Microstructural features of the ZrO2 interfacial coatings on SiC fibers before and after exposition to air at high temperatures
Microstructural features of the ZrO2 interfacial coatings on SiC fibers before and after exposition to air at high temperatures
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DOI：
10.1016/j.jeurceramsoc.2007.11.008
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发表时间：
2008
影响因子：
5.7
通讯作者：
N. Baklanova;O. I. Kiselyova;A. Titov;T. Zima
中科院分区：
文献类型：
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作者：
N. Baklanova;O. I. Kiselyova;A. Titov;T. Zima
稀土稳定的氧化锆溶胶被用作简单、易于加工和精确可控的前体，用于在市售SiC基纤维上制备四氧化锆界面涂层。四氧化锆界面涂层可以应用于不同类型的SiC纤维，而不会降低纤维强度。通过各种分析技术，包括扫描电子显微镜/能量色散分析，透射电子显微镜，原子力显微镜在各种模式下，和显微拉曼光谱的涂层SiC纤维的形态，成分，结构，纳米浮雕和抗氧化性进行了评估。结果表明，SiC基纤维上ReZrO 2界面涂层的微观结构特性可以解释不同类型纤维的行为差异。
Sols of rare earth stabilized zirconia were used as simple, readily processable and accurate controllable precursors for the tetragonal zirconia interfacial coatings on commercially available SiC-based fibers. The tetragonal zirconia interfacial coatings can be applied to different types of SiC fibers without degrading fiber strength. The morphology, composition, structure, nanorelief and oxidation resistance of coated SiC fibers were evaluated by various analytical techniques, including scanning electron microscopy/energy dispersive analysis, transmission electron microscopy, atomic force microscopy in various modes, and micro-Raman spectroscopy. It was shown that the microstructural peculiarities of the ReZrO2interfacial coatings on SiC-based fibers may explain some of the differences in the behavior of different types of fibers.