PURPOSE:To provide the titled powder having high recrystallization temperature, usable for a long time at a high temperature, and usable even as the sintering board for uranium fuel, by compounding MoO2 with CaO in addition to Al2O3, K2O and SiO2. CONSTITUTION:The objective doped molybdenum powder is composed of (in terms of oxide) 0.005-0.01wt% Al2O3, 0.15-0.40% K2O, 0.20-0.50% SiO2, 0.005-0.01% CaO and remaining part of MoO2. Such a kind of doped molybdenum powder is used as a sintering board, etc. in the form of a board by powder metallurgy, however, it has been impossible to use the conventional board doped with Al2O3, K2O and SiO2 at =1,000 deg.C for a long period. The powder doped further with CaO has higher recrystallization temperature than the conventional molybdenum material by 300 deg.C, and remarkably improved high-temperature deformation resistance, and is usable even as the sintering board for uranium fuel for nuclear power plant.
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机译：用途：通过将MoO2和CaO除Al2O3，K2O和SiO2以外的化合物混合，提供具有高重结晶温度，可在高温下长时间使用，甚至可用作铀燃料烧结板的标题粉末。组成：目标掺杂钼粉由（按氧化物计）0.005-0.01wt％Al2O3、0.15-0.40％K2O，0.20-0.50％SiO2、0.005-0.01％CaO和其余的MoO2组成。通过粉末冶金将这种掺杂的钼粉以板的形式用作烧结板等，但是，不可能使用在≥1000度下掺杂有Al 2 O 3，K 2 O和SiO 2的常规板。 C很长一段时间。与常规钼材料相比，进一步掺杂有CaO的粉末具有更高的重结晶温度，并且显着提高了高温抗变形性，并且甚至可用作核电站铀燃料的烧结板。
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