| 钨酸铜的生成及其氢还原过程的研究 |
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| 引用本文： | 吴恩熙,钱崇梁,邹志强,张玉华. 钨酸铜的生成及其氢还原过程的研究[J]. 中南大学学报(自然科学版), 1993, 0(1) |
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| 作者姓名： | 吴恩熙 钱崇梁 邹志强 张玉华 |
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| 作者单位： | 粉末冶金研究所，粉末冶金研究所，粉末冶金研究所，粉末冶金研究所 |
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| 摘 要： | 本文提出一种生产微细钨铜复合粉的方法。将WO_3(或蓝钨)和CuO均匀混合,在空气中焙烧生成CuWO_4,再在氢气中还原,就能制得微细钨铜复合粉,其钨、铜两相分布均匀,钨颗粒细小且分布狭窄。本文详细地研究了钨酸铜的生成及其氢还原过程,与WO_3相比,发现两者的还原相变过程及动力学过程有某些差异。
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| 关 键 词： | 钨酸铜 复合粉 X射线衍射 相变 |
A STUDY ON FORMATION AND H_2-REDUCTION OF COPPER TUNGSTATE |
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| Wu Enxi,Qian Chongliang,Zou Zhiqiang,Zhang Yuhua Powder Metallurgy Research Institute. A STUDY ON FORMATION AND H_2-REDUCTION OF COPPER TUNGSTATE[J]. Journal of Central South University:Science and Technology, 1993, 0(1) |
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| Authors: | Wu Enxi Qian Chongliang Zou Zhiqiang Zhang Yuhua Powder Metallurgy Research Institute |
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| Affiliation: | Wu Enxi;Qian Chongliang;Zou Zhiqiang;Zhang Yuhua Powder Metallurgy Research Institute |
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| Abstract: | This study deals with a new method for the preparation of fine tungsten-copper com-posite powder. First, the WO_3 or blue tungsten oxide powder was mixed uniformly with CuOpowder. Then, the mixture was calcined in air and became CuWO_4 powder. Finally, thepowder was reduced with H_2. The tungten-copper composite powder with very fine tungstenparticles and well-sized distribution can be prepared. The detail of the formation and H_2-re-duction characteristics of the copper tungstate are given in this paper. The difference of thereduction characteristics of the copper tungstate and the WO_3 is also presented. |
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| Keywords: | copper tungstate composite powder phase transformation X-ray diffraction |
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