Application of the method of layer-by-layer selective laser sintering of a metal powder for depositing capillary-porous coatings with a prescribed porosity onto heat-releasing surfaces is considered. Implementation of this method in experimental investigations of the boiling process on modified surfaces allows broad-range variations of the main parameters of microstructured capillary-porous coatings and other three-dimensional structures: material, porosity, amplitude (height), thickness of the residual layer and wavelength of capillary-porous coatings, and size and shape of three-dimensional ordered microtextures. It is demonstrated that the use of this technology can increase the heat transfer coefficient the case of boiling on the surface with a capillary-porous coating by several times as compared to the uncoated surface.

中文翻译：

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开发一种通过 3D 打印制造结构化毛细孔涂层的技术，以加强沸腾过程中的传热

考虑采用逐层选择性激光烧结金属粉末的方法在散热表面上沉积具有规定孔隙率的毛细孔涂层。这种方法在改性表面沸腾过程的实验研究中的实施允许微结构毛细孔涂层和其他三维结构的主要参数的广泛变化：材料、孔隙率、振幅（高度）、残留层的厚度毛细孔涂层的波长和波长，以及三维有序微纹理的尺寸和形状。结果表明，与未涂覆的表面相比，使用该技术可以将具有毛细管多孔涂层的表面沸腾的传热系数提高数倍。