Evaluation of the wettability of metal surfaces by micro-pure water by means of atomic force microscopy
Evaluation of the wettability of metal surfaces by micro-pure water by means of atomic force microscopy
复制标题
原子力显微镜评价微纯水对金属表面的润湿性
DOI：
10.1016/s0169-4332(02)00147-2
复制
发表时间：
2002
影响因子：
6.7
通讯作者：
M. Kido
中科院分区：
文献类型：
--
作者：
Rongguang Wang;Li Cong;M. Kido
用数字显微镜和原子力显微镜观察了抛光、空气氧化和纯水浸泡纯铬、镍、铁和SUS304钢表面的润湿特性。测量并比较了宏观润湿接触角和微观润湿接触角，讨论了表面组成对润湿性的影响。表面不仅代表纯金属(铬、镍和铁)，而且还代表它们的氧化物和氢氧化物。纯铬、镍、铁和SUS304钢的宏观润湿性和微观润湿性不同。所有样品的微观润湿性均高于宏观润湿性，且数值分散性较大。微观水滴比宏观水滴更稳定。润湿性也随着湿抛光、空气氧化、纯水浸泡等不同处理方法引起的表面成分的变化而变化。
The wetting characteristics of polished, air oxidized and pure water immersed pure chromium, nickel, iron and SUS304 steel surfaces were observed with a digital microscope and an atomic force microscope. The macro- and micro-wetting contact angles were measured and compared and the influence of the surface composition on wettabilities is discussed. The surfaces represent not only pure metals (chromium, nickel and iron) but also their oxides and hydroxides. The macro- and micro-wettabilities were different for pure chromium, nickel, iron and SUS304 steel. The micro-wettabilities were higher than the macro-wettabilities for all specimens and the scatter of values was large. The micro-water droplets were more stable than the macro-water. The wettabilities also changed with the change in surface composition resulting from different pretreatments such as wet polishing, air oxidation and pure water immersion.