To develop an ultra-high-temperature resistant coating for a reusable thermal protection system, the preparation of a tantalum-based MoSi₂-Mo coating by a new two-step process of multi-arc ion plating and halide activated pack cementation is presented. The coating has a dense structure and is well compatible with the tantalum substrate, which can be thermally shocked from room temperature to 1750 °C for 360 cycles without failure. The mechanism of the coating’s excellent resistance to high-temperature thermal shocks is that a strong-binding gradient interface and a dense SiO₂ oxide scale with good oxygen resistance are formed by the high-temperature self-diffusion of Si.

为了开发用于可重复使用的热保护系统的耐超高温涂层，提出了通过多弧离子镀和卤化物活化包胶结的新两步工艺制备钽基MoSi ₂ -Mo涂层。该涂层具有致密的结构，并且与钽基板具有良好的相容性，可以将其从室温热震至1750°C，持续360个循环，而不会发生故障。涂层对高温热冲击具有出色的抵抗性的机理是，Si的高温自扩散形成了牢固的结合梯度界面和致密的SiO ₂氧化皮，并具有良好的耐氧性。