Effect of Carbon Content on Mechanoreduction of Copper Oxide
LIU Lin1, YUAN Song-liu2, DONG Yuan-da3, CUI Kun1
1The State Key Laboratory of Plastic Forming Stimulation and Die & Mould Technology, Huazhong University of Science & Technology, Wuhan 430074
2Department of Physics, Huazhong University of Science & Technology, Wuhan 430074
3Institute of Materials, Shanghai University, Shanghai 200072
Effect of Carbon Content on Mechanoreduction of Copper Oxide
LIU Lin1;YUAN Song-liu2;DONG Yuan-da3;CUI Kun1
1The State Key Laboratory of Plastic Forming Stimulation and Die & Mould Technology, Huazhong University of Science & Technology, Wuhan 430074
2Department of Physics, Huazhong University of Science & Technology, Wuhan 430074
3Institute of Materials, Shanghai University, Shanghai 200072
Abstract： The reduction of CuO with different amount of carbon (CuO:C=2:1, 2:1.5, and 2:2, in molar ratio) induced by ball milling is examined by x-ray diffraction and transmission electron microscopy. It is found that reduction process is closely related to the carbon content. CuO can be completely converted into Cu if an excessive C is used (i.e., C = 1.5 or 2.0mol). However, the reduction of CuO follows a two-step process, CuO→Cu→Cu2O, if the mixture only contains a nominal C content (i.e., C = 1 mol). A tentative model in terms of solid state reaction at the interfaces is proposed to explain the effect of carbon content on the mechanoreduction of CuO.
LIU Lin;YUAN Song-liu;DONG Yuan-da;CUI Kun. Effect of Carbon Content on Mechanoreduction of Copper Oxide[J]. 中国物理快报, 1999, 16(8): 591-593.
LIU Lin, YUAN Song-liu, DONG Yuan-da, CUI Kun. Effect of Carbon Content on Mechanoreduction of Copper Oxide. Chin. Phys. Lett., 1999, 16(8): 591-593.
1999, Vol. 16 
