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:
Jul. 11, 2006
Filed:
Jul. 14, 2004
Christophe Chaput, Les Palais sur Vienne, FR;
Cyrille Delage, Limoges, FR;
Andre Malie, Chatellerault, FR;
Isabelle Porte, Condat sur Vienne, FR;
Bertrand Saint-ramond, Fontainebleau, FR;
Christophe Chaput, Les Palais sur Vienne, FR;
Cyrille Delage, Limoges, FR;
Andre Malie, Chatellerault, FR;
Isabelle Porte, Condat sur Vienne, FR;
Bertrand Saint-Ramond, Fontainebleau, FR;
SNECMA Moteurs, Paris, FR;
Abstract
A composite target is placed in a chamber. The target is in the form of a bar made of ceramic powder and it presents composition that is not uniform in the longitudinal direction. At least one substrate is introduced into the chamber in order to have formed thereon a ceramic coating with a composition gradient. The top face of the bar is swept by an electron beam so as to melt the bar material at its top face and form a vapor cloud in the chamber under low pressure. A bar is used that presents a plurality of superposed layers of different compositions, with the composition within each layer being uniform over the entire cross-section of the bar. Each layer of the bar comprises zirconia and at least one oxide selected from the oxides of nickel, cobalt, iron, yttrium, hafnium, cerium, lanthanum, tantalum, niobium, scandium, samarium, gadolinium, dysprosium, ytterbium, and aluminum.