The article aimed to obtain a structural material with increased plasticity and density of 98.5–99.5% based on (Mo–25% W)–20 vol.% Cu pseudoalloys with a homogeneous refractory skeleton obtained by a single-time pressing and sintering of the dispersed mixture at temperatures 1400–1500°C. The production of a dispersed granulated Mo–25% W alloy with a powder particle size of 0.1–0.3 μm through the decomposition of complex ammonium paramolybdate and paratungstate salts into oxide compounds xWO3 · yMoO3 with their subsequent reduction by hydrogen in a rotary chamber was studied. Considering the temperature and decomposition time of complex salts in the moving layers, the physical and technological properties (such as phase composition, oxygen content, specific surface, bulk density, and tap density) of complex oxide powders xWO3 · yMoO3 and metal Mo– 25% W powders after reduction by hydrogen were compared with the corresponding properties of powders obtained in a stationary tube furnace in fixed layers. Temperature dependencies of porosity in (Mo–25% W)–20 vol.% Cu pseudoalloys after sintering at the temperature between 900 and 1500°C has been examined. It has been established that compaction of dispersed powder mixtures of (Mo–25% W)–20 vol.% Cu and homogenization of Mo–25% W alloy after sintering begin at the temperature 300°C lower than when sintering mechanical mixtures of commercial metal powders. It has been shown that (Mo–25% W)–20 vol.% Cu pseudoalloys obtained by liquid-phase sintering at 1500°C for 1 hour have the following characteristics: at 20°C, the ultimate tensile strength σt == 490 MPa, relative elongation δ = 1.1, Brinell hardness HB = 3.3 GPa, and at 500°C— σt == 370 MPa, δ = 4.4, and HB = 2.7 GPa.

中文翻译：

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基于均质 Mo-25% W 粉末合金的高密度 Mo-W-Cu 假合金通过减少移动层中的氧化物粉末生产

该文章旨在获得一种基于 (Mo–25% W)–20 vol.% Cu 假合金的塑性和密度增加 98.5–99.5% 的结构材料，该假合金具有均匀的耐火骨架，通过一次压制和烧结在 1400–1500°C 的温度下分散混合物。研究了通过将复杂的仲钼酸铵和仲钨酸盐分解成氧化物 xWO3·yMoO3 并随后在旋转室中用氢气还原来生产粉末粒度为 0.1-0.3 μm 的分散粒状 Mo-25% W 合金. 考虑到移动层中络盐的温度和分解时间、物理和工艺特性（如相组成、氧含量、比表面积、堆积密度、复合氧化物粉末 xWO3 · yMoO3 和金属 Mo–25% W 粉末经氢还原后的振实密度和振实密度）与在固定层固定管式炉中获得的粉末的相应性能进行了比较。已经检查了 (Mo–25% W)–20 vol.% Cu 假合金在 900 到 1500°C 之间的温度下烧结后孔隙率的温度依赖性。已经确定，烧结后 (Mo–25% W)–20 vol.% Cu 的分散粉末混合物的压实和 Mo–25% W 合金的均质化开始时的温度比烧结商业机械混合物时低 300°C。金属粉末。研究表明，在 1500°C 下液相烧结 1 小时获得的 (Mo–25% W)–20 vol.% Cu 假合金具有以下特性：在 20°C 下，极限抗拉强度 σt == 490兆帕，