J Mater Sci Technol ›› 2002, Vol. 18 ›› Issue (03): 251-253.

• Research Articles • Previous Articles     Next Articles

Formation and Oxidation Behavior of Al-Cu-Fe Quasicrystal

Chungen ZHOU, Huibin XU, Shengkai GONG, Guangming KANG   

  1. Department of Materials Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2002-05-28 Published:2009-10-10
  • Contact: Chungen ZHOU

Abstract: Al62.5Cu25Fe12.5 alloy was prepared by arc melting. It was found that the formation of quasicrystalline phase is related to the condition of annealing, such as temperature and duration. Weight gain of Al-Cu-Fe quasicrystal during the oxidation at 700 and 800ºC in dry air was measured by means of thermal balance. The oxidation kinetics showed that the quasicrystal has good oxidation resistance. Only a-Al2O3 was formed on Al62.5Cu25Fe12.5 quasicrystal. The surface morphologies of Al-Cu-Fe quasicrystal after isothermal oxidation for different times were observed.

Key words: Al-Cu-Fe quasicrystal, Oxidation, Morphology