Glass manufacturing – Processes – Fusion bonding of glass to a formed part
Patent
1990-03-09
1991-04-23
Schor, Kenneth M.
Glass manufacturing
Processes
Fusion bonding of glass to a formed part
65 43, C03C 2700
Patent
active
050096907
ABSTRACT:
The method of producing a hermetic stable structural bond between quartz crystals includes providing first and second quartz crystals and depositing thin films of borosilicate glass and silicon on portions of the first and second crystals, respectively. The portions of the first and second crystals are then juxtaposed in a surface contact relationship and heated to a temperature for a period sufficient to cause the glass and silicon films to become electrically conductive. An electrical potential is then applied across the first and second crystals for creating an electrostatic field between the adjoining surfaces and causing the juxtaposed portions to be attracted into an intimate contact and form a bond for joining the adjoining surfaces of the crystals.
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G. Wallis et al., "Field Assisted Glass-Metal Sealing", Journal Applied Physics, vol. 40, No. 10, 1970, pp. 3946-3949.
G. Wallis et al., "Field Assisted Seals of Glass to Fe-Ni-Co Alloy", Ceramic Bulletin, vol. 50, No. 12, 1971, pp. 958-961.
G. Wallis, "Direct-Current Polarization During Field-Assisted Glass-Metal Sealing", Journal American Ceramic Society, vol. 53, No. 10, 1970, pp. 563-567.
Curlee Richard M.
Tuthill Clinton D.
Watkins Randall D.
Chafin James H.
McMillan Armand
Moser William R.
Schor Kenneth M.
The United States of America as represented by the United States
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