Synthesis of Pure 80K Bulk Material in Y-Sr-Cu-O System

Synthesis of Pure 80K Bulk Material in Y-Sr-Cu-O System

碩士 === 淡江大學 === 物理研究所 === 81 === In this research the frabrication of 80K phase bulk material of high Tc superconducting Y-Sr-Cu-O system was studied. Solid state reaction method was used. Due to the instability of the structure of 80K phas...

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Main Authors: Gung shaw-yuan, 龔紹淵
Other Authors: Chien F.Z.
Format: Others
Language:zh-TW
Published: 1993
Online Access:http://ndltd.ncl.edu.tw/handle/63370117267843112693
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spelling ndltd-TW-081TKU001980082016-02-10T04:08:48Z http://ndltd.ncl.edu.tw/handle/63370117267843112693 Synthesis of Pure 80K Bulk Material in Y-Sr-Cu-O System 釔鍶銅氧系統80K相高溫超導體塊材純化之研究 Gung shaw-yuan 龔紹淵 碩士 淡江大學 物理研究所 81 In this research the frabrication of 80K phase bulk material of high Tc superconducting Y-Sr-Cu-O system was studied. Solid state reaction method was used. Due to the instability of the structure of 80K phase, doping of Mo atom is needed in the material preparation. Although the structure of 80K phase was identified to be similar to YBCO123 as that of 40k phase, but its chemical composition is Sr-rich and deviated from the proportionality of 1-2-3. The annealing temperature for 80K phase varies from 1050℃ to 1175℃ when the oxygen pressure change from 1x10^-3 torr to 6atm. The best post-annealing condition is at 900℃ and O2 of 1atm. Chien F.Z. 錢凡之 1993 學位論文 ; thesis 58 zh-TW
collection NDLTD
language zh-TW
format Others
sources NDLTD
description 碩士 === 淡江大學 === 物理研究所 === 81 === In this research the frabrication of 80K phase bulk material of high Tc superconducting Y-Sr-Cu-O system was studied. Solid state reaction method was used. Due to the instability of the structure of 80K phase, doping of Mo atom is needed in the material preparation. Although the structure of 80K phase was identified to be similar to YBCO123 as that of 40k phase, but its chemical composition is Sr-rich and deviated from the proportionality of 1-2-3. The annealing temperature for 80K phase varies from 1050℃ to 1175℃ when the oxygen pressure change from 1x10^-3 torr to 6atm. The best post-annealing condition is at 900℃ and O2 of 1atm.
author2 Chien F.Z.
author_facet Chien F.Z.
Gung shaw-yuan
龔紹淵
author Gung shaw-yuan
龔紹淵
spellingShingle Gung shaw-yuan
龔紹淵
Synthesis of Pure 80K Bulk Material in Y-Sr-Cu-O System
author_sort Gung shaw-yuan
title Synthesis of Pure 80K Bulk Material in Y-Sr-Cu-O System
title_short Synthesis of Pure 80K Bulk Material in Y-Sr-Cu-O System
title_full Synthesis of Pure 80K Bulk Material in Y-Sr-Cu-O System
title_fullStr Synthesis of Pure 80K Bulk Material in Y-Sr-Cu-O System
title_full_unstemmed Synthesis of Pure 80K Bulk Material in Y-Sr-Cu-O System
title_sort synthesis of pure 80k bulk material in y-sr-cu-o system
publishDate 1993
url http://ndltd.ncl.edu.tw/handle/63370117267843112693
work_keys_str_mv AT gungshawyuan synthesisofpure80kbulkmaterialinysrcuosystem
AT gōngshàoyuān synthesisofpure80kbulkmaterialinysrcuosystem
AT gungshawyuan yǐsōngtóngyǎngxìtǒng80kxiānggāowēnchāodǎotǐkuàicáichúnhuàzhīyánjiū
AT gōngshàoyuān yǐsōngtóngyǎngxìtǒng80kxiānggāowēnchāodǎotǐkuàicáichúnhuàzhīyánjiū
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