Abstract: Ion-plating and ion-beam mixing combination technology was employed to prepare surface alloys on copper tubes. Elements chosen for the purpose include Cr, Fe, Al, N, Bi, Sb, Sn, Se, and In. Experimental results of steam condensation on the external surface of the vertical copper tubes were obtained. The surface characteristics of the Cu-Cr and Cu-Fe alloy surfaces were analysed by using XPS, AES and AES-PRO of PHI-550 Multiple Function Electronic Spectroscopy. The mechanism for dropwise condensation formed on the new surfaces was presented.

摘要： 提出采用离子镀技术加离子束混合的工艺,在紫铜圆管外表层,制备Cr、Fe、Al、N、Bi、Sb、Sn、Se、In的铜基合金材料.对每种表面进行了垂直管外水蒸汽的冷凝实验.对Cu-Gr和Cu-Fe表面,用PHI-550型多功能电子能谱仪的XPS、AES和AES-PRO三种功能,进行化学成分及相对含量,主要元素的价态及其在表面法线方向的浓度分布以及合金层厚度等内容的分析.对能够形成滴状冷凝的表面的机理进行了分析.