Synthesis and oxidation resistance of MoAlB single crystals
Synthesis and oxidation resistance of MoAlB single crystals
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DOI：
10.1016/j.ceramint.2018.10.170
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发表时间：
2019-02
影响因子：
5.2
通讯作者：
O. Shi;Ludi Xu;Anna Jiang;Qiang Xu;Youtao Xiao;Degui Zhu;S. Grasso;Chunfeng Hu
中科院分区：
文献类型：
--
作者：
O. Shi;Ludi Xu;Anna Jiang;Qiang Xu;Youtao Xiao;Degui Zhu;S. Grasso;Chunfeng Hu
Needle and plate like single MoAlB crystals were synthesized by reacting MoB and Al powders. The growth of MoAlB single crystals was promoted by either increasing dwell temperature or by adding excess of Al. When raising the temperature from 1100 to 1300 °C, the shape of MoAlB single crystals transformed from needle to plate like. The single crystals exhibited anisotropic oxidation resistance where the (0l0) plane showed a better oxidation resistance compared to (l00) and (00l) planes. The oxidization weight gain tested at 1100 °C and weight loss at 1300 °C suggests the beneficial role of a dense Al2O3scale formed on the plate-like single crystals.
