Formation of silicon carbide-silicon nitride nanoparticle carbon compositions
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C04B-035/00
C04B-035/573
C01B-031/36
C04B-035/52
C04B-035/524
C04B-035/76
C04B-035/80
C04B-035/83
B82Y-030/00
C04B-035/591
출원번호
US-0281008
(2014-05-19)
등록번호
US-9045374
(2015-06-02)
발명자
/ 주소
Keller, Teddy M.
Saab, Andrew
Laskoski, Matthew
출원인 / 주소
The United States of America, as represented by the Secretary of the Navy
대리인 / 주소
US Naval Research Laboratory
인용정보
피인용 횟수 :
5인용 특허 :
4
초록▼
A composition having nanoparticles of silicon carbide and a carbonaceous matrix or silicon matrix. The composition is not in the form of a powder. A composition having silicon and an organic compound having a char yield of at least 60% by weight or a thermoset made from the organic compound. A metho
A composition having nanoparticles of silicon carbide and a carbonaceous matrix or silicon matrix. The composition is not in the form of a powder. A composition having silicon and an organic compound having a char yield of at least 60% by weight or a thermoset made from the organic compound. A method of combining silicon and the organic compound and heating to form silicon carbide or silicon nitride nanoparticles.
대표청구항▼
1. A composition comprising: elemental silicon; andan organic component selected from: an organic compound having a char yield of at least 60% by weight; anda thermoset made from the organic compound. 2. The composition of claim 1, wherein the organic compound: contains only carbon and hydrogen;cont
1. A composition comprising: elemental silicon; andan organic component selected from: an organic compound having a char yield of at least 60% by weight; anda thermoset made from the organic compound. 2. The composition of claim 1, wherein the organic compound: contains only carbon and hydrogen;contains aromatic and acetylene groups;contains only carbon, hydrogen, and nitrogen or oxygen;contains no oxygen; orcontains a heteroatom other than oxygen. 3. The composition of claim 1, wherein the organic compound is 1,2,4,5-tetrakis(phenylethynyl)benzene or a prepolymer thereof, 4,4′-diethynylbiphenyl, N,N′-(1,4-phenylenedimethylidyne)-bis-(3-ethynylaniline), dianilphthalonitrile, or resorcinol phthalonitrile or a prepolymer thereof. 4. The composition of claim 1, wherein the composition further comprises: boron. 5. The composition of claim 1, wherein the composition further comprises: fibers, carbon fibers, ceramic fibers, or metal fibers. 6. The composition of claim 1, wherein the composition is a shaped component having the silicon dispersed in the thermoset. 7. A method comprising: combining elemental silicon and an organic compound having a char yield of at least 60% by weight to form a precursor mixture. 8. The method of claim 7, further comprising: placing the precursor mixture into a mold or shaped reactor. 9. The method of claim 7, further comprising: forming the precursor mixture into a shaped component. 10. The method of claim 7, further comprising: heating the precursor mixture in an inert atmosphere or vacuum at a temperature that causes polymerization of the organic compound to a thermoset to form a thermoset composition. 11. The method of claim 10, wherein heating the precursor mixture is performed at 150-600° C. 12. The method of claim 10, further comprising: heating the thermoset composition in an inert atmosphere, argon, nitrogen, or vacuum at a temperature that causes formation of a carbonized thermoset having silicon embedded therein. 13. The method of claim 12, wherein heating the thermoset composition is performed at 600-1400° C. 14. The method of claim 10, further comprising: heating the thermoset composition in an inert atmosphere, argon, nitrogen, or vacuum at a temperature that causes formation of a ceramic comprising nanoparticles of silicon carbide or silicon nitride in a carbonaceous matrix or silicon matrix. 15. The method of claim 14; wherein the precursor mixture further comprises boron; andwherein heating the thermoset composition causes formation of nanoparticles of silicon boron carbide. 16. The method of claim 14, wherein heating the thermoset composition is performed at 1400-1900° C. 17. The method of claim 14, wherein heating the thermoset composition is performed at greater than 1900° C. 18. The method of claim 14, wherein heating the thermoset composition is performed above the melting point of the silicon. 19. A method comprising: providing a precursor mixture of elemental silicon and an organic compound;heating the precursor mixture in an inert atmosphere or vacuum at elevated pressure and at a temperature that causes polymerization of the organic compound to a thermoset to form a thermoset composition; andheating the thermoset composition in an inert atmosphere, argon, nitrogen, or vacuum at a temperature that causes formation of a ceramic comprising nanoparticles of silicon carbide or silicon nitride in a carbonaceous matrix or silicon matrix; wherein the organic compound has a char yield of at least 60% by weight when heated at the elevated pressure.
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이 특허에 인용된 특허 (4)
Keller Teddy M. ; Jones Kenneth M., Aromatic acetylenes as carbon precursors.
Waggoner, W. Michael; Rossing, Barry R; Rossing, legal representative, Marlene; Richmond, Michael A; Aghajanian, Michael K; McCormick, Allyn L, Silicon-containing composite bodies, and methods for making same.
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