溶液纺丝制备Nd123长丝超导体的OCMG工艺

Tomoko Goto, Masahide Takahama, Takuji Kimura
{"title":"溶液纺丝制备Nd123长丝超导体的OCMG工艺","authors":"Tomoko Goto,&nbsp;Masahide Takahama,&nbsp;Takuji Kimura","doi":"10.1016/S0964-1807(98)00096-9","DOIUrl":null,"url":null,"abstract":"<div><p><span>The oxygen controlled melt growth (OCMG) process for filamentary Nd123 superconductors has been studied to enhance the </span><em>J</em><sub>c</sub> values. The filamentary Nd<sub>1.18</sub>Ba<sub>2.12</sub>Cu<sub>3.09</sub>O<sub><em>x</em></sub> (1) and Nd<sub>1.25</sub>Ba<sub>2.05</sub>Cu<sub>3.10</sub>O<sub><em>x</em></sub> (2) precursors were prepared by dry spinning through a homogeneous aqueous solution containing mixed acetates of Nd, Ba and Cu, poly(vinyl alcohol). The calcined filaments were partially melted in flowing 0.1% O<sub>2</sub>+Ar. The <em>T</em><sub>c</sub> values of filament (1) was 94.5<!--> <!-->K and 88.5<!--> <!-->K for filament (2). By controlling the heating condition, maximum <em>J</em><sub>c</sub> values of 2.4×10<sup>4</sup> A/cm<sup>2</sup> and 1.8×10<sup>4</sup> A/cm<sup>2</sup> at 77<!--> <!-->K and 0<!--> <!-->T were attained for filaments (1) and (2), respectively. A window of the optimum heating conditions for filament (2) was narrow and the reproducibility of the high <em>J</em><sub>c</sub> value was poor.</p></div>","PeriodicalId":100110,"journal":{"name":"Applied Superconductivity","volume":"6 2","pages":"Pages 157-162"},"PeriodicalIF":0.0000,"publicationDate":"1998-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0964-1807(98)00096-9","citationCount":"3","resultStr":"{\"title\":\"OCMG process for filamentary Nd123 superconductor produced by solution spinning\",\"authors\":\"Tomoko Goto,&nbsp;Masahide Takahama,&nbsp;Takuji Kimura\",\"doi\":\"10.1016/S0964-1807(98)00096-9\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p><span>The oxygen controlled melt growth (OCMG) process for filamentary Nd123 superconductors has been studied to enhance the </span><em>J</em><sub>c</sub> values. The filamentary Nd<sub>1.18</sub>Ba<sub>2.12</sub>Cu<sub>3.09</sub>O<sub><em>x</em></sub> (1) and Nd<sub>1.25</sub>Ba<sub>2.05</sub>Cu<sub>3.10</sub>O<sub><em>x</em></sub> (2) precursors were prepared by dry spinning through a homogeneous aqueous solution containing mixed acetates of Nd, Ba and Cu, poly(vinyl alcohol). The calcined filaments were partially melted in flowing 0.1% O<sub>2</sub>+Ar. The <em>T</em><sub>c</sub> values of filament (1) was 94.5<!--> <!-->K and 88.5<!--> <!-->K for filament (2). By controlling the heating condition, maximum <em>J</em><sub>c</sub> values of 2.4×10<sup>4</sup> A/cm<sup>2</sup> and 1.8×10<sup>4</sup> A/cm<sup>2</sup> at 77<!--> <!-->K and 0<!--> <!-->T were attained for filaments (1) and (2), respectively. A window of the optimum heating conditions for filament (2) was narrow and the reproducibility of the high <em>J</em><sub>c</sub> value was poor.</p></div>\",\"PeriodicalId\":100110,\"journal\":{\"name\":\"Applied Superconductivity\",\"volume\":\"6 2\",\"pages\":\"Pages 157-162\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1998-02-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/S0964-1807(98)00096-9\",\"citationCount\":\"3\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Applied Superconductivity\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0964180798000969\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Applied Superconductivity","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0964180798000969","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 3

摘要

研究了线状Nd123超导体的氧控熔体生长(OCMG)工艺,以提高其Jc值。采用干法纺丝法制备了Nd1.18Ba2.12Cu3.09Ox(1)和Nd1.25Ba2.05Cu3.10Ox(2)前驱体,制备了Nd1.18Ba2.12Cu3.09Ox(1)前驱体。煅烧后的细丝在流动的0.1% O2+Ar中部分熔化。灯丝(1)的Tc值为94.5 K,灯丝(2)的Tc值为88.5 K。通过控制加热条件,灯丝(1)和灯丝(2)在77 K和0 T时的最大Jc值分别为2.4×104 A/cm2和1.8×104 A/cm2。灯丝(2)的最佳加热条件窗口较窄,高Jc值的重现性较差。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
OCMG process for filamentary Nd123 superconductor produced by solution spinning

The oxygen controlled melt growth (OCMG) process for filamentary Nd123 superconductors has been studied to enhance the Jc values. The filamentary Nd1.18Ba2.12Cu3.09Ox (1) and Nd1.25Ba2.05Cu3.10Ox (2) precursors were prepared by dry spinning through a homogeneous aqueous solution containing mixed acetates of Nd, Ba and Cu, poly(vinyl alcohol). The calcined filaments were partially melted in flowing 0.1% O2+Ar. The Tc values of filament (1) was 94.5 K and 88.5 K for filament (2). By controlling the heating condition, maximum Jc values of 2.4×104 A/cm2 and 1.8×104 A/cm2 at 77 K and 0 T were attained for filaments (1) and (2), respectively. A window of the optimum heating conditions for filament (2) was narrow and the reproducibility of the high Jc value was poor.

求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
自引率
0.00%
发文量
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信