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:
Feb. 10, 2004
Filed:
Dec. 21, 2001
Applicant:
Inventor:
Kenneth S. Murphy, Norton Shores, MI (US);
Assignee:
Howmet Research Corporation, Whitehall, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B 1/504 ; F03B 3/12 ; C23C 1/600 ;
U.S. Cl.
CPC ...
B32B 1/504 ; F03B 3/12 ; C23C 1/600 ;
Abstract
A ceramic thermal barrier coating on a substrate wherein the coating comprises primary columnar grains that extend transversely of a surface of the substrate and that include integral secondary columnar grains extending laterally therefrom relative to a respective column axis. The secondary columnar grains typically extend from the primary columnar grains at an acute angle of less than 90 degrees relative to the column axis of the primary columnar grains. The coating structure exhibits reduced thermal conductivity as compared to a conventional thermal barrier coating.