Abstract

Coatings are fabricated using plasma-ion sputtering and codeposition of ultradispersed Ta and Cd particles and Nb- and Mo-doped W and Cd particles. The fabricated coatings consist of a mixture of crystallized cadmium and the amorphized refractory metals. Subjecting the coatings to thermal annealing in vacuum at 800°C for 1 h results in complete evaporation of cadmium from the coatings and the formation of cellular structures, their light-absorbing capacity depending on doping with Nb and Mo. The Nb-doped tantalum coatings and Nb- and Mo-doped tungsten coatings exhibit the highest light absorption. The electrical resistance of fabricated black coatings is sufficient to drain static charge accumulating due to contact with near-Earth plasma.

中文翻译：

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人造地球卫星用多孔钽和钨黑涂层的制备

摘要

使用等离子体离子溅射和共沉积超分散的Ta和Cd颗粒以及Nb和Mo掺杂的W和Cd颗粒来制造涂层。制成的涂层由结晶的镉和非晶态的难熔金属的混合物组成。将涂层在真空中于800°C的温度下进行1小时的热退火会导致镉从涂层中完全蒸发并形成蜂窝结构，其光吸收能力取决于Nb和Mo的掺杂。Nb掺杂钽涂层Nb和Mo掺杂的钨涂层具有最高的光吸收率。制成的黑色涂层的电阻足以排出由于与近地等离子体接触而积累的静电荷。