学术
掺Pb对Bi系超导体性能影响的研究
梁茹[1] 陈学信[2] 林尚安[2]
[1]广东省生产力促进中心,广东广州510070 [2]中山大学化学化工学院,广东广州510275
摘 要:
在使用聚合物-金属复合物（PMC）新型合成工艺制各出性能优良的BiSrCaCuO超导体的基础上，利用PMC法易于掺杂的特点，合成了Bi2-x（Pb）xSr2Ca2Cu2Oy超导体，实验结果表明，掺Pb后，合成时间进一步缩短，高瓦相的形成速率是不掺Pb的4-6倍，所得超导体为单相，掺Pb不影响体系的微观均匀性。[著者文摘]
文章出处:
《广州化学》-2005年30卷4期 -4-8页
栏目信息:
分 类 号:
文献标识码:
A
文章编号:
1009-220X（2005）04-0004-05
Synthesis of Bisrcacuo Superconducting Compounds by Polymer-Metal Complex
LIANG Ru, CHEN Xue-xin, LIN Shang-an （ 1. Guangdong Productivity Center, Guangzhou 51007, China; 2. School of Chemistry ＆ Chemical Engineering, Sun Yat-sen University, Guangzhou 510275, China）
Abstract:
The superconducting compounds of BiSrCaCuO system have been produced by polymer-metal complex （PMC）. The product exhibits Tce 114.7 K and Tco 84.0 K. X-Ray diffraction shows they exist high-Tc and low-Tc phases. The variation of high-Tc phase fraction depends on the metal-ion composition, calcinations temperature and time of the pellet. Effects of preparation condition and microstructure on the superconducting properties have been investigated. Based on the experimental results a conclusion can be drawn that the polymer in PMC approach plays a paramount role in fabrication and testified that the sample was highly homogeneous.[著者文摘]
Key words:
superconducting compounds, BiSrCaCuO, polymer-metal complex
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