PREPARATION OF SUPERCONDUCTING CERAMIC MATERIALS

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(11)

EP 0 312 593 A1

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(43)	Date of publication:
	26.04.1989 Bulletin 1989/17

(21)	Application number: 88905473.0

(22)	Date of filing: 21.03.1988

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International Patent Classification (IPC):

C01B 13/ 32^{( . )}
C01G 3/ 00^{( . )}
C04B 35/ 65^{( . )}
C30B 19/ 00^{( . )}
H01B 13/ 00^{( . )}
H01L 39/ 24^{( . )}

C01G 1/ 00^{( . )}
C04B 35/ 45^{( . )}
C23C 8/ 10^{( . )}
H01B 12/ 04^{( . )}
H01L 39/ 12^{( . )}

(86)	International application number:
	PCT/US1988/000892

(87)	International publication number:
	WO 1988/008338 (03.11.1988 Gazette 1988/24)

(84)	Designated Contracting States:
	AT BE CH DE FR GB IT LI LU NL SE

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Priority:

23.04.1987 US 19870042318

(71)	Applicant: ARCH DEVELOPMENT CORPORATION, The University of Chicago
	Chicago, IL 60637 (US)

(72)	Inventor:
	GRUEN, Dieter, M. Downers Grove, IL 60515 (US)

(74)	Representative: Allden, Thomas Stanley, et al
	A.A. THORNTON & CO. Northumberland House 303-306 High Holborn London WC1V 7LE London WC1V 7LE (GB)

(54)	PREPARATION OF SUPERCONDUCTING CERAMIC MATERIALS