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:
Jun. 06, 1995
Filed:
Sep. 08, 1992
Applicant:
Inventors:
Assignee:
Iowa State University Research Foundation, Inc., Ames, IA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C23C / ;
U.S. Cl.
CPC ...
20419215 ; 20419224 ;
Abstract
A method is provided to form a lead Chevrel phase coating of the formula PbMo.sub.6 S.sub.8 on a substrate by employing the techniques of reactive sputtering comprising: (a) sputtering lead (Pb) and molybdenum (Mo) from homogeneous targets of Pb and Mo in vacuo in an atmosphere of argon and hydrogen sulfide so as to deposit a coating of PbMo.sub.6 S.sub.8 on said substrate; and (b) annealing said PbMo.sub.6 S.sub.8 coating at a pressure at which Pb is not lost from the coating; wherein the targets and the substrate are contained within a vacuum chamber during steps (a) and (b).