Paper Title:
The Isothermal Oxidation Behavior of Ti2AlN and Ti2AlN/TiN in Air
  Abstract

The isothermal oxidation behaviors at 800-1000°C for 20h in air of bulk Ti2AlN and Ti2AlN/TiN were investigated by TG, XRD and SEM coupled with EDS. The oxidation behaviors generally follow the parabolic law. The activation energies of Ti2AlN and Ti2AlN/TiN composite are 614.93 KJ∙mol-1 and 541.35 KJ∙mol-1 respectively. The antioxidation property of Ti2AlN/TiN composite is better than Ti2AlN. Oxidation process of single-phase Ti2AlN is composed by the outward diffusion of Al3+ and Ti4+, and inward diffusion of oxygen. Oxidation process of Ti2AlN/TiN composite consists of two parts: firstly, the oxidation of TiN, the oxidation temperature is 500 °C; the second step is the oxidation of Ti2AlN, carried out mainly in the 800-1000 °C.

  Info
Periodical
Advanced Materials Research (Volumes 306-307)
Chapter
Chapter 7: Composite Materials
Edited by
Shiquan Liu and Min Zuo
Pages
808-813
DOI
10.4028/www.scientific.net/AMR.306-307.808
Citation
M. Yan, Y. L. Chen, Y. Chang, J. X. Jiang, B. C. Mei, "The Isothermal Oxidation Behavior of Ti2AlN and Ti2AlN/TiN in Air", Advanced Materials Research, Vols. 306-307, pp. 808-813, 2011
Online since
August 2011
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Price
$32.00
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