Effects of Transition Metals on the Oxidation Behavior of ZrB₂ Ceramics
Abstract
The effects of transition metal additives on the oxidation behavior of ZrB2 ceramics at 1600⁰C were investigated. Additions of W, Mo, or Nb improved the oxidation resistance of ZrB2 even after evaporation of the protective B2O3 layer. The oxide layers were composed of an outer layer that was porous and had light color and an inner layer that was dense and appeared dark. Additions of Mo or Nb were more effective than W at improving the oxidation resistance of ZrB2 at 1600⁰C due to a lower evaporation rate for B2O3 glasses containing Nb and Mo compared to W.
Recommended Citation
M. K. Dehdashti et al., "Effects of Transition Metals on the Oxidation Behavior of ZrB₂ Ceramics," Corrosion Science, vol. 91, pp. 224 - 231, Elsevier Ltd, Feb 2015.
The definitive version is available at https://doi.org/10.1016/j.corsci.2014.11.019
Department(s)
Materials Science and Engineering
Keywords and Phrases
A. Ceramic; B. SEM; C. Oxidation; Ceramic materials; Evaporation; Oxidation resistance; Inner layer; Light color; Outer layer; Oxidation behaviors; Oxide layer; Transition metal additives
International Standard Serial Number (ISSN)
0010-938X
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2015 Elsevier Ltd, All rights reserved.
Publication Date
01 Feb 2015
