Structure, Microstructure And Superconductivity Of Yba2cu3o7-I With Magnetic Nanoparticle Additives

Potential enhancement of flux pinning by rare-earth (RE) magnetic nanoparticles added into bulk of YBa2Cu3O7-8 (YBCO) was studied experimentally. In particular, a comprehensive investigation of crystal structure, microstructure and superconducting properties of YBCO added with x weight percent (x...

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Main Author: Mansor, Mohd Kamarulzaman
Format: Thesis
Language:English
English
Published: 2010
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Online Access:http://psasir.upm.edu.my/id/eprint/11989/1/FS_2010_6_A.pdf
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spelling my-upm-ir.119892013-05-27T07:50:37Z Structure, Microstructure And Superconductivity Of Yba2cu3o7-I With Magnetic Nanoparticle Additives 2010-02 Mansor, Mohd Kamarulzaman Potential enhancement of flux pinning by rare-earth (RE) magnetic nanoparticles added into bulk of YBa2Cu3O7-8 (YBCO) was studied experimentally. In particular, a comprehensive investigation of crystal structure, microstructure and superconducting properties of YBCO added with x weight percent (x = 0.0 - 0.6 wt. %) of nanosized (< 25 nm) Nd2O3, Sm2O3, Gd2O3 and Yb2O3 prepared via solid state technique was presented. X-ray diffraction (XRD) technique was used for crystal structure and phase formation identification. Detailed crystal structure analysis was carried out on each sample using the Rietveld refinement technique. The fractured cross section microstructure was observed using Scanning Electron Microscopy (SEM) and support by elemental analysis using Energy Dispersive X-ray (EDX) spectroscopy. Four point probe technique were employed to study the resistance dependence from room temperature down to 50 K. The XRD patterns revealed that only YBCO phase peaks were observed for sample with x < 0.3 and minor intensities of 211 secondary phase was observed for x > 0.4 in each series. Nanoparticles High temperature superconductivity Microstructure 2010-02 Thesis http://psasir.upm.edu.my/id/eprint/11989/ http://psasir.upm.edu.my/id/eprint/11989/1/FS_2010_6_A.pdf application/pdf en public masters Universiti Putra Malaysia Nanoparticles High temperature superconductivity Microstructure Faculty Of Science English
institution Universiti Putra Malaysia
collection PSAS Institutional Repository
language English
English
topic Nanoparticles
High temperature superconductivity
Microstructure
spellingShingle Nanoparticles
High temperature superconductivity
Microstructure
Mansor, Mohd Kamarulzaman
Structure, Microstructure And Superconductivity Of Yba2cu3o7-I With Magnetic Nanoparticle Additives
description Potential enhancement of flux pinning by rare-earth (RE) magnetic nanoparticles added into bulk of YBa2Cu3O7-8 (YBCO) was studied experimentally. In particular, a comprehensive investigation of crystal structure, microstructure and superconducting properties of YBCO added with x weight percent (x = 0.0 - 0.6 wt. %) of nanosized (< 25 nm) Nd2O3, Sm2O3, Gd2O3 and Yb2O3 prepared via solid state technique was presented. X-ray diffraction (XRD) technique was used for crystal structure and phase formation identification. Detailed crystal structure analysis was carried out on each sample using the Rietveld refinement technique. The fractured cross section microstructure was observed using Scanning Electron Microscopy (SEM) and support by elemental analysis using Energy Dispersive X-ray (EDX) spectroscopy. Four point probe technique were employed to study the resistance dependence from room temperature down to 50 K. The XRD patterns revealed that only YBCO phase peaks were observed for sample with x < 0.3 and minor intensities of 211 secondary phase was observed for x > 0.4 in each series.
format Thesis
qualification_level Master's degree
author Mansor, Mohd Kamarulzaman
author_facet Mansor, Mohd Kamarulzaman
author_sort Mansor, Mohd Kamarulzaman
title Structure, Microstructure And Superconductivity Of Yba2cu3o7-I With Magnetic Nanoparticle Additives
title_short Structure, Microstructure And Superconductivity Of Yba2cu3o7-I With Magnetic Nanoparticle Additives
title_full Structure, Microstructure And Superconductivity Of Yba2cu3o7-I With Magnetic Nanoparticle Additives
title_fullStr Structure, Microstructure And Superconductivity Of Yba2cu3o7-I With Magnetic Nanoparticle Additives
title_full_unstemmed Structure, Microstructure And Superconductivity Of Yba2cu3o7-I With Magnetic Nanoparticle Additives
title_sort structure, microstructure and superconductivity of yba2cu3o7-i with magnetic nanoparticle additives
granting_institution Universiti Putra Malaysia
granting_department Faculty Of Science
publishDate 2010
url http://psasir.upm.edu.my/id/eprint/11989/1/FS_2010_6_A.pdf
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