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首页> 外文期刊>Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites >Degree of local structural ordering and its correlation with the glass forming ability of alloys
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Degree of local structural ordering and its correlation with the glass forming ability of alloys

机译：局部结构有序度及其与合金玻璃形成能力的关系

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The degree of local structural order in amorphous solids and liquids has been investigated in CuHf alloys for the first time. X-ray diffraction experiments and thermal analysis show that the local structural order is strongly composition-dependent. For the CuHf alloys, it has been found that a close relationship exists between the degree of local ordering and the glass forming ability. Comparisons between the present alloys and those studied previously show that local structural order in glass formation is determined by the dominant vitrification conditions (diffusion-controlled or nucleation-controlled). The local ordering structures act as random fields against crystallization when the primary crystallization mechanism for the undercooled melts is the formation of intermetallic crystals. (c) 2006 Elsevier B.V. All rights reserved.
机译：首次在CuHf合金中研究了非晶态固体和液体中的局部结构有序度。 X射线衍射实验和热分析表明，局部结构顺序与组成密切相关。对于CuHf合金，已经发现在局部有序度和玻璃形成能力之间存在紧密的关系。本合金与先前研究的合金之间的比较表明，玻璃形成中的局部结构有序是由主要的玻璃化条件（扩散控制或成核控制）决定的。当过冷熔体的主要结晶机理是金属间晶体的形成时，局部有序结构对结晶产生随机作用。 （c）2006 Elsevier B.V.保留所有权利。

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