摘要
Al2O3 matrix composites reinforced with Fe3Al nano-particles were fabricated by hot processing at 1 4501 600 ℃. 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 832 MPa and 7.96 MPa·m1/2, respectively.
Al_2O_3 matrix composites reinforced with Fe_3Al nano-particles were fabricated by hot processing at 1 4501 600 ℃. The effect of Fe_3Al content on the densification, mechanical properties and microstructure of the composites was investigated. The results show that some elongated Al_2O_3 grains are observed. Fe_3Al particles are mainly situated at grain boundaries of the matrix while smaller particles are trapped within the alumina grains. The addition of Fe_3Al nanoparticles improves the mechanical properties of alumina. The maximum strength and toughness of the Fe_3Al/Al_2O_3 nanocomposites are 832 MPa and 7.96 MPa·m^(1/2), respectively.
出处
《中国有色金属学会会刊：英文版》
CSCD
2003年第6期1376-1380,共5页
Transactions of Nonferrous Metals Society of China
基金
Project(5 0 2 42 0 0 8)supportedbytheNationalNaturalScienceFoundationofChinaandproject(Y2001F01)supportedbytheNaturalScienceFoundationofShandongProvince ,China
