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
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spelling	my-uitm-ir.157942022-03-10T01:28:10Z Synthesis and characterization of rare earth elements cerium and dysprosium doped low density bi-2223 superconductor / Robaiah Mamat 2015 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 https://ir.uitm.edu.my/id/eprint/15794/ https://ir.uitm.edu.my/id/eprint/15794/1/TM_ROBAIAH%20MAMAT%20AS%2015_5.PDF text en public mphil masters Universiti Teknologi MARA Faculty Applied Sciences
institution	Universiti Teknologi MARA
collection	UiTM Institutional Repository
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
qualification_name	Master of Philosophy (M.Phil.)
qualification_level	Master's degree
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
granting_institution	Universiti Teknologi MARA
granting_department	Faculty Applied Sciences
publishDate	2015
url	https://ir.uitm.edu.my/id/eprint/15794/1/TM_ROBAIAH%20MAMAT%20AS%2015_5.PDF
_version_	1783733453084164096

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

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