Patents Assigned to Morgan Advanced Ceramics, Inc.
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Patent number: 11673842Abstract: A method of forming one or more high temperature co-fired ceramic articles, comprising the steps of:— a) forming a plurality of green compacts, by a process comprising dry pressing a powder comprising ceramic and organic binder to form a green compact; b) disposing a conductor or conductor precursor to at least one surface of at least one of the plurality of green compacts to form at least one patterned green compact; c) assembling the at least one patterned green compact with one or more of the plurality of green compacts or patterned green compacts or both to form a laminated assembly; d) isostatically pressing the laminated assembly to form a pressed laminated assembly; e) firing the pressed laminated assembly at a temperature sufficient to sinter the ceramic layers together.Type: GrantFiled: March 1, 2021Date of Patent: June 13, 2023Assignee: Morgan Advanced Ceramics, Inc.Inventors: Samuel H. Ahrendes, Gary D. Harland, Chengtsin Lee, Edward Tomasek, George York
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Patent number: 11583960Abstract: The present invention relates to an article comprising a ceramic substrate (310) comprising a source of zirconium oxide; a metallic substrate (320); and a braze joint disposed between the ceramic substrate and the metallic substrate. The braze joint comprises (i) a gold rich phase (330) interfacing against a surface of the ceramic substrate. The gold rich phase comprises a refractory metal selected from the group consisting of molybdenum, tungsten, niobium, tantalum and combinations thereof; and (ii) a second metallic phase (340) comprising a metal selected form the group consisting of nickel, iron, vanadium, cobalt, chromium, osmium, tantalum or combinations thereof.Type: GrantFiled: September 24, 2020Date of Patent: February 21, 2023Assignee: Morgan Advanced Ceramics, Inc.Inventors: Abhishek S. Patnaik, John Antalek, Vishwanath Sarkar
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Patent number: 11535550Abstract: Articles may be protected against halide plasma, by applying a rare earth-containing glaze to the surface of the article. The glaze may be a coating comprising; 20 to 90 mol % SiO2, 0 to 60 mol % Al2O3, 10 to 80 mol % rare earth oxides and/or rare earth fluorides (REX), wherein SiO2+Al2O3+REX?60 mol %.Type: GrantFiled: November 2, 2017Date of Patent: December 27, 2022Assignee: Morgan Advanced Ceramics, Inc.Inventor: Chengtsin Lee
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Publication number: 20220199451Abstract: A layer arrangement for an electrostatic chuck comprises a first ceramic layer; a second ceramic layer; a metallised layered disposed between the first and second ceramic layers. The first ceramic layer comprises at least 90.0 wt % 5 alumina, titania, ZrO2, Y2O3, AlN, Si3N4, SiC, transition metal oxides or combinations thereof; and in the range of 0.1 to 10.0 wt % tantalum oxide (Ta2O5).Type: ApplicationFiled: April 10, 2020Publication date: June 23, 2022Applicant: Morgan Advanced Ceramics, Inc.Inventor: Chengtsin Lee
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Patent number: 11123957Abstract: A brazed article comprising a ceramic component, a metallizing layer comprising tungsten and yttrium oxide disposed against a surface of the ceramic component, and a bonding layer disposed between the metallizing layer and a metal component wherein said bonding layer comprises a nickel-rich portion proximal to the ceramic component and a gold-rich portion interfacing against the metal component.Type: GrantFiled: December 9, 2020Date of Patent: September 21, 2021Assignee: Morgan Advanced Ceramics, Inc.Inventors: Abhishek S. Patnaik, John Antalek, Heather Michaud
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Patent number: 11091398Abstract: A method of forming one or more high temperature co-fired ceramic articles, comprising the steps of:— a) forming a plurality of green compacts, by a process comprising dry pressing a powder comprising ceramic and organic binder to form a green compact; b) disposing a conductor or conductor precursor to at least one surface of at least one of the plurality of green compacts to form at least one patterned green compact; c) assembling the at least one patterned green compact with one or more of the plurality of green compacts or patterned green compacts or both to form a laminated assembly; d) isostatically pressing the laminated assembly to form a pressed laminated assembly; e) firing the pressed laminated assembly at a temperature sufficient to sinter the ceramic layers together.Type: GrantFiled: March 31, 2020Date of Patent: August 17, 2021Assignee: Morgan Advanced Ceramics, Inc.Inventors: Samuel H. Ahrendes, Gary D. Harland, Chengtsin Lee, Edward Tomasek, George York
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Publication number: 20210176862Abstract: A feedthrough assembly (1) comprising a feedthrough body (10) comprising: a ceramic body (2) having a first side (3) and a second side (4); a conductive element (5) extending through said ceramic body (2) between said first side (3) and said second side (4); a conductive pad (6) electrically connected to said conductive element (5).Type: ApplicationFiled: December 9, 2020Publication date: June 10, 2021Applicant: Morgan Advanced Ceramics, Inc.Inventors: Abhishek S. Patnaik, John Antalek
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Publication number: 20210170721Abstract: A brazed article comprising a ceramic component, a metallizing layer comprising tungsten and yttrium oxide disposed against a surface of the ceramic component, and a bonding layer disposed between the metallizing layer and a metal component wherein said bonding layer comprises a nickel-rich portion proximal to the ceramic component and a gold-rich portion interfacing against the metal component.Type: ApplicationFiled: December 9, 2020Publication date: June 10, 2021Applicant: Morgan Advanced Ceramics, Inc.Inventors: Abhishek S. Patnaik, John Antalek, Heather Michaud
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Publication number: 20210146142Abstract: There is provided a feedthrough including a ceramic body; and a plurality of electrical conductors embedded in the ceramic body. Wherein the density of the electrical conductors exceeds 1 conductor per 23 thou2 (14,839 ?m2) through a planar cross-section of the ceramic body.Type: ApplicationFiled: April 18, 2019Publication date: May 20, 2021Applicant: Morgan Advanced Ceramics, Inc.Inventors: Abhishek S. Patnaik, John Antalek, Mark Schmeckpeper, Abhaya Bakshi, Robert Mackinnon
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Publication number: 20210086312Abstract: The present invention relates to an article comprising a ceramic substrate (310) comprising a source of zirconium oxide; a metallic substrate (320); and a braze joint disposed between the ceramic substrate and the metallic substrate. The braze joint comprises (i) a gold rich phase (330) interfacing against a surface of the ceramic substrate. The gold rich phase comprises a refractory metal selected from the group consisting of molybdenum, tungsten, niobium, tantalum and combinations thereof; and (ii) a second metallic phase (340) comprising a metal selected form the group consisting of nickel, iron, vanadium, cobalt, chromium, osmium, tantalum or combinations thereof.Type: ApplicationFiled: September 24, 2020Publication date: March 25, 2021Applicant: Morgan Advanced Ceramics, Inc.Inventors: Abhishek S. Patnaik, John Antalek, Vishwanath Sarkar
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Publication number: 20200231509Abstract: A method of forming one or more high temperature co-fired ceramic articles, comprising the steps of: a) forming a plurality of green compacts, by a process comprising dry pressing a powder comprising ceramic and organic binder to form a green compact; b) disposing a conductor or conductor precursor to at least one surface of at least one of the plurality of green compacts to form at least one patterned green compact; c) assembling the at least one patterned green compact with one or more of the plurality of green compacts or patterned green compacts or both to form a laminated assembly; d) isostatically pressing the laminated assembly to form a pressed laminated assembly; e) firing the pressed laminated assembly at a temperature sufficient to sinter the ceramic layers together.Type: ApplicationFiled: March 31, 2020Publication date: July 23, 2020Applicant: Morgan Advanced Ceramics, Inc.Inventors: Samuel H. Ahrendes, Gary D. Harland, Chengtsin Lee, Edward Tomasek, George York
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Patent number: 10124443Abstract: Brazing alloy wire formed from a composite comprising a sheath of at least one ductile first phase and a core comprising particles of a different composition to the sheath, in which: the sheath has an annealing temperature in degrees K the particles have a melting point at least 20% above the annealing temperature of the sheath the particles have a size distribution in which 25% by weight or less comprise particles less than 25 ?m in size the particles are discrete.Type: GrantFiled: February 19, 2015Date of Patent: November 13, 2018Assignee: Morgan Advanced Ceramics, Inc.Inventors: Mark Miklos, Abdelouahab Ziani
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Publication number: 20180169796Abstract: A process for joining articles comprises the steps of: joining the articles together at a brazing temperature to form one or more brazed joints in a brazed assembly, wherein at least one of the one or more brazed joints comprises a filler at least in part capable of age hardening at a temperature below the brazing temperature; and heat treating the brazed assembly at a temperature and for a time sufficient to age harden the filler at least in part; wherein the articles comprise at least one diamond body, and the filler comprises an active brazing alloy for brazing to the at least one diamond body.Type: ApplicationFiled: June 6, 2016Publication date: June 21, 2018Applicant: Morgan Advanced Ceramics, Inc.Inventors: Richard Angus Clark, Toshimasa Oyama, David Earl Slutz, Jaspal Singh Kamboj, Edgar Giovanni Vanegas-Hurtado
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Publication number: 20170282269Abstract: Disclosed is a method of brazing articles together to form at least one braze defined by complementarily curved faying surfaces on the articles, the faying surfaces each having at least one region of curvature comprising at least one point from which the surface curves in more than one direction, the method comprising the steps of: a) disposing between the complementarily curved faying surfaces at least one amorphous brazing alloy preform of complementary curvature at least in part to said at least one region of the complementarily curved faying surfaces to conform to the complementarily curved faying surfaces in said region; and b) heating the articles and at least one amorphous brazing alloy preform to a brazing temperature at which the amorphous brazing alloy flows and brazes. and brazing alloy preforms for use in such methods.Type: ApplicationFiled: August 25, 2015Publication date: October 5, 2017Applicant: Morgan Advanced Ceramics, Inc.Inventors: Alan DEMMONS, Keith FERGUSON, Anthony ARENA
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Publication number: 20170057880Abstract: A method of forming one or more high temperature co-fired ceramic articles, comprising the steps of: —a) forming (34) a plurality of green compacts, by a process comprising dry pressing a powder comprising ceramic and organic binder to form a green compact; b) disposing (38) a conductor or conductor precursor to at least one surface of at least one of the plurality of green compacts to form at least one patterned green compact; c) assembling the at least one patterned green compact with one or more of the plurality of green compacts or patterned green compacts or both to form a laminated assembly; d) isostatically (40) pressing the laminated assembly to form a pressed laminated assembly; e) firing (42) the pressed laminated assembly at a temperature sufficient to sinter the ceramic layers together.Type: ApplicationFiled: May 7, 2015Publication date: March 2, 2017Applicant: Morgan Advanced Ceramics, Inc.Inventors: Samuel H. Ahrendes, Gary D. Harland, Chengtsin Lee, Edward Tomasek, George Albert York, III
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Publication number: 20170008130Abstract: Brazing alloy wire formed from a composite comprising a sheath of at least one ductile first phase and a core comprising particles of a different composition to the sheath, in which: the sheath has an annealing temperature in degrees K the particles have a melting point at least 20% above the annealing temperature of the sheath the particles have a size distribution in which 25% by weight or less comprise particles less than 25 ?m in size the particles are discreteType: ApplicationFiled: February 19, 2015Publication date: January 12, 2017Applicant: Morgan Advanced Ceramics, Inc.Inventors: Mark Miklos, Abdelouahab Ziani
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Patent number: 8698006Abstract: A hermetic interconnect for medical devices is disclosed. In one embodiment, the interconnect includes platinum leads co-fired between alumina substrates to form a monolithic composite that is subsequently bonded into a titanium alloy flange. Both methodology for forming these interconnects as well as specific geometries and compositions are disclosed. Interconnects formed in this fashion enable significant reductions in overall size of the interconnect relative to the number of feedthrough leads as well as substantial improvements in robustness versus currently available technology.Type: GrantFiled: June 4, 2010Date of Patent: April 15, 2014Assignee: Morgan Advanced Ceramics, Inc.Inventors: David Joseph Bealka, Christien Matthew Vaillancourt, Fred Michael Kimock, Emma Claire Gill
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Patent number: 8114505Abstract: Improved methods for manufacturing silicon carbide rings using chemical vapor deposition. Cylindrical tubes are used as deposition substrates and the resulting material deposited on the inside surface of cylindrical tubes or on the outside surface of cylindrical mandrels, or both, is sliced or cut into the desired ring size and shape. The resulting rings have a crystal growth that is oriented substantially planar to the finished article. The invention also relates to nitrogen doped silicon carbide material, as well as to silicon carbide structures having axes of grain growth substantially parallel to the plane of the structure and to each other, and having rotational orientation that is substantially random with respect to the axes of grain growth of the grains.Type: GrantFiled: May 19, 2010Date of Patent: February 14, 2012Assignee: Morgan Advanced Ceramics, Inc.Inventors: David Thomas Forrest, Mark Wallace Schauer
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Patent number: 8030219Abstract: A coated substrate product is described comprising a substrate and a dielectric coating material comprising carbon, hydrogen, silicon, and oxygen. According to the method, the substrate is processed by plasma cleaning the surface and then depositing a dielectric coating by a suitable plasma process. The coating may contain one or more layers. The substrate may be a rigid material or a thin film or foil. The coated products of this invention have superior dielectric material properties and utility as substrates for the manufacture of rolled or parallel plate capacitors with high energy densities.Type: GrantFiled: February 7, 2006Date of Patent: October 4, 2011Assignees: Morgan Advanced Ceramics, Inc., K Systems CorporationInventors: Fred M. Kimock, Steven J. Finke, Richard L. C. Wu
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Publication number: 20110220285Abstract: Embodiments of the present invention provide methods for forming a hardened and roughened ceramic component. Specific steps include forming a sintered ceramic component, texturing the surface of the sintered ceramic component, and firing the component to harden it. The resulting ceramic component may have a textured surface, and in a specific embodiment, the textured surface has a roughness of about 100 to about 2000 ?in Ra.Type: ApplicationFiled: February 11, 2011Publication date: September 15, 2011Applicant: MORGAN ADVANCED CERAMICS, INC.Inventors: Cheng-Tsin Lee, Ho Ouk, Gary D. Harland, Edward Tomasek