| http://www.w3.org/ns/prov#value | - (2) Surfaces or open pores of the partition walls are plated with a metal such as aluminum or the like, and then the sintered body is subjected to a heat treatment in an oxidizing atmosphere at a temperature ranging from 700??? C. to 1,100??? C. The plating includes electroplating, a gas phase plating, and a physical or chemical vapor deposition.
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