Ceramic-glass-metal seal by microwave heating

Electric heating – Metal heating – Of cylinders

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219 1055R, 1562722, 264 26, H05B 664

Patent

active

045298564

ABSTRACT:
A method for producing a ceramic-glass-metal seal by microwaving mixes a slurry of glass sealing material and coupling agent and applies same to ceramic and metal workpieces. The slurry and workpieces are then insulated and microwaved at a power, time and frequency sufficient to cause a liquid phase reaction in the slurry. The reaction of the glass sealing material forms a chemically different seal than that which would be formed by conventional heating because it is formed by diffusion rather than by wetting of the reactants.

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Cummisford, "Curing Spirit with Microwave," Am. Chem. Soc., Org. Coat. Plast. Chem. 39, p. 329, (1978).
Cole, "Sodium Silicate Bonded Sand Bodies Cured with Microwave Energy," Am. Chem. Soc., Org. Coat. Plast. Chem. 39, pp. 330-335, (1978).

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