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Effect of Inclusions on Magnetostriction in Superconducting Cylinder with Exponential Distribution of Critical-Current Density

  • Yufeng Zhao
  • Zhiguo Liu
  • Kun Xiong
Original Paper

Abstract

The magnetoelastic behaviour subjected to the electromagnetic body force induced by flux pinning is studied with Kim model for zero-field cooling (ZFC) magnetization process, in which the non-uniform parameter η is considered for inclusion-superconducting matrix system. For superconducting composites, the effect of inhomogeneous distribution of critical current density on effective magnetostriction is also obtained based on the plane strain approach. The results show that the exponential distribution of critical-current density will lead to a larger trapped field and magnetostriction inside the inhomogeneous sample, which also means that it is worthwhile to investigate the magnetoelastic problem of bulk superconductors with inhomogeneous distribution of critical-current density.

Keywords

Magnetostriction Exponential distribution of critical-current density Nonsuperconducting inclusion Kim model 

Notes

Funding Information

This research was supported by the fund of Natural Science Foundation of China (No. 11662009) and Natural Science Foundation of Gansu Province (No. 17JR5RA129).

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  1. 1.State Key Laboratory of Advanced Processing and Recycling of Nonferrous MetalsLanzhou University of TechnologyLanzhouChina
  2. 2.School of ScienceLanzhou University of TechnologyLanzhouChina

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