Effect of stanum doping and heat treatment on Bi-Sr-Ca-Cu-O superconducting ceramics
The influence of Sn doping in calcium (Ca) and copper (Cu) sItes either temperature for 30 hours soaking time were studied For Sn-free sample. heat treatment improved the superconducting transition temperature, TC(RI)) from 100 K to 104 K, when the sintered sample was annealed at 820°C The highes...
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1999
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my-upm-ir.86572023-12-14T00:24:15Z Effect of stanum doping and heat treatment on Bi-Sr-Ca-Cu-O superconducting ceramics 1999-12 Hashim @ Ismail, Azhan The influence of Sn doping in calcium (Ca) and copper (Cu) sItes either temperature for 30 hours soaking time were studied For Sn-free sample. heat treatment improved the superconducting transition temperature, TC(RI)) from 100 K to 104 K, when the sintered sample was annealed at 820°C The highest Tc(R=0) of 104 K was observed for sintered sample (x=0 02) with simultaneous doping The heat treatment improved the Tc(R=0) from 60 K to 94 K or sample doped 111 Ca site when re-sintered at 855°C and from 66 K to 100 K for sample doped with Sn in Cu site when annealed at 840°C For simultaneous doping, the T C(R 0) dId not change significantly after heat treatment except for sample with x=0 05 that showed drastic improvement of T C(R=U) from 64 K (sintered) to above 100 K From XRD analysis, the volume of 2223 phase decreased as the Sn concentration increased A ll samples with Sn concentration above x=0 10 contall1ed unknown peaks which con respond to the non-superconducting phase although the lattice parameter of the samples shortened, the crystallographic structure remained in the tetragonal form. Ceramic superconductor 1999-12 Thesis http://psasir.upm.edu.my/id/eprint/8657/ http://psasir.upm.edu.my/id/eprint/8657/1/FSAS_1999_12_IR.pdf text en public doctoral Universiti Putra Malaysia Ceramic superconductor Faculty of Environmental Studies Shaari, Abdul Halim English |
| institution |
Universiti Putra Malaysia |
| collection |
PSAS Institutional Repository |
| language |
English English |
| advisor |
Shaari, Abdul Halim |
| topic |
Ceramic superconductor |
| spellingShingle |
Ceramic superconductor Hashim @ Ismail, Azhan Effect of stanum doping and heat treatment on Bi-Sr-Ca-Cu-O superconducting ceramics |
| description |
The influence of Sn doping in calcium (Ca) and copper (Cu) sItes either
temperature for 30 hours soaking time were studied For Sn-free sample. heat
treatment improved the superconducting transition temperature, TC(RI)) from 100
K to 104 K, when the sintered sample was annealed at 820°C The highest Tc(R=0)
of 104 K was observed for sintered sample (x=0 02) with simultaneous doping
The heat treatment improved the Tc(R=0) from 60 K to 94 K or sample doped 111
Ca site when re-sintered at 855°C and from 66 K to 100 K for sample doped with
Sn in Cu site when annealed at 840°C For simultaneous doping, the T C(R 0) dId
not change significantly after heat treatment except for sample with x=0 05 that
showed drastic improvement of T C(R=U) from 64 K (sintered) to above 100 K
From XRD analysis, the volume of 2223 phase decreased as the Sn
concentration increased A ll samples with Sn concentration above x=0 10
contall1ed unknown peaks which con respond to the non-superconducting phase
although the lattice parameter of the samples shortened, the crystallographic
structure remained in the tetragonal form. |
| format |
Thesis |
| qualification_level |
Doctorate |
| author |
Hashim @ Ismail, Azhan |
| author_facet |
Hashim @ Ismail, Azhan |
| author_sort |
Hashim @ Ismail, Azhan |
| title |
Effect of stanum doping and heat treatment on Bi-Sr-Ca-Cu-O superconducting ceramics |
| title_short |
Effect of stanum doping and heat treatment on Bi-Sr-Ca-Cu-O superconducting ceramics |
| title_full |
Effect of stanum doping and heat treatment on Bi-Sr-Ca-Cu-O superconducting ceramics |
| title_fullStr |
Effect of stanum doping and heat treatment on Bi-Sr-Ca-Cu-O superconducting ceramics |
| title_full_unstemmed |
Effect of stanum doping and heat treatment on Bi-Sr-Ca-Cu-O superconducting ceramics |
| title_sort |
effect of stanum doping and heat treatment on bi-sr-ca-cu-o superconducting ceramics |
| granting_institution |
Universiti Putra Malaysia |
| granting_department |
Faculty of Environmental Studies |
| publishDate |
1999 |
| url |
http://psasir.upm.edu.my/id/eprint/8657/1/FSAS_1999_12_IR.pdf |
| _version_ |
1794018768191488000 |