The effect of metallic nanocoatings on the wetting of silicon oxide with lead-based filler melts (Pb–15 wt.% In and Pb–2.5 wt.% Ag) was studied by the sessile drop method with capillary cleaning of the melt in 1 ∙ 10–3 Pa vacuum at 500°C. The dependence of the contact angle between the filler melt and single coatings (Ti, Nb, Cr, V, Mo) on their thickness δ is shown: the contact angle decreases linearly (from the angle for silicon oxide to the angle for ‘threshold’ coating thickness) with increasing coating thickness. The ‘threshold’ coating thickness for different metals depends on the chemical affinity of the coating metal to oxygen. The higher the chemical affinity, the greater the ‘threshold’ thickness coating. The immobilization (adhesive bonding) of metal coatings on the substrate surface is determined by the contact interaction of SiO2 and the coating metal. The choice of metal couples for Mo–Cu, Nb–Cu, V–Cu, Cr–Cu, and Ti–Cu double coatings deposited on SiO2 is due to various metal interactions. The dependences of contact angle on thickness, the second layer (Cu coating) having constant thickness δCu of 100 nm, are similar in nature to that for a single coating. In these systems, wetting improves linearly with increasing coating thickness in the region of small δ. The wetting of the metallic coating deposited on the oxide surface by metallic filler melt is determined by the coating thickness (amount of metal deposited), coating structure, affinity of the coating metal to oxygen (coating–substrate adhesive attraction) promoting the shape of ‘islands’ and the ease of dispersion, dissolution of the coating in the filler melt, and wettability of the adhesive metal oxide coating.

中文翻译：

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沉积在氧化硅上的金属纳米涂层对填料熔体润湿的影响 I. 用填料熔体润湿沉积在 SiO2 上的 Ti、Nb、Cr、V 和 Mo 纳米涂层

金属纳米涂层对氧化硅与铅基填料熔体（Pb–15 wt.% In 和 Pb–2.5 wt.% Ag）润湿的影响通过固滴法在 1 ∙ 中对熔体进行毛细管清洗来研究500°C 时为 10–3 Pa 真空。显示了填料熔体和单一涂层（Ti、Nb、Cr、V、Mo）之间的接触角对其厚度 δ 的依赖性：接触角线性减小（从氧化硅的角度到“阈值”的角度）涂层厚度）随着涂层厚度的增加。不同金属的“阈值”涂层厚度取决于涂层金属对氧的化学亲和力。化学亲和力越高，涂层的“阈值”厚度就越大。金属涂层在基材表面上的固定（粘接）是由 SiO2 和涂层金属的接触相互作用决定的。选择沉积在 SiO2 上的 Mo-Cu、Nb-Cu、V-Cu、Cr-Cu 和 Ti-Cu 双涂层的金属对是由于各种金属相互作用。接触角对厚度的依赖性，具有恒定厚度 δCu 为 100 nm 的第二层（Cu 涂层）在性质上与单个涂层相似。在这些系统中，润湿性随着小δ区域内涂层厚度的增加而线性提高。金属填料熔体沉积在氧化物表面的金属涂层的润湿性取决于涂层厚度（沉积的金属量）、涂层结构、