ABSTRACT

In this work the influence of picosecond laser (ps) irradiation (PLI) on the properties of black Cr electrodeposited on an SS substrate has been investigated. XPS has shown that black Cr treatment by PLI changes the concentrations of elements on the black Cr coating surface. Furthermore, it diminishes the quantity of CrN compound, while increasing the quantity of metallic chromium (Cr^o). Full reflectance (RD) of black Cr after treatment with PLI and before treatment in the visible region (300–800 nm) were quite close. Thermal tests at a temperature of 200 ^oC showed that the adhesion between black Cr treated with PLI and SS is better than that of black chromium not treated with PLI. Thus, such a black Cr absorber may be used in solar water heaters.

摘要

在这项工作中，研究了皮秒激光 (ps) 辐照 (PLI) 对电沉积在 SS 基板上的黑色 Cr 性能的影响。XPS 表明，通过 PLI 处理黑色 Cr 会改变黑色 Cr 涂层表面上的元素浓度。此外，它减少了CrN化合物的量，同时增加了金属铬（Cr ^o）的量。在用 PLI 处理之后和在可见区域（300-800 nm）处理之前，黑色 Cr 的全反射率（RD）非常接近。在 200 ^o C 温度下的热试验表明，经过 PLI 处理的黑铬与 SS 之间的附着力优于未经 PLI 处理的黑铬。因此，这种黑色Cr吸收剂可以用于太阳能热水器中。