| http://www.w3.org/ns/prov#value | - A silicon melt contact member having a porous sintered body layer present on its surface, preferably the sintered body layer being present on a substrate of a ceramic material such as aluminum nitride, wherein the porous sintered body layer consists essentially of silicon nitride, has a thickness of 10 to 500 ??m, and has, dispersed therein, many pores preferably having an average equivalent circl
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