Journal of South China University of Technology(Natural Science Edition) ›› 2004, Vol. 32 ›› Issue (9): 46-49.

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Formation Mechanism and Effecting Factors of the Gas Holes in the Al2O3 /Al Lanxide Composites

Zhou Xi- ya Gao Qin   

  1. 1.College of Materials Science and Engineering, South China Univ.of Tech., Guangzhou 510640, Guangdong, China;
    2.Dept.of Materials Engineering, Dalian Univ.of Tech., Dalian 116023, Liaoning, China
  • Received:2003-12-16 Online:2004-09-20 Published:2015-09-09
  • Contact: 周曦亚(1966-), 男, 副研究员, 主要从事陶瓷复合材料方面的研究. E-mail:imxyzhou@scut.edu.cn
  • About author:周曦亚(1966-), 男, 副研究员, 主要从事陶瓷复合材料方面的研究.

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Abstract: This paper puts forward the mechanism of the gas hole formation in the Al 2 O 3 /Al Lanxide composites formed by the direct oxidation of molten aluminum alloy based on the experiments.The effects of the processing tem-perature and the contents of doped elements Mg and Si in the parent alloy on the gas hole contents of Al 2 O 3 /Al Lanx-ide were also investigated .It is revealed that the gas hole contents in the Al 2 O 3 /Al Lanxide composites decrease with the increase in the processing temperaure and with the decrease in the Mg content in the parent alloy, and that the con-tent of Si in the parent alloy has little effect on the gas hole contents.

Key words: Al2O3/Al Lanxide composite, direct oxidation, gas hole, aluminum alloy