Nippon Tungsten Co., Ltd.

Yutaka Kanemitsu

Michito Miyahara

Mitsuhiko Furukawa

Takashi Kitahira

Yoshimichi Hara

Takehiko Hagio

Sintered bodies having improved sinterability and toughness consist essentially of: (1) 100 parts by weight of titanium carbide, titanium oxide and aluminum oxide, the titanium carbide and titanium oxide accounting for 15 to 60 percent by weight and the aluminum oxide accounting for 85 to 40 percent by weight, the amount of titanium oxide relative to the titanium carbide and titanium oxide being 5 to 15 percent by weight, and (2) 0.039 to 1.575 parts by weight of yttrium. Sintering aids may include at least one of the oxides of magnesium, nickel, molybdenum, chromium, cobalt, iron and manganese.

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Fukuoka, Japan

Yutaka Kanemitsu