Patents Represented by Attorney Grady J. Stroud, Stroud, Willink, Thompson & Howard Shoemaker & Mattare, Ltd. Frenchick - Justia Patents Search

Patents Represented by Attorney Grady J. Stroud, Stroud, Willink, Thompson & Howard Shoemaker & Mattare, Ltd. Frenchick

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Ceramic materials and methods of making the same comprising yttrium, barium, silver, and either selenium or sulfur

Patent number: 5518972

Abstract: Disclosed are ceramic materials and methods of making the same comprising yttrium, barium, silver, and either selenium or sulfur. Those ceramic materials show changes in magnetic susceptibility at around 373.degree. K. with selenium and 195.degree. K. with sulfur.

Type: Grant

Filed: December 21, 1993

Date of Patent: May 21, 1996

Assignee: Finch International Limited

Inventors: Basil D. Shepherd, David L. Shaw