| http://www.w3.org/ns/prov#value | - In the prior art, a variety of substances including metal particles, ferrites, carbon or graphite particles, oxides of the metals zinc, germanium, barium, tin, iron and the like have been incorporated into coatings for producing heat in a microwave oven, i.e. to act as a heating susceptor for the purpose of absorbing a portion of the microwave energy and converting it to heat.
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