Glass manufacturing – Processes – With chemically reactive treatment of glass preform
Patent
1992-12-02
1994-03-01
Jones, W. Gary
Glass manufacturing
Processes
With chemically reactive treatment of glass preform
65 36, 65 43, 65 591, 65 597, 156662, C03C 2700
Patent
active
052903338
ABSTRACT:
A Si--SiC ceramic layer is bonded to a non-porous SiC substrate with the Si etched from the layer to form a relatively porous surface on the otherwise non-porous high strength SiC substrate. A quartz layer is softened by heating and forced into the pores of the porous layer to form a mechanical bond to the SiC substrate. A refractory metal layer is bonded to the quartz layer to complete the joint. A refractory metal support component is then bonded to the refractory layer whereby the quartz serves as a high strength, high temperature reaction barrier between the metal of the refractory layer and the silicon of the SiC substrate.
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patent: 4109050 (1978-08-01), Mehan et al.
patent: 4705585 (1987-11-01), Kelly et al.
patent: 4952454 (1990-08-01), Iwamoto et al.
V. A. Greenhut, "Joining of Ceramic-Metal Systems: General Survey", vol. 4, 1986, Encyclopedia of Materials Science and Engineering, pp. 2463-2467.
J. T. Klomp, "Joining of Ceramic-Metal Systems: Procedures and Microstructures", Encyclopedia of Materials Science and Engineering, vol. 4, 1986, pp. 2467-2475.
Mehan Richard L.
Nied Herman F.
General Electric Company
Griffin Steven P.
Jones W. Gary
Scanlon Patrick R.
Webb II Paul R.
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