| 摘要 |
PROBLEM TO BE SOLVED: To control an average crystal particle size to a small value in crystalline substances including various electronic materials such as a thermoelectric material. SOLUTION: A different-phase polycrystalline powder, which is prepared by a gas atomization method, comprises Sb, CoSb, CoSb<SB>2</SB>, etc., and is in a nonequilibrium state, is sintered by a pressure sintering means such as plasma discharge sintering, thus forming a polycrystalline sintered body wherein the average crystal particle size of crystals constituting the sintered body is controlled to 0.8μm or lower. COPYRIGHT: (C)2003,JPO
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