The crack tip: a nanolab for studying confined liquids.
The crack tip: a nanolab for studying confined liquids.
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裂纹尖端：用于研究受限液体的纳米实验室。
DOI：
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发表时间：
2008
影响因子：
8.6
通讯作者：
M. Ciccotti
中科院分区：
文献类型：
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作者：
A. Grimaldi;M. George;G. Pallares;C. Marlière;M. Ciccotti
我们研究了在潮湿的可控气氛中，熔融二氧化硅尖锐裂纹表面之间的纳米级凝聚液相的平衡性质。用原位原子力显微镜位相成像测量了凝聚相沿断裂方向的扩展，结果表明，这是由相对裂纹面之间的临界距离决定的，该距离是湿度的递增函数。目前的技术在纳米尺度上测量受限液体的性质以及模拟玻璃中慢裂纹扩展的物理和化学方面是非常有前途的。
We study the equilibrium properties of a liquid phase condensed at the nanoscale between the surfaces of a sharp crack in fused silica in a moist controlled atmosphere. The extension of the condensed phase along the fracture is measured by in situ atomic force microscopy phase imaging and it is shown to be determined by a critical distance between the opposite crack surfaces, which is an increasing function of humidity. The present technique is very promising for measuring the properties of confined liquids at the nanoscale as well as for modeling the physics and chemistry of slow crack propagation in glasses.