Method for providing crystalline silicon-containing ceramic material
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C04B-035/571
C04B-035/58
C04B-035/80
출원번호
US-0027705
(2014-09-24)
등록번호
US-9908818
(2018-03-06)
국제출원번호
PCT/US2014/057091
(2014-09-24)
국제공개번호
WO2015/053937
(2015-04-16)
발명자
/ 주소
Limarga, Andi M.
Sheedy, Paul
Schmidt, Wayde R.
Berczik, Douglas M.
Kashyap, Tania Bhatia
Hermann, Mark A.
출원인 / 주소
United Technologies Corporation
대리인 / 주소
Carlson, Gaskey & Olds, P.C.
인용정보
피인용 횟수 :
0인용 특허 :
5
초록▼
Disclosed is a method for providing a crystalline ceramic material. In an example, the method includes providing a silicon-containing preceramic polymer material that can be thermally converted to one or more crystalline polymorphs. The silicon-containing preceramic polymer material includes dispers
Disclosed is a method for providing a crystalline ceramic material. In an example, the method includes providing a silicon-containing preceramic polymer material that can be thermally converted to one or more crystalline polymorphs. The silicon-containing preceramic polymer material includes dispersed therein an effective amount of dopant particles. The silicon-containing preceramic polymer material is then thermally converted to the silicon-containing ceramic material. The effective amount of dopant particles enhance the formation of at least one of the one or more crystalline polymorphs, relative to the silicon-containing preceramic polymer without the dopant particles, with respect to at least one of formation of a selected polymorph of the one or more crystalline polymorphs formed, an amount formed of a selected polymorph of the one or more crystalline polymorphs formed, and a temperature of formation of the one or more crystalline polymorphs.
대표청구항▼
1. A method for providing a crystalline ceramic material, the method comprising: providing a silicon-containing preceramic polymer material that can be thermally converted to a silicon-containing ceramic material containing one or more crystalline polymorphs, the silicon-containing preceramic polyme
1. A method for providing a crystalline ceramic material, the method comprising: providing a silicon-containing preceramic polymer material that can be thermally converted to a silicon-containing ceramic material containing one or more crystalline polymorphs, the silicon-containing preceramic polymer material including dispersed therein an effective amount of dopant particles, wherein the dopant particles are either carbon-containing particles that are selected from the group consisting of boron carbide, nano-diamond, graphite, graphene, activated carbon, carbon nanotubes, and combinations thereof or nitride particles selected from the group consisting of gallium nitride, boron nitride, silicon nitride, and combinations thereof; andthermally converting the silicon-containing preceramic polymer material to the silicon-containing ceramic material, the effective amount of dopant particles enhancing the formation of at least one of the one or more crystalline polymorphs, relative to the silicon-containing preceramic polymer without the dopant particles, with respect to at least one of: formation of a selected polymorph of the one or more crystalline polymorphs formed,an amount formed of a selected polymorph of the one or more crystalline polymorphs formed, anda temperature of formation of the one or more crystalline polymorphs. 2. The method as recited in claim 1, wherein the silicon-containing ceramic material is silicon carbide. 3. The method as recited in claim 1, wherein the silicon-containing ceramic material is a silicon-carbon ceramic compound including an element selected from the group consisting of nitrogen, boron, oxygen and combinations thereof. 4. The method as recited in claim 1, wherein the silicon-containing preceramic polymer material includes, by weight, up to 40% of the dopant particles. 5. The method as recited in claim 1, wherein the silicon-containing preceramic polymer material includes, by weight, up to 20% of the dopant particles. 6. The method as recited in claim 1, wherein the silicon-containing preceramic polymer material includes, by weight, up to 10% of the dopant particles. 7. The method as recited in claim 6, wherein the silicon-containing preceramic polymer material includes, by weight, up to 5% of the dopant particles. 8. The method as recited in claim 1, wherein the silicon-containing ceramic material is silicon carbide, the silicon-containing preceramic polymer material includes, by weight, up to 10% of the dopant particles, and the silicon-containing preceramic polymer material is disposed within pores of a silicon carbide fiber structure. 9. The method as recited in claim 1, wherein the dopant particles are the carbon-containing particles and are selected from the group consisting of nano-diamond, graphite, graphene, activated carbon, carbon nanotubes, and combinations thereof. 10. The method as recited in claim 9, wherein the silicon-containing preceramic polymer material includes, by weight, up to 5% of the dopant particles. 11. The method as recited in claim 1, wherein the dopant particles are the nitride particles and are selected from the group consisting of gallium nitride, boron nitride, and combinations thereof. 12. The method as recited in claim 11, wherein the silicon-containing preceramic polymer material includes, by weight, up to 5% of the dopant particles.
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이 특허에 인용된 특허 (5)
Oshima Kenji (9-7-1142 Aichi JPX) Ito Tsugio (9-7-1142 Aichi JPX) Kato Yoshitsugu (9-7-1142 Aichi JPX) Niihara Koichi (9-7-1142 Kourigaoka ; Hirakata ; Osaka JPX) Nakahira Atsushi (Osaka JPX) Iwata M, Carbon fiber reinforced silicon nitride based nanocomposite material and method for preparing same.
Laine Richard M. ; Sellinger Alan ; Chew Kean Wee, Highly processable hyperbranched polymer precursors to controlled chemical and phase purity fully dense SiC.
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