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Sealing a ceramic sandwich with a zap.

One way to form a ceramic bond is to spread a glass slurry between the ceramic layers and then to heat the sandwich to create a seal. But if the heating is done in a microwave oven instead of in a furnace, the materials intermingle so well that the joint is hard to detect with the naked eye. Conventional heat sealing leaves a more visible bond that may contain flaws. Tom Meek and Rodger Blake of the Los Alamos (N.m.) National Laboratory, who discovered the microwave bonding method, can't explain why microwave processing makes a difference. They are now refining their technique.
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Title Annotation:use of microwave oven
Publication:Science News
Date:Mar 16, 1985
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