Fabrication and characteristics of a HfC/TiC multilayer coating by a vacuum plasma spray process to protect C/C composites against oxidation
Fabrication and characteristics of a HfC/TiC multilayer coating by a vacuum plasma spray process to protect C/C composites against oxidation
复制标题
DOI：
10.1016/j.corsci.2020.109068
复制
发表时间：
2021
影响因子：
8.3
通讯作者：
Ho Seok Kim;B. Kang;Seong-Man Choi
中科院分区：
文献类型：
--
作者：
Ho Seok Kim;B. Kang;Seong-Man Choi
采用真空等离子喷涂（VPS）技术在SiC涂层C/C复合材料表面制备了碳化铪/碳化钛多层涂层。分析了HfC/TiC多层涂层的组织、成分、结合强度和烧蚀性能。在界面处未观察到裂纹和分层。此外，在涂层中没有观察到氧化层或杂质。结合强度上级优于HfC单层涂层。烧蚀实验后，通过质量去除率、表面温度、微观结构和成分分析，证实HfC/TiC多层涂层能有效保护碳复合材料。
A multilayer coating of hafnium carbide and titanium carbide was fabricated on SiC-coated carbon/carbon(C/C) composite using a vacuum plasma spraying (VPS) system. The microstructure, composition, adhesion strength and ablation performance of the HfC/TiC multilayer coating were analyzed. Cracks and delamination were not observed at the interfaces. Moreover, oxidized layers or impurities were not observed in the coated layer. The adhesive strength was superior to the HfC single layer coating. After the ablation experiment, based on the mass removal rate, surface temperature, microstructure, and compositional analysis, it was confirmed that the HfC/TiC multilayer coating can effectively protect the carbon composite material.