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首页> 外文期刊>The Journal of Chemical Physics >Does water need a A-type transition?
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Does water need a A-type transition?

机译：水需要A型过渡吗？

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摘要

The current difficulty in measuring the viscosity andthermodynamic properties of deeply supercooled water hasled to a variety of conjectures on its structural change. Manyof these have been supported by less relevant studies ofchemically impure water in biological materials and of"pure" water in nanoconfinement. Soper' discussed how ex-trapolation, interpolation, and untested combination of prese-lected data had been used to reach some of these conjectures.More recently, the heat capacity Cp of bulk water has beenassumed to be the same as that of water confined to nano-porous Si02 gel. On that basis, it has been conjectured thatsupercooled bulk water would show a broad X-type transitionat 225 K,2-4 resembling the X-type disorder-order transitionof binary metal alloys and the orientational transition of C60.
机译：当前测量深度过冷水的粘度和热力学性质的困难导致了对其结构变化的各种猜测。其中许多都得到了不太相关的研究的支持，这些研究对生物材料中化学不纯净的水和纳米约束中的“纯净”水进行了研究。索珀（Soper）讨论了如何使用推算，插值和未经检验的组合来预测这些数据。最近，假设散装水的热容量Cp与局限在一定范围内的水的热容量相同。纳米多孔SiO 2凝胶。在此基础上，推测过冷的散装水在225 K，2-4处将显示宽泛的X型转变，类似于二元金属合金的X型无序转变和C60的取向转变。

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