液体窒素中での火花放電法による窒化チタン粉体の合成
1990 年 98 巻 1144 号 p. 1296-1301
詳細
1990 年 98 巻 1144 号 p. 1296-1301
Titanium nitride powders were synthesized using the spark discharge between titanium electrodes in a liquid nitrogen. The powders were presumed to be the nitrogen defective titanium nitrides by X-ray diffraction and nitrogen analysis. There were irregular shape particles beyond 100μm, spherical particles below 40μm and ultra fine particles below 40nm in the powders. It was suggested that irregular shape and spherical particles were formed of solidified titanium nitride of electrode couples and molten titanium containing nitrogen in discharge point respectively, and that ultra fine particles were formed by gas phase reaction of titanium with nitrogen particularly.
