The effect of the thickness and chemical composition of the nickel surface on the vacuum density of articles made of VK94 ceramic after soldering with PSr72 solder was studied. It was found that for nickel layer thickness < 3 μm elemental oxides (aluminum, silicon, manganese, molybdenum), which are part of the metallization, are present in its surface. The existing methods of controlling the nickel layer by means of attendant samples do not guarantee surface quality in large batches of articles. A non-destructive method of controlling the thickness of the nickel directly on the articles is proposed. The efficiency of the method makes it possible to check 100% of the articles directly in production. The method is based on measuring the thermo-EMF, which GOST 9.302–88 provides for checking the thickness of galvanic coatings. The method is used at a number of enterprises producing metallized ceramic.

研究了镍表面的厚度和化学成分对 VK94 陶瓷制品用 PSr72 焊料焊接后真空密度的影响。发现对于小于 3 μm 的镍层厚度，作为金属化部分的元素氧化物（铝、硅、锰、钼）存在于其表面。现有的通过随附样品控制镍层的方法不能保证大批量物品的表面质量。提出了一种直接控制物品上镍厚度的非破坏性方法。该方法的效率使得可以在生产中直接检查 100% 的物品。该方法基于测量热电动势，GOST 9.302-88 提供用于检查电镀涂层的厚度。