| 摘要 |
The present invention relates to a method for manufacturing a specimen consisting of ceramics having low thermal conductivity for measuring intrinsic thermal conductivity and a specimen manufactured thereby, and, more specifically, to a method for manufacturing a specimen consisting of ceramics having low thermal conductivity for measuring intrinsic thermal conductivity and a specimen manufactured thereby. The method comprises the steps of: (a) preparing at least two kinds of ceramic raw-material powers; (b) mixing the at least two kinds of ceramic raw-material powers; and (c) manufacturing a sintered body specimen by high temperature and pressure sintering, using the mixed power obtained in step (b). According to the present invention, by using the high temperature and pressure sintering as a sintering means, the specimen is capable of measuring a thermal diffusivity for low thermal conductivity ceramics themselves while an intervention of a pore is maximally excluded. Therefore, it is possible to measure the intrinsic thermal conductivity having accuracy and reliability for the low thermal conductivity ceramics, so optimal materials to be used to a train wasted-coating or the like, can be developed more rapidly and economically than in the past. |
