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  • 张文,张胜楠,邵柏淘,曹浩,刘吉星,刘学谦,杨卿.Bi-2223 喷雾热分解粉末热处理工艺优化[J].低温物理学报,2021,(6):346-353.    [点击复制]
  • ZHANG Wen,ZHANG Shengnan?,SHAO Botao,CAO Hao,LIU Jixing,LIU Xueqian,YANG Qing.Optimization of Heat Treatment ProcessforBi-2223 Spray Pyrolysis Powders[J].LOW TEMPERATURE PHYSICAL LETTERS,2021,(6):346-353.   [点击复制]
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Bi-2223 喷雾热分解粉末热处理工艺优化
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(1.材料科学与工程学院, 西安理工大学, 陕西西安 710048;2.超导材料研究所, 西北有色金属研究院, 陕西西安 710016)
摘要:
Bi-2223 带材目前在电流引线、 超导电机、 超导电缆、 超导限流器等领域实现了许多示范性应用, 载流性能是表征其性能的重要指标, 而高质量的前驱体粉末是最终带材性能的关键保障. 本文选用具有工艺简单、 粉末效率高、 批次稳定性好等优点的喷雾热分解法制备的Bi-2223 前驱体粉末, 利用 TG-DSC、XRD、SEM 等测试手段对低氧条件下不同保温时间烧结的粉末进行分析, 并结合最终带材的载流性能测试结果, 获得了最优粉末烧结参数, 为后续喷雾热分解粉末的进一步生成 Bi-2223 相以及高性能粉末的制备提供了依据.
关键词:  高温超导材料, 铋系超导, 喷雾热分解法, 前驱体粉末
DOI:
基金项目:
Optimization of Heat Treatment ProcessforBi-2223 Spray Pyrolysis Powders
ZHANG Wen1,2, ZHANG Shengnan?3, SHAO Botao3, CAO Hao3, LIU Jixing3, LIU Xueqian3, YANG Qing1
(1.Material Science and Engineering ,Xi ’an University of Technology , Xi ’an 710048,China;2.超导材料研究所, 西北有色金属研究院, 陕西西安 710016;3.Superconducting Materials Research Center , Northwest Institute of Non-ferrous Metals Research , Xi ’an 710016 ,China)
Abstract:
Bi-2223 tapes have currently achieved many exemplary applications in the fields of current leads? superconducting motors, superconducting cables and superconducting current limiters. The current-carrying performance is an important indicator to characterize its performance, the high-quality precursor powder is the key guarantee for the final performance. In this paper, the Bi-2223 precursor powder prepared by spray pyrolysis method, which has the advantages of simple process, high powder efficiency and good batch stability. The powder was analyzed by TG-DSC, XRD and SEM, and combined with the current-carrying performance test results of the final tapes, the optimal powder sintering parameters were obtained, providing the basis the further generation of Bi- 2223 phase and the preparation of high-performance powders for subsequent spray pyrolysis powders.
Key words:  High-temperature superconductor materials, Bismuth-based superconductivity, Spray pyrolysis, Processor powders

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