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 Zr_xTi_1−xC and quaternary (Ti_xZr_1−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.

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。