Process for joining silicon nitride based ceramic bodies

Details Process for joining silicon nitride based ceramic bodies Process for joining silicon nitride based ceramic bodies

1979-03-29

1982-04-13

Crane, Daniel C.

Metal fusion bonding

Process

Diffusion type

291568R, 29420, 416241B, 264 60, 264 65, B23K 3100, B23K 3524, B23K 3538

Patent

active

043243568

ABSTRACT:
A method of joining silicon nitride based ceramic bodies is disclosed. At least one interfacing surface of shaped bodies (one or both of which may be hot-pressed or reaction-sintered) receives a layer of metallic aluminum based material. The bodies with the metallic aluminum based material therebetween are subjected to heating at 1400.degree.1900.degree. C. for a period typically 0.5-2 hours in a nitriding atmosphere to effect a chemical bond consisting of a conversion of the interfacing ceramic to a Si--Al--O--N system.

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patent: 4058246 (1977-11-01), Nicklaus
Jack, K. H., "Review Sialons and Related Nitrogen Ceramics", from Journal of Materials Science II, 1976, pp. 1135-1158.

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