Cyclic oxidation of Ti3AlC2 at 1000–1300 °C in air |
| |
| Authors: | X.K. Qian X.D. He Y.B. Li Y. Sun H. Li D.L. Xu |
| |
| Affiliation: | aCenter for Composite Materials and Structures, Harbin Institute of Technology, Harbin 150080, PR China;bSchool of Materials Science and Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, PR China |
| |
| Abstract: | The cyclic-oxidation behavior of Ti3AlC2 was investigated at 1000–1300 °C in air for up 40 cycles. It was revealed that Ti3AlC2 had excellent resistance to thermal cycling. The cyclic oxidation of Ti3AlC2 basically obeyed a parabolic law. In all cases, the scales were dense, resistant to spalling and highly stratified. The inner continuous α-Al2O3 layer was well adhesive, while the outermost layer changed from rutile TiO2 at temperatures below 1100 °C to Al2TiO5 at 1200 and 1300 °C, respectively. At 1300 °C, a mechanical-keying structure of inner Al2O3 to the Ti3AlC2 substrate formed, which improved the resistance to scale-spallation. |
| |
| Keywords: | A. Ceramic B. SEM B. XRD C. Oxidation C. Interfaces |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
