| 富Ca富Cu的Bi(Pb)-Sr-Ca-Cu-O超导电性 |
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| 引用本文： | 卢亚锋,吴晓祖,李青云,周廉,辛绵荣,罗长勋.富Ca富Cu的Bi(Pb)-Sr-Ca-Cu-O超导电性[J].物理学报,1992,41(7):1157-1161. |
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| 作者姓名： | 卢亚锋 吴晓祖 李青云 周廉 辛绵荣 罗长勋 |
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| 作者单位： | (1)陕西师范大学物理系,西安710062; (2)西北有色金属研究院,宝鸡721014; (3)西北有色金属研究院,宝鸡721014;陕西师范大学物理系,西安710062 |
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| 基金项目： | 国家超导技术联合研究开发中心资助的课题 |
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| 摘 要： | 采用普通固态反应法制备了名义组分为Bi2.0-xPbxSr1.9Ca2.2Cu3.3Oy超导体,并系统研究了样品的X射线衍射谱。结果表明:富Ca富Cu加速了2223相形成,拓宽了Bi系的单相化烧结温区,并获得了品质优良的110K单相多晶样品;低温退火有助于提高样品的单相化程度。
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| 关 键 词： | 氧化物超导体 超导电性 |
| 收稿时间： | 6/3/1991 12:00:00 AM |
SUPERCONDUCTIVITY OF RICH-Ca,Cu Bi(Pb)-Sr- Ca-Cu-O SYSTEM |
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| LU YA-FENG,WU XIAO-ZU,LI QING-YUN,ZHOU LIAN,XIN MIAN-RONG and LUO CHANG-XUN.SUPERCONDUCTIVITY OF RICH-Ca,Cu Bi(Pb)-Sr- Ca-Cu-O SYSTEM[J].Acta Physica Sinica,1992,41(7):1157-1161. |
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| Authors: | LU YA-FENG WU XIAO-ZU LI QING-YUN ZHOU LIAN XIN MIAN-RONG and LUO CHANG-XUN |
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| Abstract: | The superconductors with nominal composition of Bi2.0-xPbxSr1.9Ca2.2Cu3.3Oy were prepared by solid-state reaction method, XRD patterns were systematically studied for the samples. The results indicated that rich-Ca, Cu could accelerate the formation of (2223) phase, and broaden the sintering temperature range for a single phase. High-quality polycrystalline sample of 110K single phase was obtained. Annealing at lower temperature is beneficial to increase the volume ratio of 110K phase. |
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