公开(公告)号：US20230340314A1

公开(公告)日：2023-10-26

申请号：US18245852

申请日：2021-09-27

申请人： Denka Company Limited

发明人： Koki IKARASHI ,  Nobuya SUZUKI ,  Koji NISHIMURA

IPC分类号： C09K5/14 ,  C01B21/082 ,  C04B35/583 ,  C04B35/63 ,  C04B35/64 ,  C04B41/48 ,  C04B41/83

CPC分类号： C09K5/14 ,  C01B21/0828 ,  C04B35/583 ,  C04B35/6303 ,  C04B35/64 ,  C04B41/48 ,  C04B41/83 ,  C01P2006/16 ,  C01P2006/12 ,  C01P2004/03 ,  C01P2004/61 ,  C01P2004/50 ,  C01P2006/32 ,  C04B2235/3856 ,  C04B2235/386 ,  C04B2235/5409 ,  C04B2235/5436 ,  C04B2235/9607

摘要： Provided is a boron nitride sintered body in which an average number of lump particles having a particle size of 30 μm or more formed by aggregation of primary particles of boron nitride is 3 or less in a cross-sectional image including 100 or more particles observed at a magnification of 500 times with a scanning electron microscope. A method of manufacturing a boron nitride sintered body includes a nitriding step of sintering a raw material powder containing boron carbide in a nitrogen-containing atmosphere to obtain a fired product containing boron carbonitride, a pulverizing step of pulverizing the fired product to obtain a boron carbonitride powder having a specific surface area of 12 m2/g or more, and a firing step of molding and heating a blend containing the boron carbonitride powder and a sintering aid to obtain a boron nitride sintered body.

公开(公告)号：US20230227370A1

公开(公告)日：2023-07-20

申请号：US17998690

申请日：2021-05-13

申请人： Denka Company Limited

发明人： Nobuya SUZUKI ,  Saori INOUE ,  Yasuhisa UESHIMA ,  Ryo YOSHIMATSU ,  Ryuji KOGA

IPC分类号： C04B37/02 ,  C04B35/583 ,  C04B41/83 ,  C04B41/48 ,  B32B3/26 ,  B32B9/00 ,  B32B9/04

CPC分类号： C04B37/021 ,  C04B35/583 ,  C04B41/83 ,  C04B41/4884 ,  B32B3/26 ,  B32B9/005 ,  B32B9/041 ,  C04B2237/361 ,  C04B2237/407 ,  C04B2237/52 ,  H01L33/641

摘要： One aspect of the present disclosure provides a composite body including: a nitride sintered body having a porous structure; and a semi-cured product of a thermosetting composition impregnated into the above-described nitride sintered body, in which dielectric breakdown voltage is 4.5 kV or higher.

公开(公告)号：US11634365B2

公开(公告)日：2023-04-25

申请号：US17121917

申请日：2020-12-15

申请人： RICHTER PRECISION INC.

发明人： Aghasi Torosyan ,  Hans E. Richter ,  Bikram S. Kamboj

IPC分类号： C04B35/583 ,  C04B35/622 ,  C04B35/626 ,  F41A21/22

摘要： A method of forming an activated coating composition is disclosed. The method includes providing (a) boron nitride, (b) carbon, (c) aluminum oxide and (d) a liquid carrier. Each of the boron nitride, carbon and aluminum oxide are in particulate form. The coating composition is activated to form an activated coating composition. The activated coating composition includes active components having from about 60.0 wt % to about 90.0 wt % boron nitride, from about 16 wt % to about 24 wt % carbon and from about 4 wt % to about 6 wt % aluminum oxide. A coating method, coated substrate and activated coating composition are also disclosed.

公开(公告)号：US11332411B2

公开(公告)日：2022-05-17

申请号：US16491766

申请日：2018-03-05

申请人： SAFRAN CERAMICS ,  SAFRAN

发明人： Thierry Guy Xavier Tesson ,  Maxime François Roger Carlin ,  Simon Thibaud ,  Rémy Dupont ,  Ramzi Bohli

IPC分类号： C04B35/80 ,  C23C16/04 ,  B28B1/52 ,  C04B35/52 ,  C04B35/565 ,  C04B35/583 ,  C04B35/584 ,  C04B35/628 ,  C23C16/02 ,  C04B35/14 ,  C04B35/18 ,  C04B35/573

摘要： A method for producing a consolidated fiber preform intended for the manufacture of a part made of composite material, includes shaping a fiber texture in a heated metal mold, the texture being pre-impregnated with a transient or fugitive material, or shaping a fiber texture in a metal mold and injecting a transient or fugitive material into the fiber texture held in shape in the metal mold, cooling the mold, removing the set fiber preform from the mold, coating the fiber preform with a slurry containing a powder of ceramic or carbon particles, heat-treating the coated fiber preform so as to form a porous shell around the fiber preform by consolidation of the slurry and so as to remove the transient or fugitive material present in the fiber preform, consolidating the fiber preform by gas-phase chemical infiltration.

公开(公告)号：US20220144714A1

公开(公告)日：2022-05-12

申请号：US17427277

申请日：2020-01-23

申请人： THE REGENTS OF THE UNIVERSITY OF CALIFORNIA

发明人： Xiangfeng Duan ,  Yu Huang ,  Xiang Xu

IPC分类号： C04B38/06 ,  C04B38/00 ,  C04B35/583 ,  C04B35/14 ,  C04B35/80 ,  C04B35/628

摘要： A ceramic aerogel includes a porous framework including interconnected double-paned wall structures of a ceramic material, wherein each double-paned wall structure includes a pair of walls spaced apart by a gap.

公开(公告)号：US20220098116A1

公开(公告)日：2022-03-31

申请号：US17417876

申请日：2019-12-18

申请人： MOMENTIVE PERFORMANCE MATERIALS INC.

发明人： Sudarshan NATARAJAN ,  Wei FAN ,  Xiang LIU ,  Gregory SHAFFER

IPC分类号： C04B35/583 ,  C04B35/58 ,  H05B3/14

摘要： Provided is a ceramic composite including boron nitride (BN) and titanium diboride (TiB2) for use in 2-D and 3-D heating element applications. The ceramic composite can be used in heater applications without a protective coating. The ceramic composite may be corrosion resistant against oxygen and moisture up to, for example, a temperature of 900° C., and may offer increased corrosion resistance against molten or vapor metal, including aluminum. The ceramic composite may be sufficiently rigid and may not require additional dielectric structural support. The ceramic composite may be sufficiently fracture resistant to enable machining of intricate and complex patterns and designs with a high aspect ratio of the coil length to width or thickness. The ceramic composite may be used with any heater shape, orientation, and size.

公开(公告)号：US11254820B2

公开(公告)日：2022-02-22

申请号：US16693178

申请日：2019-11-22

申请人： SAINT-GOBAIN CERAMICS & PLASTICS, INC.

发明人： Elodie Bahon ,  Pierre-Loup Judas ,  Nabil Nahas

IPC分类号： C01B21/064 ,  C09C1/00 ,  C09C3/04 ,  C08K3/38 ,  B28B11/24 ,  C04B35/583 ,  C04B18/02 ,  C04B35/626 ,  C04B35/632 ,  C04B38/00 ,  C04B35/634 ,  B01J2/10

摘要： Disclosed are methods for forming boron nitride-containing aggregates that exhibit improved wear by attrition, and resulting filled polymers that exhibit significantly improved thermal conductivity. The boron nitride-containing aggregates are prepared according to a method that includes wet granulating boron nitride powder with a granulation solution to form wet boron nitride-containing granules; and drying the wet boron nitride-containing granules to cause evaporation of solvent in the granulation solution, thereby forming boron nitride-containing granules. Sintering achieves the desired boron nitride-containing aggregates.

公开(公告)号：US20220033999A1

公开(公告)日：2022-02-03

申请号：US17504647

申请日：2021-10-19

申请人： Dynetics, Inc.

发明人： James L. Maxwell ,  Nicholas Webb ,  Ryan Hooper ,  James Allen

IPC分类号： D01F9/12 ,  D01F9/127 ,  C04B35/58 ,  C04B35/583 ,  C04B35/622 ,  C23C16/46 ,  C04B35/584 ,  C23C16/44 ,  C23C16/48 ,  C23C16/30

摘要： The disclosed materials, methods, and apparatus, provide novel ultra-high temperature materials (UHTM) in fibrous forms/structures; such “fibrous materials” can take various forms, such as individual filaments, short-shaped fiber, tows, ropes, wools, textiles, lattices, nano/microstructures, mesostructured materials, and sponge-like materials. At least four important classes of UHTM materials are disclosed in this invention: (1) carbon, doped-carbon and carbon alloy materials, (2) materials within the boron-carbon-nitride-X system, (3) materials within the silicon-carbon-nitride-X system, and (4) highly-refractory materials within the tantalum-hafnium-carbon-nitride-X and tantalum-hafnium-carbon-boron-nitride-X system. All of these material classes offer compounds/mixtures that melt or sublime at temperatures above 1800° C.—and in some cases are among the highest melting point materials known (exceeding 3000° C.). In many embodiments, the synthesis/fabrication is from gaseous, solid, semi-solid, liquid, critical, and supercritical precursor mixtures using one or more low molar mass precursor(s), in combination with one or more high molar mass precursor(s). Methods for controlling the growth, composition, and structures of UHTM materials through control of the thermal diffusion region are disclosed.

公开(公告)号：US20210221743A1

公开(公告)日：2021-07-22

申请号：US16770004

申请日：2018-03-23

申请人： Shengyi Technology Co., Ltd.

发明人： Zengbiao HUANG

IPC分类号： C04B35/583 ,  C08K5/14 ,  C08L53/02 ,  C08K5/03 ,  C08K3/36 ,  C04B35/63 ,  C08K5/00 ,  C08J5/24 ,  C01B21/064

摘要： Provided is a boron nitride agglomerate. The boron nitride agglomerate is of a multi-stage structure formed by arranging flaky hexagonal boron nitride primary particles in three-dimensional directions through adhesion of an inorganic binder. Further provided is a method for preparing the boron nitride agglomerate. The method comprises: mixing flaky hexagonal boron nitride primary particles with an inorganic binder, and controlling the mass of the inorganic binder to account for 0.02-20% of the mass of the flaky hexagonal boron nitride primary particles, so as to obtain the boron nitride agglomerate. The boron nitride agglomerate provided can be added to thermosetting resin compositions, and resin sheets, resin composite metal foil, prepregs, laminates, metal foil-covered laminates, and printed wiring boards prepared using the same have higher boron nitride addition, high thermal conductivity, and high peel strength.

公开(公告)号：US20210122118A1

公开(公告)日：2021-04-29

申请号：US17141616

申请日：2021-01-05

申请人： HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

发明人： James Elmer Abbott, JR. ,  David A. Champion ,  Fernando Juan

IPC分类号： B29C64/379 ,  B33Y10/00 ,  B29C64/165 ,  C04B35/584 ,  C04B35/185 ,  C04B35/553 ,  B32B18/00 ,  C04B35/46 ,  C04B35/486 ,  C04B35/14 ,  C04B35/053 ,  C04B35/111 ,  C04B35/583 ,  C04B35/653 ,  C04B35/495 ,  C04B35/505 ,  B33Y30/00 ,  B33Y50/02 ,  B33Y70/00 ,  B29C64/393

摘要： In example implementations, a method for extracting layers of build material into a carrier. The method includes providing a layer of build material onto a bed. Portions of the layer of build material on the bed are digitally printed with a liquid functional material (LFM). The method repeats providing the layer of build material and digitally printing without applying energy to the LFM to define a structure in layers of build material on the bed. The layers of build material are extracted into a carrier and the carrier is removed.