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:
Aug. 19, 2008
Filed:
Jan. 03, 2007
Gary B. Merrill, Orlando, FL (US);
Jay E. Lane, Murrysville, PA (US);
Steven C. Butner, San Marcos, CA (US);
Robert Kreutzer, Poway, CA (US);
Jay A. Morrison, Oviedo, FL (US);
Gary B. Merrill, Orlando, FL (US);
Jay E. Lane, Murrysville, PA (US);
Steven C. Butner, San Marcos, CA (US);
Robert Kreutzer, Poway, CA (US);
Jay A. Morrison, Oviedo, FL (US);
Siemens Power Generation, Inc., Orlando, FL (US);
Abstract
A composite material () formed of a ceramic matrix composite (CMC) material () protected by a ceramic insulating material (). The constituent parts of the insulating material are selected to avoid degradation of the CMC material when the two layers are co-processed. The CMC material is processed to a predetermined state of shrinkage before wet insulating material is applied against the CMC material. The two materials are then co-fired together, with the relative amount of shrinkage between the two materials during the firing step being affected by the amount of pre-shrinkage of the CMC material during the bisque firing step. The shrinkage of the two materials during the co-firing step may be matched to minimize shrinkage stresses, or a predetermined amount of prestress between the materials may be achieved. An aluminum hydroxyl chloride binder material () may be used in the insulating material in order to avoid degradation of the fabric () of the CMC material during the co-firing step.