TiN基焼結体の色調に及ぼす添加物の効果 [in Japanese] Effects of Additives on the Color Quality of TiN Based Ceramics [in Japanese]
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The effects of additives on the densification and color quality of TiN ceramics were studied. Some oxides (Al<SUB>2</SUB>O<SUB>3</SUB>, CaCO<SUB>3</SUB>, TiO<SUB>2</SUB>, Y<SUB>2</SUB>O<SUB>3</SUB>, ZrO<SUB>2</SUB>) as additives were prechecked by sintering, and we selected TiO<SUB>2</SUB> as an addition. TiN was densified by pressureless sintering at 1550° to 1850°C in N<SUB>2</SUB>. Samples with addition of 8wt% TiO<SUB>2</SUB> sintered at 1550°, 1700°, and 1850°C showed the relative densities of 97.7, 99.8, and 99.7%, respectively. The optical reflectivity of polished samples was similar to that of gold. Vicker's hardness of some sintered bodies reached about 16GPa. Therefore, polished sintered bodies can be used for ornament.
- J. Jpn. Soc. Powder Powder Metallurgy
J. Jpn. Soc. Powder Powder Metallurgy 44(12), 1095-1099, 1997-12-15
Japan Society of Powder and Powder Metallurgy