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:
Dec. 23, 2003
Filed:
Nov. 08, 2001
Applicant:
Inventor:
Larry Lee Fehrenbacher, Annapolis, MD (US);
Assignee:
Technology Assessment & Transfer, Inc., Annapolis, MD (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22C 1/04 ; B22F 3/14 ;
U.S. Cl.
CPC ...
C22C 1/04 ; B22F 3/14 ;
Abstract
Targets for the fabrication of quasicrystalline films are prepared from powders of the elemental constituents of the objective quasicrystalline material that have been pressed into a required target shape. The temperature of target fabrication is maintained sufficiently low that quasicrystalline alloy formation does not occur during target fabrication. Due to the high thermal shock resistance of each of the individual constituents and due to the dispersed form of the powders comprising the target, the target demonstrates very high resistance to thermal shock.