| Pd40.5Ni40.5P19合金的无容器凝固及其大块金属玻璃的形成 |
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| 引用本文： | 王文魁,秦志成,许应凡,孙帼显,徐小平,白海洋,金作文,刘培铭,陈佳圭.Pd40.5Ni40.5P19合金的无容器凝固及其大块金属玻璃的形成[J].物理学报,1989,38(6):995-997. |
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| 作者姓名： | 王文魁 秦志成 许应凡 孙帼显 徐小平 白海洋 金作文 刘培铭 陈佳圭 |
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| 作者单位： | 中国科学院物理研究所 |
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| 摘 要： | 熔态Pd40.5Ni40.5P19,合金在1.2落管中被分散成液滴,并在自由下落过程中凝固.由于实验是在纯净的氦气氛下的无容器环境中进行,因而消除了由于表面氧化层的存在以及由于液态合金与容器壁的接触所造成的非均匀成核,得到了迄今尺寸最大的直径2mm的规则金属玻璃球体.
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| 关 键 词： | 贵金属合金 金属玻璃 |
| 收稿时间： | 1988-08-30 |
FORMATION OF BULK METALLIC GLASS Pd40.5Ni40.5P19 BY SOLIDIFICATION WITHOUT CONTAINER IN A DROPPING TUBE |
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| WANG WEN-KUI,QIN ZHI-CHENG,XU YING-FAN,SUN GUO-XIAN,XU XIAO-PING,BAI HAI-YANG,JIN ZUO-WEN,LIU PEI-MING and CHEN JIA-GUI.FORMATION OF BULK METALLIC GLASS Pd40.5Ni40.5P19 BY SOLIDIFICATION WITHOUT CONTAINER IN A DROPPING TUBE[J].Acta Physica Sinica,1989,38(6):995-997. |
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| Authors: | WANG WEN-KUI QIN ZHI-CHENG XU YING-FAN SUN GUO-XIAN XU XIAO-PING BAI HAI-YANG JIN ZUO-WEN LIU PEI-MING and CHEN JIA-GUI |
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| Abstract: | The dispersed molten droplets of Pd40.5Ni40.5P19 alloy solidified during fall down in a 1.2 m drop-tube which is filled with purified helium at 0.8 atmosphere. Owing to solidificat ion without container occurring at high undercooling, the heterogeneous nucleation was inhibited and the metallic glass sphere of 2 mm in diameter was obtained, which is the largest one prepared by dropping tube up to now. |
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