First-order phase transitions, such as water boiling, are associated with "mixed-phase regimes" in which energy inputs help to complete the transformation rather than increase the system's temperature. Though some researchers posit that silicon and water undergo a first-order phase transition from a metastable low-density liquid (LDL) to a high-density liquid during melting (in these materials the liquid is denser than the solid), the time scale of the proposed transition makes the process difficult to confirm experimentally. Martin Beye et al.
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机译：一阶相变（例如水沸腾）与“混合相状态”相关联，在混合状态中，能量输入有助于完成转换而不是增加系统温度。尽管一些研究人员认为，硅和水在熔化过程中会经历从亚稳态低密度液体（LDL）到高密度液体的一阶相变（在这些材料中，液体比固体密度大），但是提议的过渡使得该过程难以通过实验进行确认。 Martin Beye等。
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