Antonelli, Terry, Stout & Kraus
High thermal expansion coefficient ceramic sinter and a composite body of the same and metal
 The ceramic sinter is composed of a metal oxide such as ZrO.sub.2 and 10-90 vol. % of metal fluoride which is selected from the group having not less than 2.5 electronegativity difference between fluoride and the metal element. The ceramic sinter has a thermal expansion coefficient of 15-20.times.10.sup.-6 /.degree.C. and is suitable for bonding with general use metals such as stainless steel to form a composite body of the ceramic sinter and the metal without causing a substantial thermal stress at the juncture thereof. 
Hitachi, Ltd.
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Tadahiko Akira
Miyoshi Tanaka