Silicon carbide porous body, process for producing the same...

Details Silicon carbide porous body, process for producing the same... Silicon carbide porous body, process for producing the same...

2007-07-17

2007-07-17

Group, Karl (Department: 1755)

Compositions: ceramic

Ceramic compositions

Carbide or oxycarbide containing

C501S089000, C428S116000, C264S630000, C264S682000

Reexamination Certificate

active

10535213

ABSTRACT:
A silicon carbide porous body of the present invention, comprising silicon carbide particles and metallic silicon bonded together in such a manner that pores are retained between the silicon carbide particles and/or between the silicon carbide particle and metallic silicon, wherein an oxide phase containing oxides of silicon, aluminum, and alkaline earth metal is buried in at least some of fine pore portions having a minimum distance of 10 μm or less between the surfaces of the silicon carbide particles or between the surfaces of the silicon carbide particle and metallic silicon among the pores, and a ratio of a total volume of portions in which the oxide phase is not buried among the fine pore portions is 20% or less with respect to a total volume of portions in which the oxide phase is not buried among the pores including the fine pore portions.

REFERENCES:
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patent: 2006/0121239 (2006-06-01), Furukawa et al.
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patent: A 2002-201082 (2002-07-01), None
patent: WO 02/081406 (2002-10-01), None

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