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:
Apr. 14, 2015
Filed:
Dec. 18, 2009
Glen Harold Kirby, Cincinnati, OH (US);
Brett Allen Boutwell, Cincinnati, OH (US);
Glen Harold Kirby, Cincinnati, OH (US);
Brett Allen Boutwell, Cincinnati, OH (US);
General Electric Company, Schenectady, NY (US);
Abstract
Methods for making an environmental barrier coating using a sintering aid including combining at least an organic solvent and a primary transition material to produce a transition layer slurry; applying a bond coat layer and then the transition layer slurry to the component; drying the applied transition layer slurry; infiltrating into the dried transition layer slurry a sol-gel solution containing an aqueous or organic solvent solution of, respectively, a water-soluble or solvent-soluble salt sintering aid; and sintering the infiltrated transition layer slurry to produce the environmental barrier coating having at least the bond coat layer and a transition layer; wherein during sintering a reaction between the primary transition material and the sintering aid results in the transition layer having a porosity of from 0% to about 15% by volume of the transition layer.