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Synthesis and characterization of rare earth elements cerium and dysprosium doped low density bi-2223 superconductor / Robaiah Mamat

So far, there are limited reports on the investigation on the influence of the rare earth doped low density Bi| 6Pbo 4Sr2Ca2Cu3 0 y system where cerium and dysprosium doping samples possessed a weak connection in the bulk samples. Hence, this study is conducted to investigate the influences of rare...

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Main Author: Mamat, Robaiah
Format: Thesis
Language:English
Published: 2015
Subjects:
TD Environmental technology. Sanitary engineering
Online Access:https://ir.uitm.edu.my/id/eprint/15794/1/TM_ROBAIAH%20MAMAT%20AS%2015_5.PDF
https://ir.uitm.edu.my/id/eprint/15794/
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spelling my.uitm.ir.157942022-03-10T01:28:10Z https://ir.uitm.edu.my/id/eprint/15794/ Synthesis and characterization of rare earth elements cerium and dysprosium doped low density bi-2223 superconductor / Robaiah Mamat Mamat, Robaiah TD Environmental technology. Sanitary engineering So far, there are limited reports on the investigation on the influence of the rare earth doped low density Bi| 6Pbo 4Sr2Ca2Cu3 0 y system where cerium and dysprosium doping samples possessed a weak connection in the bulk samples. Hence, this study is conducted to investigate the influences of rare earth elements (Ce, Dy) doping on the structural and superconducting properties in low density Bij 6Pbo 4Sr2Ca2Cu3 0 y superconductor. In this research, the influences of cerium and dysprosium doped low density Bi| 6Pbo 4Sr2Ca2Cu3 0 y superconductor were studied based on the best level of low density and sintering time, furthermore, the technique of mixing the superconducting samples with sucrose was used to prepare the low density rare earth elements (Ce, Dy) doped Bi| 6Pbo 4Sr2Ca2Cu3 0 y superconductor. The optimum level of sucrose was found at 0.050 g mixed with 1.950 g of Bi(Pb)SrCaCuO powder while the critical current density, Jc of high density (standard sample) and optimum lowdensity was measured to be 3.746 A/cm 2 and 5.405 A/cm 2 , respectively at 77 K under zero magnetic field. Furthermore, the optimal sintering time of the samples Bii 6Pbo 4Sr2Ca2Cu3 0 v system was found at 850°C for 72 hours. The best Jc achieved in high density and optimal low density samples were 7.547 A/cm 2 and 8.333 A/cm 2 respectively at 77 K under zero magnetic fields. However, it was found that both doped Ce and Dy at Ca site indicated deteriorations on the superconducting properties when compared with the undoped samples. The doping samples exhibited the increased values of 7c and Jc towards the optimum concentration and decreased after the further increase of Ce and Dy dopants. 2015 Thesis NonPeerReviewed text en https://ir.uitm.edu.my/id/eprint/15794/1/TM_ROBAIAH%20MAMAT%20AS%2015_5.PDF ID15794 Mamat, Robaiah (2015) Synthesis and characterization of rare earth elements cerium and dysprosium doped low density bi-2223 superconductor / Robaiah Mamat. Masters thesis, thesis, Universiti Teknologi MARA.
institution Universiti Teknologi Mara
building Tun Abdul Razak Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Mara
content_source UiTM Institutional Repository
url_provider http://ir.uitm.edu.my/
language English
topic TD Environmental technology. Sanitary engineering
spellingShingle TD Environmental technology. Sanitary engineering
Mamat, Robaiah
Synthesis and characterization of rare earth elements cerium and dysprosium doped low density bi-2223 superconductor / Robaiah Mamat
description So far, there are limited reports on the investigation on the influence of the rare earth doped low density Bi| 6Pbo 4Sr2Ca2Cu3 0 y system where cerium and dysprosium doping samples possessed a weak connection in the bulk samples. Hence, this study is conducted to investigate the influences of rare earth elements (Ce, Dy) doping on the structural and superconducting properties in low density Bij 6Pbo 4Sr2Ca2Cu3 0 y superconductor. In this research, the influences of cerium and dysprosium doped low density Bi| 6Pbo 4Sr2Ca2Cu3 0 y superconductor were studied based on the best level of low density and sintering time, furthermore, the technique of mixing the superconducting samples with sucrose was used to prepare the low density rare earth elements (Ce, Dy) doped Bi| 6Pbo 4Sr2Ca2Cu3 0 y superconductor. The optimum level of sucrose was found at 0.050 g mixed with 1.950 g of Bi(Pb)SrCaCuO powder while the critical current density, Jc of high density (standard sample) and optimum lowdensity was measured to be 3.746 A/cm 2 and 5.405 A/cm 2 , respectively at 77 K under zero magnetic field. Furthermore, the optimal sintering time of the samples Bii 6Pbo 4Sr2Ca2Cu3 0 v system was found at 850°C for 72 hours. The best Jc achieved in high density and optimal low density samples were 7.547 A/cm 2 and 8.333 A/cm 2 respectively at 77 K under zero magnetic fields. However, it was found that both doped Ce and Dy at Ca site indicated deteriorations on the superconducting properties when compared with the undoped samples. The doping samples exhibited the increased values of 7c and Jc towards the optimum concentration and decreased after the further increase of Ce and Dy dopants.
format Thesis
author Mamat, Robaiah
author_facet Mamat, Robaiah
author_sort Mamat, Robaiah
title Synthesis and characterization of rare earth elements cerium and dysprosium doped low density bi-2223 superconductor / Robaiah Mamat
title_short Synthesis and characterization of rare earth elements cerium and dysprosium doped low density bi-2223 superconductor / Robaiah Mamat
title_full Synthesis and characterization of rare earth elements cerium and dysprosium doped low density bi-2223 superconductor / Robaiah Mamat
title_fullStr Synthesis and characterization of rare earth elements cerium and dysprosium doped low density bi-2223 superconductor / Robaiah Mamat
title_full_unstemmed Synthesis and characterization of rare earth elements cerium and dysprosium doped low density bi-2223 superconductor / Robaiah Mamat
title_sort synthesis and characterization of rare earth elements cerium and dysprosium doped low density bi-2223 superconductor / robaiah mamat
publishDate 2015
url https://ir.uitm.edu.my/id/eprint/15794/1/TM_ROBAIAH%20MAMAT%20AS%2015_5.PDF
https://ir.uitm.edu.my/id/eprint/15794/
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score 13.211869

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