摘要
采用喷射共沉积法制备了Ａｌ－Ｆｅ２Ｏ３及Ａｌ－ＣｕＯ复合体，Ｆｅ和Ｃｕ的质量分数分别为９．６０％和５．５０％．在热处理过程中，随着温度由６００℃升高到８００℃和１０００℃，Ｆｅ３Ｏ４按Ｆｅ３Ｏ４ＦｅＯＦｅ顺序被还原，得到Ａｌ－Ｆｅ／Ａｌ２Ｏ３复合材料，其中Ｆｅ以Ａｌ１３Ｆｅ４相及ＡｌＦｅ相形式存在．Ａｌ２Ｏ３粒度为２～４μｍ均匀分布在基体中．Ａｌ／ＣｕＯ复合体在９００℃处理后，形成Ａｌ－Ｃｕ／Ａｌ２Ｏ３复合材料．文中对显微结构形成、反应进行的过程作了分析．
By means of cospray deposition ,Al/Fe 2O 3 and Al/CuO composites are produced.Chemical analysis shows the Fe content and Cu centent in the two composites are 9 6% and 5.50% mass fraction respectively.In the annealing process,with the temperature increasing from 600 ℃ to 800 ℃,1 000℃,Fe 2O 3 was reduced in the sequence :Fe 2O 3Fe 3O 4FeOFe.In this way,Al Fe/Al 2O 3 composites can be obtained.Fe exists in the composites in the form of Al 13 Fe 4 phase and AlFe phase.The Al 2O 3 particles dispersed in the matrix have a size of about 2～4 μm.Al Cu/Al 2O 3 can be prepared by annealing the Al/CuO composites at 900 ℃ for 1 h.The formation of the microstructure and the reaction process are discussed.
出处
《中南工业大学学报》
CSCD
北大核心
1997年第1期44-47,共4页
Journal of Central South University of Technology(Natural Science)
基金
国家教委博士点基金
关键词
铝基
复合材料
反应生成
铁
铜
氧化铝
composite materials
spray deposition
reaction synthesis
