Experimental study and modeling of high temperature oxidation of Nb-base in situ composites
Experimental study and modeling of high temperature oxidation of Nb-base in situ composites
复制标题
DOI：
10.1016/j.corsci.2008.11.004
复制
发表时间：
2009-02
影响因子：
8.3
通讯作者：
Dengzun Yao;Rui Cai;Chungen Zhou;J. Sha;Huiren Jiang
中科院分区：
文献类型：
--
作者：
Dengzun Yao;Rui Cai;Chungen Zhou;J. Sha;Huiren Jiang
研究了铌基原位复合材料在1100、1200和1250℃静态空气中的氧化行为。该反应遵循抛物线速率定律。氧化皮主要成分为TiNb2O7、TiNb10O29、TiO2、Nb2O5和SiO2。 Gesmundo等人提出的理论氧化模型。已用于分析铌基原位复合材料的现有氧化数据。结果表明，铌基原位复合材料的氧化速率与理论氧化模型预测的分析结果基本吻合，具有良好的近似性。
The oxidation behavior of Nb-base in situ composites in static air at 1100, 1200 and 1250°C has been studied. The reaction followed the parabolic rate law. The oxide scales were mainly composed of TiNb2O7, TiNb10O29, TiO2, Nb2O5and SiO2. The theoretical oxidation model proposed by Gesmundo et al. has been applied to analyze existing oxidation data of Nb-base in situ composites. The result shows that oxidation rate of the Nb-base in situ composites is basically accordance with the analytical results predicted by the theoretical oxidation model to a good approximation.