| INFLUENCE OF RARE-EARTH ELEMENTS ON THERMAL STABILITY OF PdSi_(16.5)GLASS |
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| 作者姓名： | NING Yuantao LI Yongnian Kunming Institute of Precious Metals China Ning Yuantao Professor Institute of Precious Metals Kunming Yunnan China |
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| 作者单位： | NING Yuantao LI Yongnian Kunming Institute of Precious Metals，China Ning Yuantao，Professor，Institute of Precious Metals，Kunming，Yunnan，China |
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| 摘 要： | The influence of rare-earth elements,La,Ce,Pr,Nd,Sm,Eu,Gd,Dy,Ho,Er and Yb onthe thermal stability of PdSi_(16.5) glass was studied systematically by means of DSC.Allrare-earth elements,especially heavy ones,increase obviously the thermal stabilityparameters,including T_θ(T_g ,T_x ,T_g),T_(rg) and ΔE etc.The crystallization temperaturesT_(p1) and T_(p2) increase linearly with the lanthanide constriction increasing,but Eu shows ananomalous influence:Pd-Si-Eu metallic glass possesses the highest thermal stability and thelowest concentration limit of glass forming among Pd-Si-R glasses.
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| 收稿时间： | 1990-07-11 |
| 修稿时间： | 1990-07-11 |
INFLUENCE OF RARE-EARTH ELEMENTS ON THERMAL STABILITY OF PdSi_(16.5)GLASS |
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| NING Yuantao LI Yongnian Kunming Institute of Precious Metals,China Ning Yuantao,Professor,Institute of Precious Metals,Kunming,Yunnan,China.INFLUENCE OF RARE-EARTH ELEMENTS ON THERMAL STABILITY OF PdSi_(16.5)GLASS[J].Acta Metallurgica Sinica(English Letters),1990,3(7):43-48. |
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| Authors: | NING Yuantao LI Yongnian Kunming Institute of Precious Metals China Ning Yuantao Professor |
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| Affiliation: | NING Yuantao LI Yongnian Kunming Institute of Precious Metals,China Ning Yuantao,Professor,Institute of Precious Metals,Kunming,Yunnan,China |
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| Abstract: | The influence of rare-earth elements,La,Ce,Pr,Nd,Sm,Eu,Gd,Dy,Ho,Er and Yb on the thermal stability of PdSi_(16.5) glass was studied systematically by means of DSC.All rare-earth elements,especially heavy ones,increase obviously the thermal stability parameters,including T_θ(T_g ,T_x ,T_g),T_(rg) and ΔE etc.The crystallization temperatures T_(p1) and T_(p2) increase linearly with the lanthanide constriction increasing,but Eu shows an anomalous influence:Pd-Si-Eu metallic glass possesses the highest thermal stability and the lowest concentration limit of glass forming among Pd-Si-R glasses. |
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| Keywords: | thermal stability amorphous alloy Pd-Si alloy rare-earth element |
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