Ceramics joint structure and method of producing the same
AssigneeNGK Insulators, Ltd.
InventorsRyusuke Ushikoshi, Hideyoshi Tsuruta, Tomoyuki Fujii
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Abstract
The disclosed ceramics joint structure, in which a ceramics member having an oxidation resistance property and a metal member are joined via a joint layer, has a structure such that a part of the embedded member is exposed to a joint surface of the ceramics member, which is contacted with the joint layer to form a metal exposing portion, and the ceramics member and the metal exposing portion are joined via the joint layer to the metal member respectively. Moreover, the joint layer is mainly made of one or more metal selected from the group consisting of gold, platinum and palladium.
Claims6
A ceramics joint structure in which a ceramics member having an oxidation resistance property and a metal member are joined via a joint layer, comprising a structure such that:
- (1) an embedded member made of a metal including at least molybdenum is embedded in said ceramics member;
- (2) a part of said embedded member is exposed to a joint surface of said ceramics member to form a metal exposing portion which is contacted with said joint layer;
- (3) said ceramics member and said metal exposing portion are joined via said joint layer to said metal member respectively;
- and
- (4) said joint layer comprises more than 50% by weight with respect to all the metal in the joint layer of at least one metal selected from the group consisting of gold, and palladium.
Dependencies are inferred from the claim text.