PROCESS FOR INCREASING STRENGTH OF STRUCTURAL CERAMIC MATERIALS BY FORMING CERAMIC COATING ON SURFACE AND PRODUCT FORMED THEREBY - Patent 0636113

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EP 0 636 113 A1

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(43)	Date of publication:
	01.02.1995 Bulletin 1995/05

(21)	Application number: 93909284.0

(22)	Date of filing: 08.04.1993

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International Patent Classification (IPC):

C04B 41/ 87^{( . )}
C04B 41/ 52^{( . )}
C04B 41/ 89^{( . )}

C04B 41/ 45^{( . )}
C04B 41/ 81^{( . )}

(86)	International application number:
	PCT/US1993/003290

(87)	International publication number:
	WO 1993/021131 (28.10.1993 Gazette 1993/26)

(84)	Designated Contracting States:
	DE FR GB IT

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Priority:

14.04.1992 US 19920868608

(71)	Applicant: SRI INTERNATIONAL
	Menlo Park, California 94025-3493 (US)

(72)	Inventors:
	BLUM, Yigal, D. San Jose, CA 95129 (US) McDERMOTT, Gregory, A. San Francisco, CA 94117 (US)

(74)	Representative: Harding, Charles Thomas, et al
	D. Young & Co. 21 New Fetter Lane London EC4A 1DA London EC4A 1DA (GB)

(54)	PROCESS FOR INCREASING STRENGTH OF STRUCTURAL CERAMIC MATERIALS BY FORMING CERAMIC COATING ON SURFACE AND PRODUCT FORMED THEREBY