Microstructural features and oxidation resistance of (Ti, Zr)C solid solution nanofibers fabricated using polymeric precursors
Microstructural features and oxidation resistance of (Ti, Zr)C solid solution nanofibers fabricated using polymeric precursors
复制标题
使用聚合物前驱体制备的（Ti，Zr）C固溶体纳米纤维的微观结构特征和抗氧化性
DOI：
10.1016/j.ceramint.2019.08.201
复制
发表时间：
2019-12-15
影响因子：
5.2
通讯作者：
Tang, Yufei
中科院分区：
文献类型：
--
作者：
Li, Fuping;Wang, Weihua;Tang, Yufei
与整体过渡金属碳化物相比，过渡金属碳化物固溶体陶瓷具有更高的硬度和更好的抗氧化性。在本通讯中，（Ti, Zr）C固溶体纳米纤维成功地通过静电纺丝聚合物前驱体制备。研究了n (Ti)/n （Zr）对纳米纤维微观结构的影响。当n (Ti)/n (Zr) = 4和3时，1600℃形成（Ti0.8Zr0.2）C和（Ti0.75Zr0.25）C的完全固溶体。随着(Ti)/n （Zr）减小到2，出现富Ti相和富Zr相。采用非等温法对制备的纳米纤维的抗氧化性能进行了测试。与TiC纳米纤维相比，（Ti, Zr）C固溶体纳米纤维的氧化温度有所提高。
Solid solution ceramics of transition-metal carbides possess higher hardness and better oxidation resistance in comparison with monolithic transition-metal carbides. In this communication, (Ti, Zr)C solid solution nanofibers were successfully fabricated through electrospinning using polymeric precursors. The effect of n (Ti)/n (Zr) on the microstructure of nanofibers was investigated. Complete solid solutions of (Ti0.8Zr0.2)C and (Ti0.75Zr0.25)C were formed at 1600 degrees C when the value of n (Ti)/n (Zr) equal to 4 and 3, respectively. With a decrease inn (Ti)/n (Zr) to 2, Ti-rich and Zr-rich phases appear. The oxidation resistance of the fabricated nanofibers was tested by a non-isothermal method. The oxidation temperature of (Ti, Zr)C solid solution nanofibers is improved compared to TiC nanofibers.