Preparation and mechanical properties of Fe3Al/Al2O3 nano-/micro-composite|YIN Yan-sheng(尹衍升), GONG Hong-yu(龚红宇), FAN Run-hua(范润华), WANG Xin (王昕), TAN Xun-yan(谭训彦)-《中国有色金属学报》官方网站|全网首发|论文开放获取

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中国有色金属学报(英文版)

Transactions of Nonferrous Metals Society of China

Vol. 13 No. 6 December 2003

Preparation and mechanical properties of Fe₃Al/Al₂O₃ nano-/micro-composite

YIN Yan-sheng(尹衍升), GONG Hong-yu(龚红宇), FAN Run-hua(范润华), WANG Xin (王昕), TAN Xun-yan(谭训彦)

（Key Laboratory for Material Liquid Structure and Heredity of Education Ministry,
Key Laboratory for Engineering Ceramics of Shandong Province，
Shangdong University, Ji′nan 250061, China）

Abstract:Al₂O₃ matrix composites reinforced with Fe₃Al nano-particles were fabricated by hot processing at 1450-1600℃. The effect of Fe₃Al content on the densification, mechanical properties and microstructure of the composites was investigated. The results show that some elongated Al₂O₃ grains are observed. Fe₃Al particles are mainly situated at grain boundaries of the matrix while smaller particles are trapped within the alumina grains. The addition of Fe₃Al nanoparticles improves the mechanical properties of alumina. The maximum strength and toughness of the Fe₃Al/Al₂O₃ nanocomposites are 832MPa and 7.96MPa·m^1/2, respectively.

Key words: alumina; iron aluminide(Fe₃Al); composite

ISSN 1004-0609
CN 43-1238/TG
CODEN: ZYJXFK

ISSN 1003-6326
CN 43-1239/TG
CODEN: TNMCEW