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. 26, 2011
Filed:
Sep. 06, 2006
Jay E. Lane, Mims, FL (US);
Christian X. Campbell, Orlando, FL (US);
Jay E. Lane, Mims, FL (US);
Christian X. Campbell, Orlando, FL (US);
Siemens Energy, Inc., Orlando, FL (US);
Abstract
An insulation () and an insulated article () having improved properties for use in a high temperature combustion environment. The improved insulation may include composite particles () of alumina and zirconia-hafnia exhibiting micro-cracks that remain contained within the particles and do not extend into a surrounding binder material. The improved insulation may be a vapor resistance layer (VRL) top coat () disposed over a layer of mullite-based ceramic thermal insulation () and may be anchored to the thermal insulation by extending into pits () formed in the surface (S') of the mullite-based insulation. Porosity and thickness of the top coat may be controlled to provide compatibility between the elastic modulus of the zirconia-hafnia top coat and that of the underlying mullite-based insulation.