Lightweight high performance ceramic material
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IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C04B-035/563
C04B-035/58
출원번호
US-0466491
(2006-08-23)
등록번호
US-7419925
(2008-09-02)
발명자
/ 주소
Nunn,Stephen D
출원인 / 주소
UT Battelle, LLC
대리인 / 주소
Marasco,Joseph A.
인용정보
피인용 횟수 :
3인용 특허 :
11
초록▼
A sintered ceramic composition includes at least 50 wt. % boron carbide and at least 0.01 wt. % of at least one element selected from the group consisting of Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy Ho, Er, Tm, Yb, and Lu, the sintered ceramic composition being characterized by a density of at least 90
A sintered ceramic composition includes at least 50 wt. % boron carbide and at least 0.01 wt. % of at least one element selected from the group consisting of Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy Ho, Er, Tm, Yb, and Lu, the sintered ceramic composition being characterized by a density of at least 90% of theoretical density.
대표청구항▼
What is claimed is: 1. A sintered ceramic composition comprising at least 50 wt. % boron carbide, zirconium diboride in an amount in the range of 1 wt. % to 10 wt. %, and at least 0.04 wt. % of at least one element selected from the group consisting of Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy Ho, Er,
What is claimed is: 1. A sintered ceramic composition comprising at least 50 wt. % boron carbide, zirconium diboride in an amount in the range of 1 wt. % to 10 wt. %, and at least 0.04 wt. % of at least one element selected from the group consisting of Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy Ho, Er, Tm, Yb, and Lu, said sintered ceramic composition having a density of at least 90% of theoretical density. 2. A sintered ceramic composition in accordance with claim 1 wherein said at least one element comprises at least 0.1 wt. % of said sintered ceramic composition. 3. A sintered ceramic composition in accordance with claim 2 wherein said at least one element comprises at least 1 wt. % of said sintered ceramic composition. 4. A sintered ceramic composition in accordance with claim 1 wherein said sintered ceramic composition has a density of at least 95% of theoretical density. 5. A sintered ceramic composition in accordance with claim 4 wherein said sintered ceramic composition has a density of at least 98% of theoretical density. 6. A sintered ceramic composition in accordance with claim 5 wherein said sintered ceramic composition has a density of at least 99.5% of theoretical density. 7. A sintered ceramic composition in accordance with claim 6 wherein said sintered ceramic composition has a density of 100% of theoretical density. 8. A sintered ceramic composition in accordance with claim 1 further comprising at least one additional element selected from the group consisting of Li, Mg, Al, Si, Ca, Sc, Sr, Ti, V, Zr, Nb, Mo, Hf, Ta, and W in an amount of at least 0.04 wt. %. 9. A sintered ceramic composition in accordance with claim 8 wherein said at least one additional element comprises at least 0.1 wt. % of said sintered ceramic composition. 10. A sintered ceramic composition in accordance with claim 9 wherein said at least one additional element comprises at least 1 wt. % of said sintered ceramic composition.
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이 특허에 인용된 특허 (11)
Holcombe Cressie E. (Knoxville TN) Morrow Marvin S. (Kingston TN), Composite of refractory material.
Halverson Danny C. (Modesto CA) Billings Garth W. (Auburn CA) Johnston George M. (Santa Rosa CA), High neutron absorbing refractory compositions of matter and methods for their manufacture.
Halverson Danny C. (Modesto CA) Billings Garth W. (Auburn CA) Johnston George M. (Santa Rosa CA), High neutron-absorbing refractory compositions of matter and methods for their manufacture.
Mikijelj,Biljana; Victor,Georg; Schwetz,Karl A., Lightweight boron carbide materials with improved mechanical properties and process for their manufacture.
Decroix Guy M. (Chevilly-Larue FRX) Gosset Dominique (Bourg-la-Reine FRX) Kryger Bernard (Paris FRX), Neutron-absorbing material and its production process.
Sigl Lorenz (Lechaschau ATX) Thaler Hubert (Kempten DEX) Schwetz Karl-Alexander (Sulzberg DEX), Process for producing bodies based on boron carbide by pressureless sintering.
Schwetz Karl A. (Sulzberg ATX) Vogt Georg (Kempten-Sankt Mang DEX), Process for the production of dense sintered shaped articles of polycrystalline boron carbide by pressureless sintering.
Lillo, Thomas M.; Chu, Henry S.; Harrison, William M., Composite materials and bodies including silicon carbide and titanium diboride and methods of forming same.
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