Adsorption of glycidoxypropyl-trimethoxy-silane on alpha and beta phases of titanium alloy Ti-6.5Al-1Mo-1V-2Zr

作者：Liu Jian hua; Zhan Zhong wei; Yu Mei^*; Li Song mei; Wang Qiang; Zhang Jun; Wang Miao

来源：Surface and Interface Analysis, 2012, 44(7): 863-869.

DOI：10.1002/sia.4923

• adsorption
• glycidoxypropyl-trimethoxy-silane (GTMS)
• titanium alloy
• alloy phase

The adsorption of glycidoxypropyl-trimethoxy-silane (GTMS) on alpha and beta phases of titanium alloy Ti-6.5Al-1Mo-1V-2Zr was studied. The morphology and composition of coated alloy were investigated by using field-emission scanning electron microscopy, energy dispersive spectroscopy, and atomic force microscopy. The quantitative characterization of GTMS adsorption was carried out by using XPS. The results showed that the beta phase particles exhibited better ability to adsorb GTMS molecules than the alpha phase, especially at lower concentrations of GTMS, which resulted in a relatively nonuniform silane coating. The differences in the adsorption ability between the alpha phase and beta phase particles were attributed to the different alloying elements contained in them and different characteristics of the oxides formed on them. Uniform adsorption of GTMS on the overall metal surface was achieved by increasing the concentration of GTMS to 1 vol.%.

• 出版日期2012-7
• 单位北京航空航天大学