Microwave susceptor elements and materials
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United States of America Patent
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Feb 14, 1995
Issued Date -
N/A
app pub date -
Jan 11, 1993
filing date -
Jan 11, 1993
priority date (Note) -
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Abstract
Materials and methods are disclosed for making microwave susceptor elements. The elements of this invention employ substrates, made of solid refractory materials, which are porous and liquid absorbent. The substrates, relatively microwave transparent per se, are rendered microwave interactive by a surface deposit of a finely subdivided microwave responsive substance. The substance is laid down from its dispersion in a volatile liquid medium which is later removed by evaporation. Susceptor elements thus made, be they large pieces or particulates, are uniquely suited for storing microwave generated heat up to elevated temperatures, subject only to the thermal stability of accessory materials. They also perform equally well in conventional ovens. The heat stored may be delivered to load objects during the heating step, in the oven, or afterwards, outside the oven.
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