Cr_2(C,N)-ZrO_2系組成物の焼結

概要

論文の詳細を見る
Cr_2 (C, N) was obtained by heating Cr metal powder in a mixed gas of CO and N_2. This compound is useful for high temperature structural and heat element materials since it is high melting and electronic conductive. This compound, however, is easily oxidized in an atmosphere containing oxygen at high temperatures. The oxidation resistance is enhanced by forming a densely sintered Cr_2(C, N)-ZrO_2 body. This paper described a fundamental for the development of composites in the system Cr_2(C, N)-ZrO_2. The dense Cr_2(C, N)-ZrO_2 body was obtained by heating mixtures of Cr and ZrO_2 in a gas mixture of CO and N_2 at 1500℃. For example, a dense Cr_2(C, N)-ZrO_2 body with relative density of 95% was obtained from a (60 wt%Cr-40 wt%ZrO_2) compact by sintering in a gas with p_<co> of 0.2 atm and p_<N_2> of 0.8 atm at 1500℃.
社団法人日本セラミックス協会の論文
1990-01-01