second Sight Medical Products, Inc.
    Inventors: Dao Min Zhou, James Singleton Little, Robert J. Greenberg
  • Patent number: 9056354
    Abstract: A method of forming a ceramic layer on a metal substrate. A substrate (40) is formed (54) from a powder (24) of the metal, and may optionally be partially sintered (56). A layer (43) of powdered ceramic is formed (58) on or applied against the substrate (45). The ceramic powder may include a proportion of nano-sized particles effective to reduce the ceramic sintering temperature and to increase the sintering shrinkage of the ceramic layer to more closely match that of the metal substrate. The substrate and layer are then co-sintered (21, 60) at a temperature and for a duration that densifies and bonds them, producing a metal/ceramic layered material system with low interface stress that is durable to temperature variations in a gas turbine. Spark plasma sintering (32, 34, 36) may be used to sinter and/or co-sinter substrate and layer materials that normally cannot be sintered.
    Type: Grant
    Filed: August 30, 2011
    Date of Patent: June 16, 2015
    Assignees: SIEMENS AKTIENGESELLSCHAFT, MIKRO SYSTEMS, INC
    Inventors: Gary B. Merrill, Cora Schillig, Andrew J. Burns, John R. Paulus
  • Patent number: 9046324
    Abstract: A light weight pre-stressed antiballistic article including a monolith ceramic plate/tile bonded to a thin lightweight thermal expansion material with an adhesive, characterized, in that the thermal expansion material has a thermal expansion coefficient at least 50% higher than the ceramic plate/tile, and the thermal expansion material is bonded to either the front face, back face or both faces of the ceramic plate/tile at a bonding temperature of between 50° C. and 250° C. with adhesive and subsequently cooled, whereby upon cooling, the bonded thermal expansion material contracts to a greater extent than the ceramic plate/tile, exerting compression stress on the ceramic plate/tile.
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: June 2, 2015
    Assignee: ISRAEL MILITARY INDUSTRIES LTD.
    Inventors: Ron Bergman, Benjamin Yavin
  • Publication number: 20150030871
    Abstract: A functionally graded thermal barrier coating (30) formed as a plurality of layers (34, 36 . . . 44, 46) of materials deposited by a powder deposition process wherein the composition of the various layers changes across a thickness of the coating. A composition gradient may exist within a single layer (58) due to the buoyancy of ceramic particles (62) within a melt pool (56) of bond coat material (64). The powder deposition process includes powdered flux material (20) which melts to form a protective layer of slag (28) during the deposition process.
    Type: Application
    Filed: September 3, 2013
    Publication date: January 29, 2015
    Inventors: Gerald J. Bruck, Ahmed Kamel
  • Patent number: 8794879
    Abstract: The tool has a clamping part (2) and a working part (11). It consists of a wear-resistant material, which contains tungsten carbide which has a grain size that lies in the range between approximately 0.2 and approximately 0.5 ?m. The clamping part (2) consists of a tough material, which likewise contains tungsten carbide which has a grain size in the range between approximately 0.8 and approximately 1.3 ?m. In a transitional region (11) between the working part (11) and the clamping part (2), the proportion of wear-resistant tungsten carbide decreases in the direction of the clamping part (2) to 0 and the proportion of tough tungsten carbide decreases in the direction of the working part (11) to 0. The mixing ratio between wear-resistant and tough tungsten carbide changes approximately steadily in the transitional region (10).
    Type: Grant
    Filed: June 15, 2010
    Date of Patent: August 5, 2014
    Assignee: Komet Group GmbH
    Inventor: Gabriele Durst
  • Patent number: 8758890
    Abstract: A coated cutting tool includes a substrate and a PVD coating having an outermost zone C being a nitride, carbide, boride, or mixtures thereof, of Si and at least two additional elements selected from Al, Y, and groups 4, 5 or 6 of the periodic table and zone C is free from a compositional gradient of an average content of Si. Zone C has a laminar, aperiodic, multilayered structure with alternating individual layers X and Y having different compositions from each other. The coating further includes a zone A closest to the substrate, a transitional zone B, where zone A is essentially free from Si, zone B includes a compositional gradient of the average content of Si, and where the average content of Si is increasing towards zone C.
    Type: Grant
    Filed: December 3, 2010
    Date of Patent: June 24, 2014
    Assignee: Sandvik Intellectual Property AB
    Inventors: Johan Böhlmark, Helen Blomqvist
  • Patent number: 8752752
    Abstract: A composite steel plate includes at least two steel sheets rolled to form a plate. One of the sheets has a composition that varies in a depthwise direction, between nanocrystalline and micron grained. The plate is made by treating a steel sheet to produce a composition in the sheet that varies in a depthwise direction of the sheet between nanocrystalline and micron grained, stacking the treated sheet with at least one other steel sheet, and rolling the stacked sheets to form the plate.
    Type: Grant
    Filed: March 9, 2009
    Date of Patent: June 17, 2014
    Assignee: Hong Kong Polytechnic University
    Inventors: Jian Lu, Junbao Zhang, Aiying Chen
  • Patent number: 8748006
    Abstract: The invention relates to a slide bearing composite material having at least one carrier layer and a sintered bearing metal layer. The sintered bearing metal layer is designed in at least one layer region as a gradient layer.
    Type: Grant
    Filed: March 10, 2010
    Date of Patent: June 10, 2014
    Assignee: Federal-Mogul Wiesbaden GmbH
    Inventors: Holger Schmitt, Thomas Enghof, Daniel Meister
  • Patent number: 8701970
    Abstract: A method of forming and assembling at least two parts together that may be metal, ceramic, or a combination of metal and ceramic parts. Such parts may have different CTE. Individual parts that are formed and sintered from particles leave a network of interconnecting porosity in each sintered part. The separate parts are assembled together and then a fill material is infiltrated into the assembled parts using a method such as capillary action, gravity, and/or pressure. The assembly is then cured to yield a bonded and fully or near-fully dense part that has the desired physical and mechanical properties for the part's intended purpose. Structural strength may be added to the parts by the inclusion of fibrous materials.
    Type: Grant
    Filed: June 17, 2011
    Date of Patent: April 22, 2014
    Assignee: Babcock & Wilcox Technical Services Y-12, LLC
    Inventor: Edward B. Ripley
  • Publication number: 20140050937
    Abstract: A steel manufacturing process can include forming an iron oxide layer on a hot band during hot rolling; reducing the iron oxide layer on the hot band to form a sponge iron layer that includes pores; the sponge-iron layer having a thickness in a range of about 0.05 ?m to about 1000 ?m, about 0.1 ?m to about 100 ?m, or about 5 ?m to about 25 ?m; and depositing an alloying element into the pores of the sponge iron layer to form an impregnated sponge-iron layer. The process can further include annealing the impregnated sponge-iron layer to produce an iron alloy layer carried by the substrate.
    Type: Application
    Filed: October 31, 2013
    Publication date: February 20, 2014
    Applicant: Arcanum Alloy Design Inc.
    Inventor: Daniel E. Bullard
  • Patent number: 8641286
    Abstract: A composite bearing member 10 includes: a bearing sliding material 20 whose surface contacts a rotating portion; a bearing base material 30 made of a material different from a material constituting the bearing sliding material 20; and a joining layer 40 joining the bearing sliding material 20 and the bearing base material 30. Further, the bearing sliding material 20 has a sliding layer 50 sliding the rotating portion on a surface. Furthermore, the bearing sliding material 20 has, between the sliding layer 50 and the joining layer 40, a composition graded layer 60 which dispersedly contains the same metal material as a metal material constituting the joining layer 40 and in which a content of the metal material is increased toward the joining layer 40.
    Type: Grant
    Filed: November 18, 2009
    Date of Patent: February 4, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Than Trong Long, Yuuji Hisazato, Satoshi Namba, Kazuma Mukai
  • Publication number: 20130344347
    Abstract: A process and device in production of precise three-dimensional sinters of a shape substantially close to that of an original part, using flash sintering produced by spark plasma sintering (SPS) technology. A mold is produced in a die of an enclosure for SPS flash sintering, the mold being shaped as an impression of the original part. The following are deposited in successive layers in the mold: a layer based on a superalloy powder, a metallic protection layer, and a thermal barrier layer. In a sintering, pressurization is initiated and a pulsed current passes through, producing a rapid rise in temperature in accordance with a flash sintering cycle whose temperature, pressure, and duration are regulated, with at least one temperature plateau and one pressure plateau. The layer of superalloy forms, by diffusion, during the sintering, a bonding continuum of material with the part to be repaired.
    Type: Application
    Filed: March 6, 2012
    Publication date: December 26, 2013
    Applicant: SNECMA
    Inventors: Juliette Hugot, Justine Menuey
  • Patent number: 8574721
    Abstract: A multilayer coating includes a bond coat layer, a first barrier layer applied on the bond coat layer, and a second barrier layer applied on the first barrier layer. The first barrier layer has a compositional gradient comprising a majority of a first rare earth stabilized zirconia material proximate the bond coat layer to a majority of a second rare earth stabilized zirconia material away from the bond coat layer. The first and second rare earth stabilized zirconia materials are different. The second barrier layer has a compositional gradient comprising a majority of the second rare earth stabilized zirconia material to 100 wt % of a third rare earth stabilized zirconia material away from the first barrier layer.
    Type: Grant
    Filed: November 12, 2012
    Date of Patent: November 5, 2013
    Assignee: United Technologies Corporation
    Inventors: Peter F. Gero, Kevin W. Schlichting, James W. Neal
  • Patent number: 8535605
    Abstract: The invention describes a method of producing a sinter-hardened component from a metallic powder containing chromium which is pre-alloyed in particular, comprising the steps of compacting the powder to form a green compact and then sintering the green compact in a reducing sintering atmosphere at a sintering temperature in excess of 1100° C. A gas containing carbon is added to the sintering atmosphere.
    Type: Grant
    Filed: May 29, 2008
    Date of Patent: September 17, 2013
    Assignee: MIBA Sinter Austria GmbH
    Inventors: Peter Orth, Gerold Stetina
  • Publication number: 20130230734
    Abstract: Porous implant material having a plurality of metal bodies having different porosity rates which are bonded with each other at bonded-boundary surface F parallel to a first direction, wherein: a bonded body of the metal bodies has an entire porosity rate of 50% to 92%; the metal body having higher porosity rate is a porous metal body having a three-dimensional network formed from a continuous skeleton in which a plurality of pores are interconnected; the metal body having lower porosity rate has a porosity rate of 0 to 50% and an area-occupation rate of 0.5% to 50% in a cross-section surface orthogonal to an axial direction which agrees with the first direction along the bonded-boundary surface; and a compressive strength compressing in a direction parallel to the bonded-boundary surface is 1.4 times to 10 times of a compressive strength compressing in a direction orthogonal to the bonded-boundary surface.
    Type: Application
    Filed: November 10, 2011
    Publication date: September 5, 2013
    Applicant: MITSUBISHI MATERIALS CORPORATION
    Inventors: Yuzo Daigo, Shinichi Ohmori, Komei Kato
  • Publication number: 20130133531
    Abstract: An anvil including a hard phase and a metal matrix in which the hard phase is dispersed, a concentration of the metal matrix phase varying according to a concentration gradient, is disclosed. The anvil may be used in a high pressure press. Methods of making an anvil including forming a hard phase dispersed in a metal matrix phase, a concentration of the metal matrix phase varying according to a concentration gradient, are also disclosed.
    Type: Application
    Filed: November 26, 2012
    Publication date: May 30, 2013
    Applicant: SMITH INTERNATIONAL, INC.
    Inventor: SMITH INTERNATIONAL, INC.
  • Patent number: 8449818
    Abstract: The invention is directed at sputter targets including 50 atomic % or more molybdenum, a second metal element of titanium, and a third metal element of chromium or tantalum, and deposited films prepared by the sputter targets. In a preferred aspect of the invention, the sputter target includes a phase that is rich in molybdenum, a phase that is rich in titanium, and a phase that is rich in the third metal element.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: May 28, 2013
    Assignee: H. C. Starck, Inc.
    Inventors: Gary Alan Rozak, Mark E. Gaydos, Patrick Alan Hogan, Shuwei Sun
  • Patent number: 8389126
    Abstract: A structural component suitable for use as refinery and/or petrochemical process equipment and piping is provided. The structural component has improved corrosion, abrasion, environmental degradation resistance, and fire resistant properties with a substrate coated with a surface-treated amorphous metal layer. The surface of the structural component is surface treated with an energy source to cause a diffusion of at least a portion of the amorphous metal layer and at least a portion of the substrate, forming a diffusion layer disposed on a substrate. The diffusion layer has a negative hardness profile with the hardness increasing from the diffusion surface in contact with the substrate to the surface away from the substrate.
    Type: Grant
    Filed: April 28, 2010
    Date of Patent: March 5, 2013
    Assignee: Chevron U.S.A. Inc.
    Inventors: Grzegorz Jan Kusinski, Jan H. Kusinski
  • Patent number: 8383214
    Abstract: A composite article comprises a substrate having at least a substrate surface and a graded-composition coating disposed on a substrate surface. The composition of the coating material varies substantially continuously across its thickness. The coating reduces the transmission rates of oxygen, water vapor, and other chemical species through the substrate such that the composite article can be used effectively as a diffusion barrier to protect chemically sensitive devices or materials. An organic light-emitting device incorporates such a composite article to provide an extended life thereto.
    Type: Grant
    Filed: November 7, 2008
    Date of Patent: February 26, 2013
    Assignee: General Electric Company
    Inventors: Marc Schaepkens, Kevin Warner Flanagan
  • Publication number: 20120269218
    Abstract: In one embodiment, a method for electrophoretic deposition of a three-dimensionally patterned green body includes suspending a first material in a gelling agent above a patterned electrode of an electrophoretic deposition (EPD) chamber, and gelling the suspension while applying a first electric field to the suspension to cause desired patterning of the first material in a resulting gelation. In another embodiment, a ceramic, metal, or cermet includes a plurality of layers, wherein each layer includes a gradient in composition, microstructure, and/or density in an x-y plane oriented parallel to a plane of deposition of the plurality of layers along a predetermined distance in a z-direction perpendicular to the plane of deposition.
    Type: Application
    Filed: April 23, 2012
    Publication date: October 25, 2012
    Applicant: LAWRENCE LIVERMORE NATIONAL SECURITY, LLC
    Inventors: Marcus A. Worsley, Joshua D. Kuntz, Klint A. Rose
  • Patent number: 8241757
    Abstract: A multilayer substrate includes a base layer, a coating layer and an intermediate layer positioned between the base layer and the coating layer. The intermediate layer contains chromium and nitrogen. A content of the chromium in the intermediate layer gradually decreases from the base layer to the coating layer.
    Type: Grant
    Filed: October 27, 2009
    Date of Patent: August 14, 2012
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventors: Chao-Tsang Wei, Chung-Pei Wang, Chien-Hao Huang, Wei-Cheng Ling, Chia-Ying Wu, Ga-Lane Chen
  • Publication number: 20120202087
    Abstract: A method of treating a porous work piece includes infiltrating a liquid metallic alloy into surface porosity of a work piece and isothermally solidifying the liquid metallic alloy to at least partially fill the surface porosity.
    Type: Application
    Filed: February 4, 2011
    Publication date: August 9, 2012
    Inventor: Clifford C. Bampton
  • Publication number: 20120088115
    Abstract: Red rust staining of Al/Zn coated steel strip in “acid rain” or “polluted” environments can be minimised by forming the coating as an Al—Zn—Si—Mg alloy coating with an OT:SDAS ratio greater than a value of 0.5:1, where OT is the overlay thickness on a surface of the strip and SDAS is the measure of the secondary dendrite arm spacing for the Al-rich alpha phase dendrites in the coating. Red rust staining in “acid rain” or “polluted” environments and corrosion at cut edges in marine environments can be minimised in Al—Zn—Si—Mg alloy coatings on steel strip by selection of the composition (principally Mg and Si) and solidification control (principally by cooling rate) and forming Mg2 Si phase particles of a particular morphology in interdendritic channels.
    Type: Application
    Filed: March 12, 2010
    Publication date: April 12, 2012
    Applicant: BLUESCOPE STEEL LIMITED
    Inventors: Ross McDowall Smith, Qiyang Liu, Bryan Andrew Shedden, Aaron Kiffer Neufeld, Joe Williams, David James Nolan, Wayne Renshaw
  • Patent number: 8152941
    Abstract: Semi-finished products for the production of devices containing thermoelastic materials with improved reliability and reproducibility are described. The semi-finished products are based on an alloy of Ni—Ti plus elements X and/or Y. The nickel amount is comprised between 40 and 52 atom %, X is comprised between 0.1 and 1 atom %, Y is comprised between 1 and 10 atom % and the balance is titanium. The one or more additional elements X are chosen from Al, Ta, Hf, Si, Ca, Ce, La, Re, Nb, V, W, Y, Zr, Mo, and B. The one or more additional elements Y are chosen from Al, Ag, Au, Co, Cr, Fe, Mn, Mo, Nb, Pd, Pt, Ta and W.
    Type: Grant
    Filed: October 28, 2010
    Date of Patent: April 10, 2012
    Assignee: SAES Smart Materials
    Inventors: Francis E. Sczerzenie, Graeme William Paul
  • Patent number: 8114526
    Abstract: A composite substrate for superconductors and methods for making the same are described. The composite substrate of the present invention includes at least a core layer having and a sheath layer having a cube texture on at least a portion its surface. In certain embodiments, the core layer can include a nickel-tungsten-molybdenum alloy having about 2-10 atomic percent tungsten and 2-15 atomic percent molybdenum. In some embodiments, the sheath layer can include nickel or a nickel-tungsten alloy having about 0 to 6 atomic percent tungsten. Generally, the core layer is stronger than the sheath layer and an interdiffusion zone can exist between the core layer and the sheath layer.
    Type: Grant
    Filed: April 2, 2008
    Date of Patent: February 14, 2012
    Assignee: American Superconductor Corporation
    Inventors: Cornelis Leo Hans Thieme, Elliott D. Thompson
  • Patent number: 8088495
    Abstract: The present invention provides a wiring material for forming wiring on a substrate by causing coalescence of conductive particles through heating, and including a binder layer and a wiring layer. The binder layer contains metal particles and having a binder function to be adhered to the substrate; and the wiring layer contains metal particles and laminated on the binder layer. The metal particles of the binder layer and the metal particles of the wiring layer are in contact with each other. With this arrangement, it is possible to provide a wiring material allowing use of a larger variety of materials, while also ensuring low resistance of wiring and improvement of adhesion between the wiring and the substrate.
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: January 3, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Akiyoshi Fujii, Toshio Tahira, Nobukazu Nagae
  • Patent number: 8084140
    Abstract: The invention provides an aqueous solution-based method for producing nanosized silver platelets, which employs the controlled mixing of a silver ion solution, a reducing solution, and an acidic solution in the presence of palladium ions.
    Type: Grant
    Filed: December 1, 2006
    Date of Patent: December 27, 2011
    Assignee: Clarkson University
    Inventors: Dan V. Goia, Brendan P. Farrell
  • Patent number: 8061580
    Abstract: A method of forming and assembling at least two parts together that may be metal, ceramic, or a combination of metal and ceramic parts. Such parts may have different CTE. Individual parts that are formed and sintered from particles leave a network of interconnecting porosity in each sintered part. The separate parts are assembled together and then a fill material is infiltrated into the assembled parts using a method such as capillary action, gravity, and/or pressure. The assembly is then cured to yield a bonded and fully or near-fully dense part that has the desired physical and mechanical properties for the part's intended purpose. Structural strength may be added to the parts by the inclusion of fibrous materials.
    Type: Grant
    Filed: November 23, 2010
    Date of Patent: November 22, 2011
    Assignee: Babcock & Wilcox Technical Services Y-12, LLC
    Inventor: Edward B. Ripley
  • Patent number: 8043716
    Abstract: Disclosed herein is a gradient thin film, formed on a substrate by simultaneously depositing different materials on the substrate using a plurality of thin film deposition apparatuses provided in a vacuum chamber, wherein the gradient thin film is formed such that the composition thereof is continuously changed depending on the thickness thereof by deposition control plates provided in the path through which the different materials move to the substrate. The gradient thin film is advantageous in that the thin film is formed by simultaneously depositing different materials using various deposition apparatuses, so that the composition thereof is continuously changed depending on the thickness thereof, with the result that the physical properties of a thin film are easily controlled and the number of deposition processes is decreased, and thus processing time and manufacturing costs are decreased, thereby improving economic efficiency.
    Type: Grant
    Filed: July 22, 2008
    Date of Patent: October 25, 2011
    Assignee: Korea Electrotechnology Research Institute
    Inventors: Ho Sup Kim, Sang Soo Oh, Tae Hyung Kim, Dong Woo Ha, Kyu Jung Song, Hong Soo Ha, Rock Kil Ko, Nam Jin Lee
  • Patent number: 7998238
    Abstract: A sintered sliding member comprises a back metal (21a) and a ferrous sintered sliding body (20) which is sintering-bonded to the back metal (21a). The ferrous sintered sliding body (20) has martensite phase having a solid soluble carbon concentration of 0.15 to 0.5 wt % and contains carbide in a content of 5 to 50% by volume. The sintered sliding member is excellent in abrasion resistance, seizing resistance and heat crack resistance.
    Type: Grant
    Filed: July 30, 2004
    Date of Patent: August 16, 2011
    Assignee: Komatsu Ltd.
    Inventors: Takemori Takayama, Tetsuo Ohnishi, Kazuo Okamura
  • Patent number: 7955706
    Abstract: A cermet armor material for highly effective ballistic performance which is comprised of a layer of base metal in which is deposited a layer or layers of ceramic and a compatible metal such that the deposited metal in combination with the base metal forms a continuous matrix around the ceramic particles. The body has a structure which is continuously graded from a highest ceramic content at the outer surface (strike face) decreasing to zero within the base substrate, and contained no abrupt interfaces.
    Type: Grant
    Filed: June 28, 2007
    Date of Patent: June 7, 2011
    Assignee: Materials & Electrochemical Research Corp.
    Inventors: James C. Withers, Roger S. Storm, Vladimir Shapovalov, Raouf Loutfy
  • Patent number: 7914629
    Abstract: The present invention provides high strength thick steel plate superior in crack arrestability high in strength, free of deterioration of HAZ toughness, and free of anisotropy, that steel plate containing, by mass %, C: 0.03 to 0.15%, Si: 0.1 to 0.5%, Mn: 0.5 to 2.0%, P: ?0.02%, S: ?0.01%, Al: 0.001 to 0.1%, Ti: 0.005 to 0.02%, Ni: 0.15 to 2%, and N: 0.001 to 0.008% and having a balance of iron and unavoidable impurities as chemical components, having a microstructure of a ferrite and/or pearlite structure with bainite as a matrix phase, and having an average circle equivalent diameter of crystal grains with a crystal misorientation angle of 15° or more of 15 ?m or less in the regions of 10% of plate thickness from the front and rear surfaces and of 40 ?m or less in the other region including the center part of plate thickness.
    Type: Grant
    Filed: April 13, 2007
    Date of Patent: March 29, 2011
    Assignee: Nippon Steel Corporation
    Inventors: Kiyotaka Nakashima, Masanori Minagawa, Kouji Ishida, Akira Ito
  • Patent number: 7914903
    Abstract: In a layered composite including a substrate comprising a number of individual layers disposed on the substrate, at least one of the individual layers includes cubic boron nitride formed by material deposition, the cubic boron nitride including oxygen added during deposition of the material.
    Type: Grant
    Filed: February 12, 2007
    Date of Patent: March 29, 2011
    Assignee: Forschungszentrum Karlsruhe GmbH
    Inventors: Sven Ulrich, Jian Ye, Konrad Sell, Michael Stüber
  • Patent number: 7910219
    Abstract: A cermet armor material for highly effective ballistic performance which is comprised of a layer of base metal in which is deposited a layer or layers of ceramic and a compatible metal such that the deposited metal in combination with the base metal forms a continuous matrix around the ceramic particles. The body has a structure which is continuously graded from a highest ceramic content at the outer surface (strike face) decreasing to zero within the base substrate, and contained no abrupt interfaces.
    Type: Grant
    Filed: June 28, 2007
    Date of Patent: March 22, 2011
    Assignee: Materials & Electrochemical Research Corp.
    Inventors: James C. Withers, Roger S. Storm, Vladimir Shapovalov, Loutfy Raouf
  • Publication number: 20110008639
    Abstract: The invention describes a method of producing a sinter-hardened component from a metallic powder containing chromium which is pre-alloyed in particular, comprising the steps of compacting the powder to form a green compact and then sintering the green compact in a reducing sintering atmosphere at a sintering temperature in excess of 1100° C. A gas containing carbon is added to the sintering atmosphere.
    Type: Application
    Filed: May 29, 2008
    Publication date: January 13, 2011
    Applicant: Miba Sinter Austria GmbH
    Inventors: Peter Orth, Gerold Stetina
  • Patent number: 7857193
    Abstract: A method of assembling two or more parts together that may be metal, ceramic, metal and ceramic parts, or parts that have different CTE. Individual parts are formed and sintered from particles that leave a network of interconnecting porosity in each sintered part. The separate parts are assembled together and then a fill material is infiltrated into the assembled, sintered parts using a method such as capillary action, gravity, and/or pressure. The assembly is then cured to yield a bonded and fully or near-fully dense part that has the desired physical and mechanical properties for the part's intended purpose. Structural strength may be added to the parts by the inclusion of fibrous materials.
    Type: Grant
    Filed: November 23, 2005
    Date of Patent: December 28, 2010
    Assignee: Babcock & Wilcox Technical Services Y-12, LLC
    Inventor: Edward B. Ripley
  • Patent number: 7854958
    Abstract: Thermal spray processing and cold spray processing are utilized to manufacture porous starting materials (such as tube stock, wire and substrate sheets) from biocompatible metals, metal alloys, ceramics and polymers that may be further processed into porous medical devices, such as stents. The spray processes are also used to form porous coatings on consolidated biocompatible medical devices. The porous substrates and coatings may be used as a reservoir to hold a drug or therapeutic agent for elution in the body. The spray-formed porous substrates and coatings may be functionally graded to allow direct control of drug elution without an additional polymer topcoat. The spray processes are also used to apply the drug or agent to the porous substrate or coating when drug or agent is robust enough to withstand the temperatures and velocities of the spray process with minimal degradation.
    Type: Grant
    Filed: March 18, 2009
    Date of Patent: December 21, 2010
    Assignee: Advanced Cardiovascular Systems, Inc.
    Inventor: Pamela A. Kramer
  • Publication number: 20100310895
    Abstract: A polycrystalline aluminum thin film is made of polycrystals of an alloy of aluminum. The polycrystalline aluminum thin film includes a first additive which is distributed with even concentration over an inside of each crystal grain and an interface of the crystal grain and a second additive which is distributed with higher concentration in the interface of the crystal grain than in the inside of the crystal grain.
    Type: Application
    Filed: June 18, 2010
    Publication date: December 9, 2010
    Applicant: Pioneer Corporation
    Inventors: Takanobu Higuchi, Yasuo Hosoda