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原位生成法制备Cu/Al₂O₃复合材料中Al（NO₃）₃分解温度的探讨

Discussion on Decomposition Temperature of Al（NO₃）₃ in Cu-Al₂O₃ Composites by in-situ Reaction

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【Author】 WEI Mei-hong1,HONG Qi,DUAN Peng-zheng2,WANG Bao-jian3(1.Faculty of Machinery,Morden vocational and Technical College of Jiang Xi,NanChang,jiangxi 330012,China 2.Shanghai electric cables research institute,Shanghai 200093,China;3.Faculty of Materials Science and Chemistry Engineering,Jiang Xi University of Science and Technology,Ganzhou,jiangxi 341000,China)

【机构】江西现代职业技术学院机械学院；上海电缆研究所；江西理工大学材料与化学工业学院江西南昌330012；江西南昌330012；上海200093；江西赣州341000；

【摘要】为更好地控制铜基氧化铝弥散材料中氧化铝的粒度,本文在不加铜粉和加铜粉的两种条件下,通过研究Al(NO3)3在不同温度下的分解情况及原位生成时弥散相氧化铝的粒径变化,发现Al(NO3)3分解得到的氧化铝颗粒的粒径随温度的升高而变大,其分解产生细小均匀的Al2O3颗粒的最佳温度为550~600℃。更多还原

【Abstract】 In order to control the size of the Al2O3 particles of Cu-Al2O3 Composite better,decomposition of Al(NO3)3 and the size of in-situ synthesis Al2O3 particles are studied under two different conditions,one isn’t added by copper powder,the other is added.The result shows that the size of in-situ synthesis Al2O3 particles grows with the increase of test temperature and the best decomposition temperature of Al(NO3)3 is 550～600 ℃,at which the fine and homogeneous Al2O3 can be obtained.更多还原