| 基于碳化硼复相MgB2超导体制备及特性 |
| |
| 引用本文： | 曹坚,吕振兴,单雪娇,朱红妹,张义邴.基于碳化硼复相MgB2超导体制备及特性[J].低温物理学报,2011(1):46-50. |
| |
| 作者姓名： | 曹坚 吕振兴 单雪娇 朱红妹 张义邴 |
| |
| 作者单位： | 上海大学理学院物理系; |
| |
| 摘 要： | 以廉价的B4C粉和Mg粉为原料,用真空固相反应法成功制备了复相MgB2-B4C超导材料,通过X-射线和扫描电子显微镜分析了样品的成相和织构,除MgB2、B4C和MgB2C2外样品中未明显检测到其它杂相,其中MgB2相含量高达87.7%.电阻-温度特性测量表明,所制备的样品零电阻温度Tc(0)=31.5 K,转变宽度(T...
|
| 关 键 词： | B4C MgB2 超导体 固相反应 |
FABRICATION AND CHARACTERISTICS OF B4C-based MgB_2 COMPOSITE SUPERCONDUCTOR |
| |
| CAO Jian LV Zhen-xing SHAN Xue-jiaoZHU Hong-mei ZHANG Yi-bing.FABRICATION AND CHARACTERISTICS OF B4C-based MgB_2 COMPOSITE SUPERCONDUCTOR[J].Chinese Journal of Low Temperature Physics,2011(1):46-50. |
| |
| Authors: | CAO Jian LV Zhen-xing SHAN Xue-jiaoZHU Hong-mei ZHANG Yi-bing |
| |
| Institution: | CAO Jian LV Zhen-xing SHAN Xue-jiaoZHU Hong-mei ZHANG Yi-bing Department of Physics,College of Science,Shanghai University,Shanghai 200444 |
| |
| Abstract: | Taking low-cost B4C powder and Mg powder as the raw materials,we prepared superconducting MgB2-B4C composite by performing solid phase reactions in a vacuum furnace.X-ray and scanning electron microscopy (SEM) measurements revealed the phase constitution and microscopic texture of the samples.The results showed that the MgB2 phase content was up to 87.7% and no additional phases,except MgB2,B4C and MgB2C2,were detected.The zero resistance temperature (Tc(0)) and the transition width ((Tc) of our samples wer... |
| |
| Keywords: | B4C MgB2 Superconductor Solid phase reaction |
| 本文献已被 CNKI 等数据库收录！ |
|
