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:
Aug. 17, 1999
Filed:
Dec. 11, 1997
Applicant:
Inventor:
Enrique J Lavernia, Santa Ana, CA (US);
Assignee:
The Regents of the University of California, Oakland, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C23C / ;
U.S. Cl.
CPC ...
427446 ; 29DI / ;
Abstract
Nanocrystalline coating are prepared using a two step approach. First, the grain size of: micrometer sized powders is reduced to nanometer dimensions using high energy ball milling. This is undertaken using attritor mills. Second, the nanocrystalline powders are dried and introduced into the high velocity oxygen fuel (HVOF) process and produce a coating with refined microstructure. The finished coating can be several mm in thickness. In addition a three dimensional device can be spray formed.