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首页> 外文期刊>Physica status solidi, B. Basic research >Is a particular quenched-in short-range order necessary for quasicrystal formation from glassy precursors?
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Is a particular quenched-in short-range order necessary for quasicrystal formation from glassy precursors?

机译：从玻璃状前体形成准晶体是否需要特殊的短程淬火顺序？

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In this letter we analyze the effect of quenched-in short-range order on the formation of quasicrystals during the crystallization of two different Zr-based glassy alloys formed through liquid-to-solid (i.e. melt spinning) as well as through solid-to-solid transformations (i.e. ball milling). The first alloy undergoes quasicrystalline phase formation during the first stage of the crystallization process when prepared by melt spinning, whereas the material with the same composition prepaxed by mechanical alloying shows no quasicrystal formation. In contrast, the second alloy is characterized by the formation of quasicrystals in both the melt-spun and ball-milled materials. Both alloys are characterized by a strikingly similar local atomic arrangement in the amorphous state. This suggests that the occurrence of a particular quenched-in short-range order in the glass is not a mandatory prerequisite for the formation of quasicrystals upon devitrification. (c) 2006 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
机译：在这封信中，我们分析了通过液固法（即熔融纺丝）以及固液法形成的两种不同的Zr基玻璃态合金的结晶过程中，短程淬火对准晶体形成的影响。 -固态转换（即球磨）。当通过熔融纺丝制备时，第一合金在结晶过程的第一阶段经历准晶相的形成，而通过机械合金化预浸具有相同组成的材料则没有准晶的形成。相反，第二种合金的特征是在熔纺和球磨材料中均形成准晶体。两种合金的特征都是在非晶态下具有惊人相似的局部原子排列。这表明在玻璃中发生特定的近程淬火短程不是在失透时形成准晶体的强制性前提。 （c）2006年WILEY-VCH Verlag GmbH＆Co. KGaA，魏因海姆。

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