常圧焼結TiC/Al_2O_3複合材料の***ージョン摩耗特性 : 市販加圧焼結品との比較

概要

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Erosion wear properties of pressureless sintered TiC/Al_20_3 composites were measured by a collision test between Al_20_3 or SiC particles accelerated in an air stream for the purpose of the comparison with various pressurized sintered ceramics composites, SiC, Si_3N_4, ZrO_2, Al_2O_3 monolithic ceramics, and cemented carbides. In the case of collision by Al_20_3 particles, the pressureless sintered TiC/Al_20_3 composites had the highest wear resistance, which wear rate was almost the same as that of commercial pressurized sintered ceramics composite. 0n the other hand, in the case of collision by SiC particles, cemented carbides (WC+4Co) had the highest wear resistance. The wear rate of pressureless sintered TiC/Al_20_3 composites was smaller than that of Al_20_3, SiC and ZrO_2/Al_20_3 composites ; however, it was almost the same as that of commercial pressurized sintered ceramics composites, Si_3N_4 and ZrO_2.
社団法人日本セラミックス協会の論文
2004-02-01