J. Mater. Sci. Technol. ›› 2019, Vol. 35 ›› Issue (3): 432-439.DOI: 10.1016/j.jmst.2018.08.002

• Research Article • Previous Articles     Next Articles

Suppressing the anomalous rapid oxidation of Ti3AlC2 by incorporating TiB2

Chao Lia*(), Yuhai Qianb, Chunlei Maa, Shumin Wanga, Meishuan Lib   

  1. aLight Industry College of Liaoning University, Shenyang, 110036, China
    bShenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, China
  • Received:2018-02-07 Revised:2018-07-31 Accepted:2018-08-01 Online:2019-03-15 Published:2019-01-18
  • Contact: Li Chao
  • About author:

    1 These authors contributed equally to this work.

Abstract:

The oxidation behavior of Ti3AlC2-20TiB2 composite was studied at 500?°C-900?°C in air. The composite showed a very low oxidation rate and followed a logarithmic oxidation law. The in-situ incorporation of TiB2 suppressed the anomalous rapid oxidation of the substrate Ti3AlC2 occurred near 600?°C by forming a protective B2O3 glass layer, and also improved the oxidation resistance of the MAX phase at intermediate-temperature.

Key words: MAX phase, Ti3AlC2-TiB2 composite, Oxidation