公开(公告)号：US12116320B2

公开(公告)日：2024-10-15

申请号：US17436238

申请日：2020-03-05

Applicant: KURARAY NORITAKE DENTAL INC.

Inventor： Yasutaka Kudo

IPC: C04B35/488 ,  C04B35/64 ,  C09K11/02

CPC classification number: C04B35/488 ,  C04B35/64 ,  C09K11/02 ,  C04B2235/3246 ,  C04B2235/5454 ,  C04B2235/656 ,  C04B2235/661 ,  C04B2235/76 ,  C04B2235/762 ,  C04B2235/765 ,  C04B2235/96 ,  C04B2235/9646 ,  C04B2235/9653 ,  C04B2235/9661

Abstract: A zirconia sintered body may excel in translucency, strength, and linear light transmittance with no use of an HIP device, and a zirconia molded body and a zirconia pre-sintered body from which such a zirconia sintered body can be obtained. A zirconia molded body may include zirconia particles with 2.0 to 9.0 mol % yttria, an average primary particle diameter of 60 nm or less, and 0.5 mass % or less zirconia particles having a particle diameter >100 nm, wherein the zirconia molded body has ΔL*(W−B) of 5+ through a thickness of 1.5 mm. A zirconia pre-sintered body may include 2.0 to 9.0 mol % yttria, and have a ΔL*(W−B) of 5+ through a thickness of 1.5 mm. A zirconia sintered body may include: a fluorescent agent; 2.0 to 9.0 mol % yttria, and have a linear light transmittance of 1% or more through a thickness of 1.0 mm.

公开(公告)号：US20240308918A1

公开(公告)日：2024-09-19

申请号：US18576020

申请日：2022-07-01

Applicant: Heraeus Conamic North America LLC

Inventor： Luke WALKER ,  Matthew Joseph DONELON

IPC: C04B35/505 ,  C04B35/626 ,  C04B35/645 ,  C04B38/00 ,  H01J37/32

CPC classification number: C04B35/505 ,  C04B35/62645 ,  C04B35/645 ,  C04B38/0054 ,  H01J37/32495 ,  C04B2235/3225 ,  C04B2235/3246 ,  C04B2235/5409 ,  C04B2235/612 ,  C04B2235/656 ,  C04B2235/6581 ,  C04B2235/662 ,  C04B2235/666 ,  C04B2235/762 ,  C04B2235/785 ,  C04B2235/786

Abstract: Disclosed is a ceramic sintered body comprising yttrium oxide and zirconium oxide wherein the ceramic sintered body comprises not less than 75 mol % to not greater than 95 mol % yttrium oxide and not less than 5 mol % to not greater than 25 mol % zirconium oxide, wherein the ceramic sintered body comprises porosity in an amount of less than 2% by volume, wherein a density of the ceramic sintered body does not vary by more than 2% relative to theoretical density across a greatest dimension. The ceramic sintered body has a grain size of from 0.4 to less than 2 um as measured according to ASTM E1 12-2010. The ceramic sintered body may be machined into plasma resistant components for use in plasma processing chambers. Methods of making are also disclosed.

公开(公告)号：US20240300859A1

公开(公告)日：2024-09-12

申请号：US18562976

申请日：2022-05-25

Applicant: TOSOH CORPORATION

Inventor： Tomotaka SHIMOYAMA ,  Yasunori KURAMOTO

IPC: C04B35/488 ,  A61C7/14 ,  C04B35/64

CPC classification number: C04B35/488 ,  A61C7/14 ,  C04B35/64 ,  C04B2235/3225 ,  C04B2235/3227 ,  C04B2235/3246 ,  C04B2235/6565 ,  C04B2235/762 ,  C04B2235/765 ,  C04B2235/9653

Abstract: There are provided a sintered body having both excellent mechanical strength and translucency, a method for producing the same and an orthodontic bracket.
A sintered body, comprising a crystal grain having a cubic domain and a tetragonal domain, a stabilizer and lanthanum being dissolved in zirconia to form a solid solution as a matrix, and the amount of stabilizer contained being 1% or more by mole and 6% or less by mole, in which an average torque strength is 1.00 kgf·cm or more, and an in-line transmittance is 35% or more for visible light having a wavelength of 600 nm at a sample thickness of 1 mm.

公开(公告)号：US20240254054A1

公开(公告)日：2024-08-01

申请号：US18425423

申请日：2024-01-29

Applicant: JAPAN ULTRA-HIGH TEMPERATURE MATERIALS RESEARCH CENTER

Inventor： Hironaga IGUCHI ,  Hideki OHTSUBO ,  Norifumi MIYAMOTO ,  Ryoichi MIYAUCHI ,  Yuki IZUMICHI ,  Narihito NAKAGAWA

IPC: C04B35/622

CPC classification number: C04B35/62236 ,  C04B2235/3244 ,  C04B2235/5224 ,  C04B2235/5264 ,  C04B2235/762

Abstract: Provided is a eutectic ceramic fiber which has high tensile strength and whose microstructure is not easily coarsened even in a case where the eutectic ceramic fiber is exposed to high temperature air for a long time. The eutectic ceramic fiber includes a Y3Al5O12 matrix and rod-shaped Y2O3-containing cubic crystals of ZrO2 present in such a manner as to be dispersed in the Y3Al5O12 matrix. The Y3Al5O12 matrix is a continuous phase, and the rod-shaped Y2O3-containing cubic crystals of ZrO2 are oriented in a longitudinal direction of the eutectic ceramic fiber.

公开(公告)号：US11958782B2

公开(公告)日：2024-04-16

申请号：US18029811

申请日：2022-03-08

Applicant: SUMITOMO ELECTRIC HARDMETAL CORP.

Inventor： Kento Yamada ,  Machiko Abe ,  Hironari Moroguchi ,  Akihiko Ueda ,  Satoru Kukino

IPC: C04B35/5831

CPC classification number: C04B35/5831 ,  C04B2235/3217 ,  C04B2235/386 ,  C04B2235/762 ,  C04B2235/781 ,  C04B2235/785

Abstract: A cubic boron nitride sintered material comprising cubic boron nitride grains, a binder phase, and a void, in which a percentage of the cubic boron nitride grains based on the total of the cubic boron nitride grains and the binder phase is 40 vol % to 70 vol %, a percentage of the binder phase based on the total of the cubic boron nitride grains and the binder phase is 30 vol % to 60 vol %, the binder phase includes 10 vol % to 100 vol % of aluminum oxide grains, an average grain size of the aluminum oxide grains is 50 to 250 nm, the cubic boron nitride sintered material comprises 0.001 vol % to 0.100 vol % of one or more first voids, and at least one portion of each of the first voids is in contact with the aluminum oxide grains.

公开(公告)号：US11866372B2

公开(公告)日：2024-01-09

申请号：US17316187

申请日：2021-05-10

Applicant: Saudi Arabian Oil Company ,  Chengdu Dongwei Technology Co., LTD

Inventor： Guodong Zhan ,  Timothy E. Moellendick ,  Bodong Li ,  Duanwei He

IPC: C04B35/5831 ,  C04B35/645 ,  B24B19/04

CPC classification number: C04B35/5831 ,  B24B19/04 ,  C04B35/645 ,  C04B2235/386 ,  C04B2235/612 ,  C04B2235/6562 ,  C04B2235/6565 ,  C04B2235/762 ,  C04B2235/767

Abstract: Systems and methods include a computer-implemented method can be used to make drilling tools from new wurtzite boron nitride (w-BN) superhard material. An ultra-high-pressure, high-temperature operation is performed on pure w-BN powder to synthesize w-BN and cubic boron nitride (c-BN) compact having a first size greater than particles of the pure w-BN powder. The ultra-high-pressure, high-temperature operation includes pressurizing the w-BN powder to a pressure of approximately 20 Gigapascal, heating the w-BN powder at a heating rate of 100° C./minute and cooling the w-BN powder at a cooling rate of 50° C./minute. The compact is cut to a second size smaller than the first size using laser cutting tools. The cut compact is bonded metallurgically, mechanically, or both metallurgically and mechanically onto a tool substrate to form the drilling tool.

公开(公告)号：US11813677B1

公开(公告)日：2023-11-14

申请号：US18026148

申请日：2022-08-30

Applicant: Sumitomo Electric Industries, Ltd.

Inventor： Fumiyoshi Kobayashi ,  Anongsack Paseuth ,  Haruko Harada

IPC: B23B27/14 ,  C04B35/58

CPC classification number: B23B27/14 ,  C04B35/58021 ,  B23B2228/10 ,  C04B2235/3856 ,  C04B2235/728 ,  C04B2235/762 ,  C04B2235/78

Abstract: A cutting tool including a substrate and a coating film disposed on the substrate, wherein the cutting tool includes: a rake face; a flank face contiguous to the rake face; and a cutting edge region composed of a boundary part between the rake face and the flank face, wherein the coating film includes a TiSiCN layer, the TiSiCN layer has: a first TiSiCN layer positioned in the rake face; and a second TiSiCN layer positioned in the cutting edge region, the first TiSiCN layer has a composition of Ti(1-Xr)SiXrCN, the second TiSiCN layer has a composition of Ti(1-Xe)SiXeCN, and the Xr and the Xe each represent 0.010 or more and 0.100 or less, and satisfy a relationship of Xe-Xr≥0.003.

公开(公告)号：US20230312423A1

公开(公告)日：2023-10-05

申请号：US17917880

申请日：2021-04-08

Applicant: FERROTEC MATERIAL TECHNOLOGIES CORPORATION

Inventor： Wataru YAMAGISHI ,  Kazumasa MORI ,  Shunichi ETO

IPC: C04B35/584 ,  G01R1/073 ,  G01R1/04 ,  C04B35/48

CPC classification number: C04B35/584 ,  G01R1/07371 ,  G01R1/0433 ,  C04B35/48 ,  C04B2235/3244 ,  C04B2235/3873 ,  C04B2235/762 ,  C04B2235/9607 ,  C04B2235/945

Abstract: A ceramic containing, in mass %:



Si3N4: 20.0 to 60.0%,
ZrO2: 25.0 to 70.0%,
at least one selected from SiC and AlN: 2.0 to 17.0%, where AlN is 10.0% or less,
at least one selected from MgO, Y2O3, CeO2, CaO, HfO2, TiO2, Al2O3, SiO2, MoO3, CrO, CoO, ZnO, Ga2O3, Ta2O5, NiO and V2O5: 5.0 to 15.0%, wherein Fn calculated from the following equation (1) satisfies 0.02 to 0.40. This ceramic can be laser machined with high efficiency.






Fn=(SiC+3AlN)/(Si3N4+ZrO2)  (1)

公开(公告)号：US20230286869A1

公开(公告)日：2023-09-14

申请号：US18029811

申请日：2022-03-08

Applicant: SUMITOMO ELECTRIC HARDMETAL CORP.

Inventor： Kento YAMADA ,  Machiko ABE ,  Hironari MOROGUCHI ,  Akihiko UEDA ,  Satoru KUKINO

IPC: C04B35/5831

CPC classification number: C04B35/5831 ,  C04B2235/3217 ,  C04B2235/386 ,  C04B2235/762 ,  C04B2235/781 ,  C04B2235/785

Abstract: A cubic boron nitride sintered material comprising cubic boron nitride grains, a binder phase, and a void, in which a percentage of the cubic boron nitride grains based on the total of the cubic boron nitride grains and the binder phase is 40 vol % to 70 vol %, a percentage of the binder phase based on the total of the cubic boron nitride grains and the binder phase is 30 vol % to 60 vol %, the binder phase includes 10 vol % to 100 vol % of aluminum oxide grains, an average grain size of the aluminum oxide grains is 50 to 250 nm, the cubic boron nitride sintered material comprises 0.001 vol % to 0.100 vol % of one or more first voids, and at least one portion of each of the first voids is in contact with the aluminum oxide grains.

公开(公告)号：US10053390B2

公开(公告)日：2018-08-21

申请号：US15230840

申请日：2016-08-08

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Frank Hershkowitz ,  ChangMin Chun ,  Paul F. Keusenkothen ,  Shiun Ling ,  Gary D. Mohr

IPC: C04B35/488 ,  C04B35/486 ,  C04B35/505 ,  B01J4/00 ,  B01J8/04 ,  B01J19/02 ,  B01J19/24 ,  C10G1/02 ,  C10G9/00 ,  C10G9/18 ,  C10G9/26 ,  C10G75/00

CPC classification number: C04B35/488 ,  B01J4/002 ,  B01J8/0438 ,  B01J8/0442 ,  B01J8/0492 ,  B01J19/02 ,  B01J19/2485 ,  B01J2208/00115 ,  B01J2208/00309 ,  B01J2208/00504 ,  B01J2208/0084 ,  B01J2208/00849 ,  B01J2219/00081 ,  B01J2219/00117 ,  B01J2219/00157 ,  B01J2219/00159 ,  B01J2219/0263 ,  C04B35/486 ,  C04B35/505 ,  C04B2235/3206 ,  C04B2235/3208 ,  C04B2235/3217 ,  C04B2235/3224 ,  C04B2235/3225 ,  C04B2235/3227 ,  C04B2235/3229 ,  C04B2235/3232 ,  C04B2235/3239 ,  C04B2235/3241 ,  C04B2235/3244 ,  C04B2235/3246 ,  C04B2235/3251 ,  C04B2235/3256 ,  C04B2235/3258 ,  C04B2235/3262 ,  C04B2235/3272 ,  C04B2235/3275 ,  C04B2235/3279 ,  C04B2235/3418 ,  C04B2235/528 ,  C04B2235/5296 ,  C04B2235/5436 ,  C04B2235/5445 ,  C04B2235/5472 ,  C04B2235/5481 ,  C04B2235/6021 ,  C04B2235/658 ,  C04B2235/6584 ,  C04B2235/72 ,  C04B2235/762 ,  C04B2235/77 ,  C04B2235/96 ,  C04B2235/9607 ,  C04B2235/9669 ,  C04B2235/9684 ,  C10G1/02 ,  C10G9/00 ,  C10G9/005 ,  C10G9/18 ,  C10G9/26 ,  C10G75/00 ,  Y02P20/582

Abstract: In one aspect, the invention includes a reactor apparatus for pyrolyzing a hydrocarbon feedstock, the apparatus including: a reactor component comprising a refractory material in oxide form, the refractory material having a melting point of at least 2060° C. and which remains in oxide form when exposed to a gas having an oxygen partial pressure of 10−15 bar, a carbon partial pressure above the carbon partial pressure of the zirconium carbide and zirconium oxide phase transition at the same temperature, and at temperatures below the temperature of the zirconium triple point at the oxygen partial pressure of 10−15 bar; and ii) when exposed to a gas having an oxygen partial pressure of 10−15 bar and at temperatures above the zirconium triple point at the oxygen partial pressure of 10−15 bar. In some embodiments, the reactor comprises a regenerative pyrolysis reactor apparatus and in other embodiments it includes a reverse flow regenerative reactor apparatus. In other aspects, this invention includes a method for pyrolyzing a hydrocarbon feedstock using a pyrolysis reactor system comprising the step of providing in a heated region of a pyrolysis reactor system for pyrolyzing a hydrocarbon feedstock, apparatus comprising the above refractory material.