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:
Dec. 19, 2003
Min Yan, Schenectady, NY (US);
Anil Raj Duggal, Niskayuna, NY (US);
Marc Schaepkens, Ballston Lake, NY (US);
Tae Won Kim, Guilderland, NY (US);
Min Yan, Schenectady, NY (US);
Anil Raj Duggal, Niskayuna, NY (US);
Marc Schaepkens, Ballston Lake, NY (US);
Tae Won Kim, Guilderland, NY (US);
General Electric Company, Niskayuna, NY (US);
Abstract
The invention relates to composite articles comprising a substrate and additional layers on the substrate. According to one example, the layers are selected so that the difference in the coefficient of thermal expansion (CTE) between the substrate and a first layer on one side of the substrate is substantially equal to the CTE difference between the substrate and a second layer on the other side of the substrate. The stress caused by the CTE difference and/or shrinkage on one side of the substrate during heating or cooling is balanced by the stress caused by the CTE difference on the other side of the substrate during heating or cooling. Such stress balancing can reduce or minimize curling of the substrate.