Patent number: 5427601
Abstract: A sintered metal body is disclosed of composition consisting essentially of in weight percent about 5 to 40 Cr, about 2 to 30 Al, 0 to about 5 special metal, 0 to about 4 rare earth oxide additive, and the balance Fe group metal and unavoidable impurities,the composition including at least one component selected from component A and/or component B, component A being special metal, and component B being at least an effective amount of rare earth oxide additive,the special metal being a first special metal component, and optionally, a second special metal component when rare earth oxide additive is 0, the first special metal component consisting of at least one of: Y, lanthanides, Zr, Hf, Ti, Si, and B, and the second special metal component consisting of at least one of: alkaline earth metal, Cu, and Sn, and the special metal being a third special metal component when rare earth oxide additive is >0, the third special metal component consisting of at least one of Y, lanthanides, Zr, Hf, Ti, Si, alkaline ear
Type:
Grant
Filed:
September 30, 1991
Date of Patent:
June 27, 1995
Assignees:
NGK Insulators, Ltd., Corning Inc.
Inventors:
Takashi Harada, Yoshihiro Fujiwara, Fumio Abe, Tsuneaki Ohashi, Hiroshige Mizuno, Kevin R. Brundage, Srinivas H. Swaroop, David F. Thompson, Raja R. Wusirika, David S. Weiss