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Updated: Jan 20, 2026

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重视堆叠无序冰的立方度:冰是在中层层中形成的

Kunimitsu Morishige¹

¹Department of Chemistry, Okayama University of Science, 1-1 Ridai-Cho, Kita-Ku, Okayama 700-0005, Japan.

|January 19, 2026

概括

结温度控制在半孔材料中形成的堆叠无序冰 (冰 Isd) 的结构. 这一发现支持超冷水中逐层增长的机制.

科学领域:

物理化学物理化学
材料科学材料科学材料科学
纳米技术纳米技术

背景情况:

超冷水可以形成堆叠无序冰 (冰Isd),这是一个具有可变堆叠序列的晶体形式.
半孔材料限制水,影响其结行为和由此产生的冰结构.

研究的目的:

为了研究冰的核和生长机制,它是由被限制在半孔和碳中超冷水形成的.
为了确定孔径大小和结温度对冰的立方度的影响,Isd.

主要方法:

将水封闭在各种半孔和碳中.
控制中孔内的结温度.
分析X射线衍射模式以估计立方度 (立方堆叠序列的部分).

主要成果:

介质孔的大小和形状主要控制着封闭水的结温度.
冰的立方度 Isd 显示出与零度温度的普遍关系,独立于孔径几何.
观察到的立方度与结温度曲线与分子模拟结果密切匹配.

结论:

结温度是控制冰的立方度的主要因素.
根据分子模拟的建议,冰/液体界面的层次增长控制了超冷水中冰的密度.
在超冷封闭水中形成的冰在结构上可能与在低温沉积条件下形成的冰不同.

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