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首页> 外文期刊>Materials Letters >Micro pure water wettability evaluation with an AC no-contact mode of atomic force microscope
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Micro pure water wettability evaluation with an AC no-contact mode of atomic force microscope

机译：使用交流非接触模式的原子力显微镜进行微纯水润湿性评估

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摘要

The macro and micro water droplets on natural mica and pure chromium surface were observed with an AC no-contact mode of atomic force microscope. The micro pure water wettabilities of mica and chromium were evaluated according to the observation results. The observation of micro water droplets on mica and pure chromium surfaces becomes possible with the AC no-contact mode of atomic force microscope even if the cantilever is not metal film-coated and not applied with any bias voltage. The micro water wettabilities on mica and pure chromium surfaces were evaluated by the equation theta = 2tan~(-1) (h/r), where theta is the contact angle between micro water droplet and substrate, h is the height of the water droplet and r is the radius of the water droplet. The wettabilities of mica and pure chromium are different from each other and the micro wettability is higher than the macro one even on the same material surface according to the measured data in this paper.
机译：采用原子力显微镜交流非接触模式观察天然云母和纯铬表面的宏观和微观水滴。根据观察结果，对云母和铬的微纯水润湿性进行了评价。使用原子力显微镜的交流非接触模式可以观察云母和纯铬表面上的微水滴，即使悬臂没有金属膜涂层并且没有施加任何偏压电压。通过方程 theta = 2tan~（-1） （h/r） 评估云母和纯铬表面的微水润湿性，其中 theta 是微水滴与基质的接触角，h 是水滴的高度，r 是水滴的半径。根据本文的实测数据，云母和纯铬的润湿性彼此不同，即使在同一材料表面上，微观润湿性也高于宏观润湿性。

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