Glasses made from pure metals

JAN SCHROERS

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Glasses made from pure metals

机译：纯金属玻璃

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On page 177 of this issue, Mao and colleagues report a method that allows them to achieve a long-standing goal for materials scientists-the formation of glasses from pure metals. This will enable much-needed studies of glass formation in simple systems, and allows computational modelling of the processes involved. For thermodynamic reasons, most liquids become crystalline when they are cooled below their 'liquidus' temperature, above which substances are completely liquid. Crystallizations occur at different timescales and can be suppressed by fast cooling of a liquid, causing it to vitrify into a glass. Vitrification occurs for various materials at widely different critical cooling rates (R_c)-the minimum rate of cooling required to form a glass.

机译：在本期杂志的第177页上，毛泽东及其同事报告了一种方法，可使他们实现材料科学家的长期目标-由纯金属形成玻璃。这将使在简单系统中急需的玻璃形成研究成为可能，并允许对涉及的过程进行计算建模。由于热力学原因，大多数液体在冷却至低于其“液相线”温度时会结晶，在此温度以上物质完全为液体。结晶发生在不同的时间尺度上，可以通过液体的快速冷却来抑制，从而使其玻璃化成玻璃。各种材料的玻璃化会在非常不同的临界冷却速率（R_c）（形成玻璃所需的最小冷却速率）下发生。

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来源
《Nature》 |2014年第7513期|142-143|共2页
作者
JAN SCHROERS;
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作者单位

Department of Mechanical Engineering and Materials Science, Yale University, New Haven, Connecticut 06511, USA;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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正文语种 eng
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Glasses made from pure metals

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