Premelting

Boundary between phase (1) and phase (2) without and with intermediate phase (3)

$Shadowing and blocking diffraction experiment to show the occurrence of premelting. The incident beam follows a crystal direction, so does the angle under which the detector is. The disorder of the quasi liquid premelt changes the scattering spectrum.$

Premelting (also: Surface melting) describes the fact that, even below its melting point ( $T_m$ ), quasi-liquid films can be observed on crystalline surfaces. The thickness of the film is temperature ( $T$ ) dependent. This effect is common for all crystalline materials. Premelting shows its effects in e.g. frost heave, the growth of snowflakes and, taking grain boundary interfaces into account, maybe even in the movement of glaciers. Considering a solid-vapour interface, complete and incomplete premelting can be distinguished. During a temperature rise from below to above $T_m$ , in the case of complete premelting, the solid melts homogeneously from the outside to the inside; in the case of incomplete premelting, the liquid film stays very thin during the beginning of the melting process, but droplets start to form on the interface. In either case, the solid always melts from the outside inwards, never from the inside.

单词	premelting
释义	premelting 英汉-汉英词典预熔词组 \| 习惯用语您要查找的是不是： premelt 预熔化 presetting 预调整 remolding 重塑,扰动,破碎 premelting 预溶化网络短语: Surface Premelting 表面预熔 premelting transition 预熔融转变 premelting state 预熔化状态英语例句库 Using the modified analytic embedded-atom method (MAEAM), the molecular dynamics (MD) simulation was performed to study the premelting and melting behavior of (001) plane of niobium and tungsten. 摘要采用改进分析型嵌入原子方法(MAEAM)，对铌、钨晶体的(001)面预熔和熔化过程进行分子动力学模拟。 The premelting hollow granular CC powder is an internationally advanced one used for CC at present. The paper describes the production process and the equipment selection for this powder. 预熔型空心颗粒连铸保护渣是目前国际上用于连铸的一种先进的保护渣,介绍了此保护渣的生产工艺以及设备的选择。声明：以上例句、词性分类均由互联网资源自动生成，未经过人工审核，其表达内容亦不代表本软件的观点；若发现问题，欢迎向我们指正。英语百科 Premelting $Shadowing and blocking diffraction experiment to show the occurrence of premelting. The incident beam follows a crystal direction, so does the angle under which the detector is. The disorder of the quasi liquid premelt changes the scattering spectrum.$ Premelting (also: Surface melting) describes the fact that, even below its melting point ( $T_m$ ), quasi-liquid films can be observed on crystalline surfaces. The thickness of the film is temperature ( $T$ ) dependent. This effect is common for all crystalline materials. Premelting shows its effects in e.g. frost heave, the growth of snowflakes and, taking grain boundary interfaces into account, maybe even in the movement of glaciers. Considering a solid-vapour interface, complete and incomplete premelting can be distinguished. During a temperature rise from below to above $T_m$ , in the case of complete premelting, the solid melts homogeneously from the outside to the inside; in the case of incomplete premelting, the liquid film stays very thin during the beginning of the melting process, but droplets start to form on the interface. In either case, the solid always melts from the outside inwards, never from the inside.
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premelting

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网络短语:

Premelting