片状交联结构氧化铝/铝复合粉体的制备研究
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摘要
真空、1300～1500℃条件下,以颗粒状氧化铝粉末和铝粉为原料,制备了片状交联结构氧化铝/铝复合粉体。XRD和SEM分析结果表明:随着氧化铝和铝之间反应的进行,氧化铝颗粒被刻蚀为片状结构,残留的金属铝包裹于氧化铝颗粒表面。原料氧化铝与铝的配比为5∶1. 5时,在1400℃下加热20 min后,基本形成片状交联结构的氧化铝/铝复合粉体。
Alumina/aluminum composite powders with flaky cross-linked structure were prepared at 1300-1500 ℃ in vacuum,using granular alumina powder and aluminum powder as raw materials. XRD and SEM results show that with the proceeding of the reaction between alumina and aluminum,the alumina particles are etched into flaky structure,and coated with the residual aluminum. After the raw materials of alumina and aluminum with a ratio of 5∶ 1. 5 are heated at 1400 ℃ for 20 min,the alumina/aluminum composite powder with a flaky cross-linked structure is basically formed.
Alumina/aluminum composite powders with flaky cross-linked structure were prepared at 1300-1500 ℃ in vacuum,using granular alumina powder and aluminum powder as raw materials. XRD and SEM results show that with the proceeding of the reaction between alumina and aluminum,the alumina particles are etched into flaky structure,and coated with the residual aluminum. After the raw materials of alumina and aluminum with a ratio of 5∶ 1. 5 are heated at 1400 ℃ for 20 min,the alumina/aluminum composite powder with a flaky cross-linked structure is basically formed.
引文
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[3]王燕,朱晓林,朱宇宏,等.金属基复合材料概述[J].中国标准化. 2013(5):33-37
[4] Chawla K K,Chawla N. Metal matrix composites:automotive applications[M]. Encyclopedia of Automotive Engineering. John Wiley&Sons,Ltd,2014.
[5] Gudlur P,Boczek A,Radovic M,et al. On characterizing the mechanical properties of aluminum-alumina composites[J]. Mater. Sci. Eng. A,2014,590:352-359.
[6] Bao S,Tang K,Kvithyld A,et al. Wettability of aluminum on alumina[J]. Metall. Mater. Trans. B,2011,42:1358-1366.
[7] Kumar G B V,Rao C S P,Selvaraj N. Mechanical and tribological behavior of particulate reinforced aluminum metal matrix composites-review[J].J. Miner. Mater. Charact. Eng,2011,10:59-91.
[8] Kok M. Production and mechanical properties of Al2O3particle-reinforced 2024 aluminium alloy composites[J]. J. Mater. Process. Tech.,2005,161:381-387.
[9] Ebrahimnejad A,Sajjadi S A. Damage mechanisms in aluminum-matrix composites reinforced with nano-alumina particles[J]. Int. J. Mater. Res.,2015,106:1107-1110.
[10] Mazahery A,Shabani M O. Investigation on mechanical properties of nano-Al2O3-reinforced aluminum matrix composites[J]. J. Compos. Mater.,2011,45:2579-2586.
[11] Mccormick A L,Aghajanian M K,Marshall A L. The effect of particle size,particle loading and thermal processing conditions on the properties of alumina reinforced aluminum metal matrix composites[J]. Ceram. Eng. Sci. Proc.,2013,30:105-111.
[12] Shao J C,Xiao B L,Wang Q Z,Ma Z Y,Yang K. An enhanced FEM model for particle size dependent flow strengthening and interface damage in particle reinforced metal matrix composites[J]. Compos. Sci. Technol,2011,71:39-45.
[13] Ducret D,Guerjouma R E,Guy P,et al. Characterisation of anisotropic elastic constants of continuous alumina fibre reinforced aluminium matrix composite processed by medium pressure infiltration[J]. Compos. Part A:Applied Science and Manufacturing,2000,31:45-55.
[14]潘浩,范根莲,谭占秋,等.纳米Al2O3增强铝基复合材料的制备技术和发展方向[J].材料导报,2015,29(1):36-42.
[15] Samiee A. Influence of surface modification of alumina on improvement of wetability in aluminium matrix composite[J]. Advances in Materials Science&Engineering,2014,2014:117-124.
[16]张笑,冯月斌,陈阵,等. Al2O歧化法制备微细Al2O3/Al复合粉体[J].硅酸盐通报,2017,36(8):2668-2672.
[17] Sangghaleh A,Halali M,Sangghaleh A,et al. An investigation on the wetting of polycrystalline alumina by aluminium[J]. Journal of Materials Processing Technology,2008,197(1):156-160.