Sealing glass composite

Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond

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428210, 428323, 428325, 428330, 428432, 428433, 428434, 501 15, 501 17, 501 32, B32B 1504

Patent

active

047525215

ABSTRACT:
The present direct invention is directed to a sealing glass composite comprising a low melting point sealing glass matrix mixed with a particulate additive to increase the effective coefficient of thermal expansion of the resulting sealing glass composite. The sealing glass matrix is in the lead borate family and the particulate additive is preferably calcium fluoride. For extreme bonding conditions, a small amount of copper oxide is dissolved into the glass matrix.

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"Introduction to Ceramics" by W. D. Kingery, published by John Wiley & Sons, Inc., 1967, pp. 479-480.
"Glass-Ceramics" by P. W. McMillan, Academic Press, 1979, p. 1.

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