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Sintering effect on the superconducting properties of nano-SiC added MgB2.


Tan, K. Y. and Tan, K. L. and Tan, Kar Ban and Lim, Kean Pah and Shaari, Abdul Halim and Chen, Soo Kien (2011) Sintering effect on the superconducting properties of nano-SiC added MgB2. Solid State Science and Technology, 19 (2). pp. 214-220. ISSN 0128-7389


In this work, MgB2 samples added with different weight percentages (wt%) of nano-SiC additions were synthesized by the conventional solid state method. They were sintered at 650 ºC and 850 ºC respectively, in order to study the effect of sintering temperature on their phase formation and superconducting properties. XRD spectra show relatively higher intensity of Mg2Si at lower sintering temperature while Rietveld Refinement shows severe lattice contraction at a-axis but the c-axis remains unchanged with increasing SiC additions and sintering temperatures. The transition temperature degrades with the additions level but higher sintering temperature led to more gradual decrease in Tc. At 5K, samples sintered at lower temperature shows enhanced flux pinning properties with higher Jc. However, at 20K, samples sintered at higher temperature showed improved Jc at high field (>3T) when the addition level exceeds 5 wt%.

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Additional Metadata

Item Type: Article
Divisions: Faculty of Science
Publisher: Malaysian Solid State Science and Technology Society (MASS)
Keywords: MgB2; Superconductor; Sintering temperature; Silicon carbide.
Depositing User: Nur Farahin Ramli
Date Deposited: 22 Jul 2013 01:57
Last Modified: 12 Jan 2016 04:53
URI: http://psasir.upm.edu.my/id/eprint/25122
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