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:
Nov. 24, 2009
Filed:
Mar. 24, 2004
Katsunori Akiyama, Yokohama, JP;
Ichiro Nagano, Yokohama, JP;
Masato Shida, Yokohama, JP;
Satoshi Ota, Yokohama, JP;
Katsunori Akiyama, Yokohama, JP;
Ichiro Nagano, Yokohama, JP;
Masato Shida, Yokohama, JP;
Satoshi Ota, Yokohama, JP;
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Abstract
There is provided a novel thermal barrier coating material which does not have a problem of phase transition, whose melting point is higher than its working temperature range, whose thermal conductivity is smaller than that of zirconia, and whose thermal expansion coefficient is greater than that of zirconia. The thermal barrier coating material comprises as a main component, a composition having an orthorhombic or monoclinic structure derived from perovskite (for example, a tabular perovskite structure expressed by the composition formula ABO), or a tetragonal layer structure having a c axis/a axis ratio equal to or greater than 3 (for example, a KNiFstructure, a SrTiOstructure, or a SrTiOstructure), a composition expressed by the composition formula LaTaO, or a composition having an olivine type structure expressed by the composition formula MSiOor (MM')SiO(where M, M′ are divalent metal elements).