J Mater Sci Technol ›› 2001, Vol. 17 ›› Issue (06): 646-648.

• Research Articles • Previous Articles     Next Articles

Fabrication of Al/Al2O3 composites and FGM

Hong TAO, Chengji DENG, Lianmeng ZHANG, Runzhang YUAN   

  1. State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China
  • Received:2000-11-27 Revised:2001-01-08 Online:2001-11-28 Published:2009-10-10
  • Contact: Chengji DENG

Abstract: Al/Al2O3 composites of different ratios were hot-press sintered at 575 similar to 640℃ under a pressure of 30 MPa for 2 h in a vacuum furnace. It was found that the relative density of the Al/Al2O3 composites could be increased evidently with the rise of sinter temperature. No reaction occurred between Al and Al2O3 at the sinter temperatures. Under 640℃-30 MPa-2 h experimental condition, Al/Al2O3 system FGM was successfully fabricated, and its density range changed quasi-continuously from 2.887x10(3) kg/m(3) to 3.1909x10(3) kg/m3 within the middle 1.0 mm thickness range.

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