Engine parts

Details Engine parts Engine parts

C - Chemistry, Metallurgy

04

B

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C04B 35/48 (2006.01) C04B 35/488 (2006.01) F02F 3/00 (2006.01) F02F 7/00 (2006.01) F02B 1/04 (2006.01) F02B 3/06 (2006.01)

Patent

CA 1157486

Abstract of the Disclosure This invention relates to engine parts having high durability, which can be used at high operating temperatures. The engine parts comprise component members consisting mainly of the partially stabilized zirconia having high strength which is excellent in thermal insula- tion and mechanical strength. As the partially stabilized zirconia having high strength, use is made of ones in which thermal expansion hysteresis (difference of thermal expansion at an optional temperature in the thermal expansion during heating up and the thermal shrinkage during cooling down) is less than 0.4% and thermal expansion coefficient is more than 10x10-6/°C. The preferable engine parts having higher durability and reliability comprise component members consisting of a ceramic metal composite body wherein the partially stabilized zirconia having a difference of thermal expansion coefficient being less than 3x10-6/°C and a metal are bonded. - 14 -

382013

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