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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 >Formation of bulk Pt-Pd-Ni-P glassy alloys
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Formation of bulk Pt-Pd-Ni-P glassy alloys

机译：块状Pt-Pd-Ni-P玻璃态合金的形成

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The thermal behavior of (Pt0.4Pd0.3 N-0.3)(100-x)P-x (x = 16-25 at.%) glassy alloys has been investigated. It is found that the crystallization behavior of the (Pt0.4Pd0.3Ni0.3)(100-x)P-x glassy alloys changes from a single-stage exothermic reaction to a two-stage exothermic reaction depending on phosphorous content. When the phosphorous content is 23 at.%, the glassy alloy exhibits the largest supercooled liquid region (Delta T-x) and a sharp single exothermic peak. Fixing the phosphorous content at 23 at.%, the Pt77-x-yPdxNiyP23 (x = 7.7-61.6 at.%, y = 7.7-61.6 at.%) glassy alloys have a wide composition range in which the glassy alloys exhibit a large supercooled liquid region (Delta T-x beyond 60 K). In this range, the Pt30.8Pd23.1Ni23.1P23 glass has the largest Delta T-x (77 K) and a high reduced glass transition temperature (T-rg) of 0.60. This alloy can be cast into fully glassy rods with a diameter of 3 mm. Under uni-axial compression, bulk Pt30.8Pd23.1Ni23.1P23 glassy alloy has an elastic strain of similar to 2%, an ultimate strain (to fracture) of similar to 6.4%, a Young's modulus of similar to 106 GPa and a failure strength of similar to 1390 MPa. (c) 2006 Elsevier B.V. All rights reserved.
机译：研究了（Pt0.4Pd0.3 N-0.3）（100-x）P-x（x = 16-25 at。％）玻璃态合金的热行为。发现（Pt0.4Pd0.3Ni0.3）（100-x）P-x玻璃态合金的结晶行为根据磷含量从单阶段放热反应改变为两阶段放热反应。当磷含量为23原子％时，玻璃态合金表现出最大的过冷液体区域（ΔT-x）和一个尖锐的单个放热峰。 Pt77-x-yPdxNiyP23（x = 7.7-61.6 at。％，y = 7.7-61.6 at。％）将磷含量固定在23 at。％时，其组成范围很广，其中玻璃合金表现出较大的含量过冷液体区域（超过60 K的Delta Tx）。在此范围内，Pt30.8Pd23.1Ni23.1P23玻璃具有最大的Delta T-x（77 K）和高的玻璃化转变温度（T-rg）0.60。这种合金可以铸成直径为3毫米的完全玻璃状的棒。在单轴压缩下，块状Pt30.8Pd23.1Ni23.1P23玻璃态合金的弹性应变近似为2％，极限应变（断裂）近似为6.4％，杨氏模量近似为106 GPa，并且破坏强度类似于1390 MPa。 （c）2006 Elsevier B.V.保留所有权利。

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