Effects of nanometer yAl203 addition on superconducting properties of Bi16Pbo.4Sr2Ca2Cii30x (Bi-2223) superconductor / Masnita Mat Jusoh

Copper oxide based superconductor Bismuth (Bi, Pb)SrCaCuO or well known as (BSCCO-2223) with nano-yA^C^ addition have been prepared via co-precipitation (COP) method. The precursor powder was prepared using COP method while addition of nanoparticles yA^Os was done through solid state reaction method...

Full description

Saved in:

Bibliographic Details
Main Author:	Mat Jusoh, Masnita
Format:	Thesis
Language:	English
Published:	2011
Subjects:	Superconducting materials Superconductors
Online Access:	https://ir.uitm.edu.my/id/eprint/65193/1/65193.pdf
Tags:	Add Tag No Tags, Be the first to tag this record!

id	my-uitm-ir.65193
record_format	uketd_dc
spelling	my-uitm-ir.651932023-01-11T03:47:54Z Effects of nanometer yAl203 addition on superconducting properties of Bi16Pbo.4Sr2Ca2Cii30x (Bi-2223) superconductor / Masnita Mat Jusoh 2011 Mat Jusoh, Masnita Superconducting materials. Superconductors Copper oxide based superconductor Bismuth (Bi, Pb)SrCaCuO or well known as (BSCCO-2223) with nano-yA^C^ addition have been prepared via co-precipitation (COP) method. The precursor powder was prepared using COP method while addition of nanoparticles yA^Os was done through solid state reaction method. Four point probe, X-ray diffraction (XRD), energy dispersive analysis (EDAX) and scanning electron micrograph (SEM) have been used to characterize the materials. By COP method, the precursor was fabricated into bulk samples and the addition of nano-yA^Os is between 0.0 wt% -1.0 wt % from molecular weight of sample. All prepared samples have been sintered in various sintering duration of 12, 24, 36, 48 and 56 hours at 850°C, respectively. The focus of investigation is on critical transition temperature (Tc), critical current density (Jc), Bi-2223 phase percentage and microstructure development. All four characteristics have been studied for each experimental sample. Sample with addition 0.7 wt% of nano-yAl203 and sintered at 48 hours shows maximum Jc value of 9.78 A/cm2 with Tc of 101 K. Jc value depends on sintering duration. Sample sintered for 12 hours at 850°C did not show superconductivity properties very well. The Jc obtained is 3.7 A/cm2 and the Tc is lower than 90 K. The COP method has shown to produce high percentage of Bi-2223 superconducting phase. A small addition of nano-yAl203 is found to improve the Bi-2223 phase where intergrains connectivity is enhanced and weak links are reduced, resulted in enhanced Jc value. Larger grains size is observed with increasing sintering time as manifested in samples sintered at 56 hours. In COP prepared samples, the nanoparticles act as pinning flux centre under certain condition. 2011 Thesis https://ir.uitm.edu.my/id/eprint/65193/ https://ir.uitm.edu.my/id/eprint/65193/1/65193.pdf text en public masters Universiti Teknologi MARA (UiTM) Faculty of Applied Sciences Syed Yahya, Syed Yusainee
institution	Universiti Teknologi MARA
collection	UiTM Institutional Repository
language	English
advisor	Syed Yahya, Syed Yusainee
topic	Superconducting materials Superconductors
spellingShingle	Superconducting materials Superconductors Mat Jusoh, Masnita Effects of nanometer yAl203 addition on superconducting properties of Bi16Pbo.4Sr2Ca2Cii30x (Bi-2223) superconductor / Masnita Mat Jusoh
description	Copper oxide based superconductor Bismuth (Bi, Pb)SrCaCuO or well known as (BSCCO-2223) with nano-yA^C^ addition have been prepared via co-precipitation (COP) method. The precursor powder was prepared using COP method while addition of nanoparticles yA^Os was done through solid state reaction method. Four point probe, X-ray diffraction (XRD), energy dispersive analysis (EDAX) and scanning electron micrograph (SEM) have been used to characterize the materials. By COP method, the precursor was fabricated into bulk samples and the addition of nano-yA^Os is between 0.0 wt% -1.0 wt % from molecular weight of sample. All prepared samples have been sintered in various sintering duration of 12, 24, 36, 48 and 56 hours at 850°C, respectively. The focus of investigation is on critical transition temperature (Tc), critical current density (Jc), Bi-2223 phase percentage and microstructure development. All four characteristics have been studied for each experimental sample. Sample with addition 0.7 wt% of nano-yAl203 and sintered at 48 hours shows maximum Jc value of 9.78 A/cm2 with Tc of 101 K. Jc value depends on sintering duration. Sample sintered for 12 hours at 850°C did not show superconductivity properties very well. The Jc obtained is 3.7 A/cm2 and the Tc is lower than 90 K. The COP method has shown to produce high percentage of Bi-2223 superconducting phase. A small addition of nano-yAl203 is found to improve the Bi-2223 phase where intergrains connectivity is enhanced and weak links are reduced, resulted in enhanced Jc value. Larger grains size is observed with increasing sintering time as manifested in samples sintered at 56 hours. In COP prepared samples, the nanoparticles act as pinning flux centre under certain condition.
format	Thesis
qualification_level	Master's degree
author	Mat Jusoh, Masnita
author_facet	Mat Jusoh, Masnita
author_sort	Mat Jusoh, Masnita
title	Effects of nanometer yAl203 addition on superconducting properties of Bi16Pbo.4Sr2Ca2Cii30x (Bi-2223) superconductor / Masnita Mat Jusoh
title_short	Effects of nanometer yAl203 addition on superconducting properties of Bi16Pbo.4Sr2Ca2Cii30x (Bi-2223) superconductor / Masnita Mat Jusoh
title_full	Effects of nanometer yAl203 addition on superconducting properties of Bi16Pbo.4Sr2Ca2Cii30x (Bi-2223) superconductor / Masnita Mat Jusoh
title_fullStr	Effects of nanometer yAl203 addition on superconducting properties of Bi16Pbo.4Sr2Ca2Cii30x (Bi-2223) superconductor / Masnita Mat Jusoh
title_full_unstemmed	Effects of nanometer yAl203 addition on superconducting properties of Bi16Pbo.4Sr2Ca2Cii30x (Bi-2223) superconductor / Masnita Mat Jusoh
title_sort	effects of nanometer yal203 addition on superconducting properties of bi16pbo.4sr2ca2cii30x (bi-2223) superconductor / masnita mat jusoh
granting_institution	Universiti Teknologi MARA (UiTM)
granting_department	Faculty of Applied Sciences
publishDate	2011
url	https://ir.uitm.edu.my/id/eprint/65193/1/65193.pdf
_version_	1783735542139060224

Effects of nanometer yAl203 addition on superconducting properties of Bi16Pbo.4Sr2Ca2Cii30x (Bi-2223) superconductor / Masnita Mat Jusoh

Similar Items