| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a porous ceramics, regarding one kind of porous ceramics, in which, particularly, the surface area of air contact is increased, and the heat radiation effect of a radiator can be improved. <P>SOLUTION: A resin is added to granular silicon carbide by a suitable proportion, thereafter, a solvent is added thereto, and mixing is caused so as to uniformly stir the mixture. In the kneading process, the resin covers the surface of the granular silicon carbide so as to form a colloid object, this colloid object is molded by extrusion molding, and the solid matter is sintered at the melting temperature of the silicon carbide. Since the melting temperature of the silicon carbide is extremely higher than that of the resin, the resin is perfectly burnt, and vacancies are formed in the spaces of the silicon carbide so as to form porous ceramics. Further, by altering the addition ratio of the resin, the size of the vacancies and the number of the vacancies, the proper conditions of the thermal conductivity and heat radiation in the porous ceramics can be adjusted. <P>COPYRIGHT: (C)2011,JPO&INPIT |
