Correlation of thermoelectric and microstructural properties of p-type CeFe[sub 4]Sb[sub 12] melt-spun ribbons using a rapid screening method

  • Yan Y
  • Wong-Ng W
  • Kaduk J
 et al. 
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We have demonstrated the effect of gradients in phase composition and microstructure of p-type CeFe 4 Sb 12 melt-spun ribbons on Seebeck coefficient by using a thermoelectric (TE) screening tool in conjunction with x-ray diffraction. The spatial Seebeck coefficient variation was found to correlate with the changes in the phase composition and microstructure. The observed gradient was the result of a postannealing effect caused by the thermal lag between the contact surface with the roller and the free surface. Our results illustrate the application of our screening tool to the three-dimensional variation in Seebeck coefficient in a model TE material.

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  • Y. G. Yan

  • W. Wong-Ng

  • J. A. Kaduk

  • G. J. Tan

  • W. J. Xie

  • X. F. Tang

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