论文部分内容阅读
本文的目的是研究三种不同的氧化基片(氧化铝、氧化镁及白云石)的润湿特性,以检验Fe-Cr合金在这些基片上的粘附功。利用固滴技术在H2气氛中1823 K下,对氧化基片上液滴(Fe-Cr合金)的接触角进行了研究。随着Cr浓度的增加在氧化铝和白云石基片上的接触角会稍微减小,但不会像在氧化镁基片上变化那么大。在测试基片中,氧化铝基片接触角最大,白云石基片接触角最小。因此,白云石的粘附功最大,这与实际工艺中观察到的结果相符。
The purpose of this paper is to investigate the wetting properties of three different oxide substrates (alumina, magnesia and dolomite) to examine the work of adhesion of Fe-Cr alloys to these substrates. The contact angle of droplet (Fe-Cr alloy) on the oxidized substrate was studied by solid-drop technique at 1823 K in H2 atmosphere. The contact angles on the alumina and dolomite substrates slightly decrease with increasing Cr concentration, but not as much on the magnesium oxide substrate. In the test substrate, the contact angle of the alumina substrate is the largest, and the contact angle of the dolomite substrate is the smallest. Therefore, dolomite has the largest adhesion work, which is consistent with the results observed in the actual process.