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:
May. 11, 1993
Filed:
Jun. 15, 1990
Yoshitaka Kojima, Hitachi, JP;
Akira Mebata, Kitaibaraki, JP;
Noriyuki Ohnaka, Katsuta, JP;
Akihiko Chiba, Morioka, JP;
Ryoichiro Ohoshima, Hitachi, JP;
Norio Watanabe, Tokyo, JP;
Yukiyoshi Hara, Ageo, JP;
Hitachi, Ltd., Tokyo, JP;
The Tokyo Electric Power Company, Ltd., Tokyo, JP;
Abstract
A gas turbine bucket and a gas turbine nozzle applied with a ceramic coating comprises a base material of the bucket and the nozzle made of a heat resisting alloy; a plurality of coating layers for the front portion consisting of, a mixture layer which comprises a ceramic material and metal and which is formed on the base material, an alloy layer which comprises an alloy material exhibiting excellent resistance to high temperature oxidation and corrosion and which is formed on the mixture layer, and a ceramic layer which comprises ceramic material and formed on the alloy layer. Such ceramic coating has a satisfactory thermal barrier effect on the base material of the gas turbine bucket and nozzle.