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:
Jan. 06, 2004
Filed:
May. 28, 2002
Applicant:
Inventor:
Björn Ljungberg, Enskede, SE;
Assignee:
Sandvik AB, Sandviken, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C23C 1/600 ;
U.S. Cl.
CPC ...
C23C 1/600 ;
Abstract
A body is at least partially coated with one or more refractory layers of which at least one layer is of a finegrained &kgr;-Al O . Said &kgr;-Al O layer has equiaxed grains with an average grain size of <0.5 &mgr;m. The Al O layer also has at least one sublayer containing Al, Si and O. The finegrained &kgr;-Al O microstructure is obtained by periodically introducing a silicon halide, preferably SiCl , during the Al O -process.