Abstract A novel one-layer micrometre-sized TiC/TiN-based spectrally selective coating was designed and fabricated via spray method-laser cladding hybrid deposition in air. The laser cladding was used to obtain TiC/TiN-Ni/Mo cermet coatings with desirable optical properties. In particular, an absorptance (α) of ~84% and thermal emissivity (e) of ~5% at 300 K were calculated at a TiC/TiN weight ratio of 1:1. In addition, the thermal stability of the coating was outstanding after heat treatment at 650 °C for 200 h. The absorptance and emissivity of the 30 wt.% TiC-30 wt. %TiN-20 wt.% Ni-20 wt.% Mo cermet coatings were respectively 82% and 4%, respectively, at 650 °C. Furthermore, the cermet coating also exhibited excellent weatherability, indicateing that TiC/TiN-based cermets are suitable for spectrally selective materials. Moreover, the laser cladding was demonstrated as an improved and novel preparation technology for manufacture of solar selective absorbing coatings.

中文翻译：

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喷涂-激光熔覆混合沉积TiN/TiC-Ni/Mo太阳能吸收涂层的热稳定性和耐候性

摘要 采用喷涂法-激光熔覆混合沉积在空气中，设计并制备了一种新型的单层微米级TiC/TiN基光谱选择性涂层。激光熔覆用于获得具有理想光学性能的 TiC/TiN-Ni/Mo 金属陶瓷涂层。特别是，在 1:1 的 TiC/TiN 重量比下，在 300 K 下计算出~84% 的吸收率 (α) 和~5% 的热发射率 (e)。此外，涂层在 650°C 下热处理 200 小时后的热稳定性非常出色。30 wt.% TiC-30 wt. 的吸收率和发射率。在 650 °C 时，%TiN-20 wt.% Ni-20 wt.% Mo 金属陶瓷涂层分别为 82% 和 4%。此外，金属陶瓷涂层还表现出优异的耐候性，表明 TiC/TiN 基金属陶瓷适用于光谱选择性材料。而且，