Earticle

초록

영어

MgB2 bulk samples are synthesized through solid state reaction route using Mg precursors with different particle size by keeping the boron precursor unchanged. Scanning electron microscopy study of the fractured surface for all the samples depicts quite distinct structure depending on the Mg precursor. Big size of Mg precursor resulted in to largely elongated and deep pores while smaller one gave roughly ellipsoidal and shallow pore structure. Influence of the Mg particle size on the grain to grain connectivity reflected in the critical current density value which was greater for samples with smaller Mg precursor. All the synthesized samples undergo a superconducting transition at around 36.5 K irrespective of different Mg precursor particle size.

목차

Abstract:
 1. INTRODUCTION
 2. EXPERIMENTAL
 3. RESULT AND DISCUSSIONS
  3.1. X-ray diffraction studies
  3.2. Cross sectional FE-SEM Morphology
  3.3. Superconducting transition
  3.4 Critical current density
  3.5. Flux pinning studies
 4. CONCLUSIONS
 ACKNOWLEDGMENT
 REFERENCES

키워드

저자

• B. B. Sinha [ Korea Institute of Material Science, Changwon, Korea ]
• S. H. Jang [ Korea Institute of Material Science, Changwon, Korea ]
• K. C. Chung [ Korea Institute of Material Science, Changwon, Korea ] Corresponding author
• J. H. Kim [ Institute for Superconducting and Electronic Materials, Univ. of Wollongong, Australia ]
• S. X. Dou [ Institute for Superconducting and Electronic Materials, Univ. of Wollongong, Australia ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  한국초전도·저온논문지 (구 한국초전도저온공학회논문지) [Progress in Superconductivity and Cryogenics]

• 간기

  계간

• pISSN

  1229-3008

• eISSN

  2287-6251

• 수록기간

  1999~2026

• 등재여부

  KCI 등재,SCOPUS

• 십진분류

  KDC 427 DDC 537