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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 >Phases formed during crystallization of Zr55Al10Ni5Cu30 metallic glass containing oxygen
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Phases formed during crystallization of Zr55Al10Ni5Cu30 metallic glass containing oxygen

机译：含氧的Zr55Al10Ni5Cu30金属玻璃结晶过程中形成的相

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In the present work the Zr55Al10Ni5Cu30 alloy has been processed by melt spinning and die-casting into a chilled copper mold. The ribbon was fully amorphous (X-ray diffraction and transmission electron microscopy) and cast samples partially crystalline. The amorphous ribbon was crystallized and analyzed by differential scanning calorimetry, X-ray diffractometry and transmission electron microscopy. The smaller supercooled liquid range of the glassy ribbons (60 K) and partial crystallization of a larger cast sample during quenching indicate the presence of oxygen in both samples (similar to0.8 at.%). Although the crystallization process of the glassy ribbon, a glass transition followed by a single crystallization peak, showed the same crystallization process as reported by the literature, the heat release and the phases formed differed. The main phases formed were Zr2Cu, a complex 'big-cube' fcc Zr4Cu2O-type phase and a tetragonal phase, not reported before to our knowledge, containing a lattice parameter of 2.8 nm. (C) 2002 Elsevier Science B.V. All rights reserved. [References: 19]
机译：在当前的工作中，Zr55Al10Ni5Cu30合金已经通过熔融纺丝和压铸到冷铜模具中进行了加工。该带是完全无定形的（X射线衍射和透射电子显微镜），铸造样品部分结晶。将该非晶带状物结晶并通过差示扫描量热法，X射线衍射法和透射电子显微镜进行分析。玻璃带（60 K）的较小的过冷液体范围和淬火过程中较大的铸件样品的部分结晶表明这两个样品中都存在氧气（约0.8 at。％）。尽管玻璃带的结晶过程，玻璃化转变以及随后的单个结晶峰显示出与文献报道的相同的结晶过程，但热释放和形成的相不同。形成的主要相是Zr2Cu，一个复杂的“大立方体” fcc Zr4Cu2O型相和一个四方相，据我们所知，该相以前没有报道，其晶格参数为2.8 nm。 （C）2002 Elsevier Science B.V.保留所有权利。 [参考：19]

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