Search Advanced
2008 Volume 17 Issue 4
Article Contents
Previous Article Next Article

Xia Qing-Lin, Yi Jian-Hong, Peng Yuan-Dong, Luo Shu-Dong, Wang Hong-Zhong, Li Li-Ya. 2008: Synthesis of superconductor MgCNi3 with carbon nanotubes, Chinese Physics B, 17(4): 1421-1424.
Citation: Xia Qing-Lin, Yi Jian-Hong, Peng Yuan-Dong, Luo Shu-Dong, Wang Hong-Zhong, Li Li-Ya. 2008: Synthesis of superconductor MgCNi3 with carbon nanotubes, Chinese Physics B, 17(4): 1421-1424.
shu

Synthesis of superconductor MgCNi3 with carbon nanotubes

  • School of Physical Science and Technology and State Key Laboratory for Powder Metallurgy, Central South University, Changsha 410083, China

  • Available Online: 30/04/2008
  • Fund Project: the National Natural Science Foundation of China (Grant 60571043)
  • MgCNia, an intermetallic compound superconductor with a cubic perovskite crystal structure, has been synthesized using fine Mg and Ni powders and carbon nanotubes (CNTs) as starting materials by the conventional powder metallurgy method. The composition, microstructure and superconductivity are characterized using x-ray diffraction (XRD), energy dispersive x-ray (EDX) analysis, scanning electron microscopy (SEM), and superconducting quantum interference device (SQUID) magnetometer. The results indicate that the phases of the synthesized samples are MgCNi3 (major phase) and traces of C and MgO. The MgCNi3 particle sizes range from several hundreds of nanometres to several micrometres.The onset superconducting transition temperature Tc of the MgCNi3 sample is about 7.2 K. The critical current density Jc is about 3.44 × 104 A/cm2 calculated according to the Bean model from the magnetization hysteresis loop of the slab MgCNi3 sample at 5 K and zero applied field.
  • 加载中
  • 加载中
通讯作者: 陈斌, bchen63@163.com
  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

  1. 本站搜索
  2. 百度学术搜索
  3. 万方数据库搜索
  4. CNKI搜索
Export Citation
PDF
XML

Article Metrics

Article views(160) PDF downloads(0) Cited by(0)

Access History

Synthesis of superconductor MgCNi3 with carbon nanotubes

  • Available Online: 30/04/2008

Abstract: MgCNia, an intermetallic compound superconductor with a cubic perovskite crystal structure, has been synthesized using fine Mg and Ni powders and carbon nanotubes (CNTs) as starting materials by the conventional powder metallurgy method. The composition, microstructure and superconductivity are characterized using x-ray diffraction (XRD), energy dispersive x-ray (EDX) analysis, scanning electron microscopy (SEM), and superconducting quantum interference device (SQUID) magnetometer. The results indicate that the phases of the synthesized samples are MgCNi3 (major phase) and traces of C and MgO. The MgCNi3 particle sizes range from several hundreds of nanometres to several micrometres.The onset superconducting transition temperature Tc of the MgCNi3 sample is about 7.2 K. The critical current density Jc is about 3.44 × 104 A/cm2 calculated according to the Bean model from the magnetization hysteresis loop of the slab MgCNi3 sample at 5 K and zero applied field.

    HTML

Reference (0)

Catalog

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return