Preparation and characterization of YSZ abradable sealing coating through mixed solution precursor plasma spraying
Preparation and characterization of YSZ abradable sealing coating through mixed solution precursor plasma spraying
复制标题
混合溶液前驱体等离子喷涂YSZ耐磨密封涂层的制备及表征
DOI：
10.1016/j.ceramint.2019.03.058
复制
发表时间：
2019-06
影响因子：
5.2
通讯作者：
Zhang W.
中科院分区：
文献类型：
--
作者：
Wang Z.;Du L.;Lan H.;Huang C.;Zhang W.
通过等离子喷涂氧化钇稳定氧化锆（YSZ）溶液前驱体与YSZ纳米颗粒的混合物，制备了YSZ陶瓷基可磨损密封涂层。采用扫描电镜（SEM）、透射电镜（TEM）和X射线衍射（XRD）分析了可磨耗封严涂层的微观结构和物相组成。此外，涂层的机械性能，高温氧化，和摩擦学性能进行了系统的研究。结果表明，YSZ纳米粒子的加入提高了涂层的孔隙率和结合强度，降低了涂层的硬度。通过向涂料中添加5g纳米颗粒来实现最佳性能值。涂层在1150 °C下进行了10次循环热震试验，保持了优异的热稳定性。8 YSZ-5涂层的氧化常数提高到5.540 × 10− 4，并在1150 °C下表现出显著的氧化动力学。与传统的陶瓷基可磨耗封严涂层相比，混合溶液前驱体涂层的摩擦系数显著降低。结果表明，混合溶液前驱体等离子喷涂提高了可磨耗封严涂层的应用性能。
Yttria-stabilized zirconia (YSZ) ceramic matrix abradable sealing coatings were prepared by plasma spraying of a blend of YSZ solution precursor with YSZ nano-particles. The microstructure and phase compositions of the prepared abradable sealing coatings were analyzed by scanning electron microscopy (SEM), transmission electron microscopy (TEM), and X-ray diffraction (XRD). In addition, the mechanical, high-temperature oxidation, and tribological properties of the coatings were systematically investigated. The results show that addition of YSZ nano-particles increased porosity and bond strength and decreased the hardness of the coating. The optimum performance value was achieved by addition of 5 g nano-particles into the coating. The coatings maintained excellent thermal stability through a ten-cycle thermal shock test at 1150 °C. The 8YSZ-5 coating had an improved oxidation constant of 5.540 × 10−4and exhibited remarkable oxidation kinetics at 1150 °C. The friction coefficient of the mixed solution precursor coating was remarkably decreased compared with a traditional ceramic matrix abradable sealing coating. The results indicate that mixed solution precursor plasma spraying increased abradable sealing coating application performance.
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影响因子：
5.4
作者：
Du Lingzhong;Zhang Wenting;Zhang Weigang;Zhang Tiantian;Lan Hao;Huang Chuanbing
通讯作者：
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影响因子：
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DOI：
--
发表时间：
2019
期刊：
--
影响因子：
--
作者：
通讯作者：
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DOI：
10.1016/j.surfcoat.2012.08.014
发表时间：
2012-05
期刊：
International Thermal Spray Conference
影响因子：
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作者：
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通讯作者：
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