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Microstructure and ablation behavior of Zr-Ti-Si-C multiphase coating fabricated by solid solution and in-situ reaction
Corrosion Science ( IF 7.4 ) Pub Date : 2021-09-20 , DOI: 10.1016/j.corsci.2021.109852
Anhong Shi 1 , Xin Yang 1 , Cunqian Fang 1 , Lei Chen 1 , Jinren Yi 1 , Xiao Luo 1 , Qizhong Huang 1
Affiliation  

The Zr-Ti-Si-C solid solution coatings were fabricated by solid solution and in-situ reaction methods, and effects of TiC on the microstructure and phase evolution, and ablation behavior of Zr-Ti-Si-C solid solution coatings were investigated. Results show that TiC was reacted with zirconium or silicon compounds to generate even-distributed ternary ZrxTi1−xC and quaternary (TixZr1−x)3SiC2 solid solution. The solid solution structure decreases the active oxidation of Si source, and reduces the depletion and evaporation of SiO2, forming a strengthened ZrO2-ZrTiO4-TiO2-SiO2 oxides layer with low oxygen diffusion coefficient, thereby enhancing the ablative property of the Zr-Ti-Si-C solid solution coatings.



中文翻译:

固溶原位反应制备Zr-Ti-Si-C多相涂层的显微组织和烧蚀行为

采用固溶法和原位反应法制备Zr-Ti-Si-C固溶体涂层,研究了TiC对Zr-Ti-Si-C固溶体涂层微观结构、相演化和烧蚀行为的影响. 结果表明,TiC与锆或硅化合物反应生成均匀分布的三元Zr x Ti 1-x C和四元(Ti x Zr 1-x ) 3 SiC 2固溶体。固溶结构降低了Si源的活性氧化,减少了SiO 2的消耗和蒸发,形成了强化的ZrO 2 -ZrTiO 4 -TiO 2 -SiO2氧化物层具有低氧扩散系数,从而提高了Zr-Ti-Si-C固溶体涂层的烧蚀性能。

更新日期:2021-09-28
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