| abstract |
A phase in which particles of silicon carbide as an aggregate are bonded with metal silicon as a binder and in a state where pores are held between the particles, and the surface of the metal silicon selectively contains alumina ( It is characterized by being covered with a high melting point compound). This porous body is made by adding and mixing metallic aluminum or an alloy made of metallic silicon and metallic aluminum to raw materials silicon carbide and metallic silicon, firing in an inert gas atmosphere or a reduced pressure atmosphere, and then oxidizing in an oxygen atmosphere. And it is manufactured by baking. |