The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 01, 1985
Filed:
Apr. 04, 1984
Masayuki Kaneno, Tokoname, JP;
Isao Oda, Nagoya, US;
NGK Insulators, Ltd., , JP;
Abstract
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 insulation 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 10.times.10.sup.-6 /.degree.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 3.times.10.sup.-6 /.degree.C. and a metal are bonded.