对Cu2O与Al进行热力学分析后将其粉末压制成块,测试了不同温度下反应的热分析曲线,并对反应后的试样进行X射线衍射分析.结果表明:Cu2O-Al体系化学反应包括3个阶段,即第1阶段体系温度T＜910 K,有少量Al2O3和Cu生成;第2阶段体系温度为910 K≤T＜1103 K,Cu2O-Al体系未发生化学反应;第3阶段体系温度为1103 K≤T≤1373 K,Cu2O-Al体系发生化学反应,其产物为Cu、Al2O3及CuAlO2.
The reaction behavior of Cu2O and Al was analyzed by chemical thermodynamics methods, temperature-time analysis curves were tested and X-ray diffraction was applied to examine reacted products in the specimens fabricated from Cu2O-Al powder compacts. The results show that the chemical reaction of Cu2O-Al system includes three different stages: in the first stage, there is a little reacted products of Al2O3 and Cu when temperature is lower than 910 K;in the second stage,chemical reaction doesn't occur in the Cu2O-Al system from 910 K to 1103 K;in the third stage, the reacted products of Cu,Al2O3 and CuAlO2 are formed from 1103 K to 1373 K.
参考文献
| [1] | 石子源.纯铜渗铝渗剂的铝含量对α-Cu相结构的影响[J].大连铁道学院学报,2000(03):89-92,101. |
| [2] | Li H X;Tian B H .[J].Ordnance Material Science and Engineering,2004,27:64. |
| [3] | Yu Y M;Yang G C;Li H L .[J].Powder Metallurgy Technology,2000,18:252. |
| [4] | 王武孝,袁森.CuO-Al-Cu粉末压坯中CuO和Al的反应机理[J].中国有色金属学报,2000(05):693. |
| [5] | 程兰征;章燕豪.物理化学[M].上海:上海科学技术出版社,1994 |
| [6] | Trumble K P .[J].Acta Metallurgica Et Materialia,1992,40:105. |
| [7] | Sung T K .[J].Journal of Materials Science,1992,27:2061. |
| [8] | Yoshino Y .[J].Journal of the American Ceramic Society,1989,72:1322. |
| [9] | 戴安邦.无机化学教程[M].北京:冶金工业出版社,1983 |
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