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arXiv 1707.04786cond-mat.mtrl-scicond-mat.soft
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玻璃化温度压力演化的新挑战

New challenges for the pressure evolution of the glass temperature

Sylwester J. Rzoska

摘要:

的玻璃化温度(Tg)的压力演化的描绘方式超出了占主导地位的Simon-Glatzel样图案进行了讨论。这包括由dtg/dP>0和dTg/dP<0描述的系统中Tg(P)依赖性的可能的共同描述。后者与Tg(P)曲线的最大值隐藏在负压区域有关。还注意到沿着玻璃化曲线的体积和密度变化的问题。最后,提出了与从低密度(各向同性拉伸)到高密度(各向同性压缩)系统的交叉相关的玻璃化的普遍模式。假设,它可以服从任何玻璃形成者,从分子液体到胶体。

英文摘要:

The ways of portrayal of the pressure evolution of the glass temperature (Tg) beyond the dominated Simon-Glatzel-like pattern are discussed. This includes the possible common description of Tg(P) dependences in systems described by dtg/dP>0 and dTg/dP<0. The latter is associated with the maximum of Tg(P) curve hidden in the negative pressures domain. The issue of volume and density changes along the vitrification curve is also noted. Finally, the universal pattern of vitrification associated with the crossover from the low density (isotropic stretching) to the high density (isotropic compression) systems is proposed. Hypothetically, it may obey any glass former, from molecular liquids to colloids.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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