原位反应生成Al-Fe/Al2O3,Al-Cu/Al2O3复合材料的过程原理
来源期刊：中南大学学报(自然科学版)1997年第1期
论文作者：蒋向阳 陈振华 黄培云
文章页码：47 - 50
关键词：复合材料;喷射沉积;反应生成
Key words：composite materials;spray deposition;reaction synthesis
摘 要：采用喷射共沉积法制备了Al－Fe 2O 3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Fe3O4→FeO→Fe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.
Abstract: 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 : Fe2O3→Fe3O4→FeOFe.In this way,Al-Fe/ Al2O3 composites can be obtained.Fe exists in the composites in the form of Al13Fe4 phase and AlFe phase.The Al2O3 particles dispersed in the matrix have a size of about 2～4 μm.Al-Cu/ Al2O3 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.
