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收集方式对喷雾热分解Bi-2223 前驱粉末的影响
刘国庆,焦高峰,徐晓燕,张胜楠,郑会玲,马小波,贾佳林,李高山,崔利军,郝淸滨,李成山
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(西北有色金属研究院, 陕西 西安710016;;西部超导材料科技股份有限公司, 陕西 西安710018)
摘要:
采用国产喷雾热分解设备制备了Bi-2223 前驱粉末, 分别选用一步收集和分级收集热分解后的粉末, 对不同方式收集的粉末进行了XRD 分析、SEM 观察以及ICP-AES 分析, 对比了粉末在相成份以及含量、 外观形貌、 粒径大小和元素原子配比等方面的差别, 最终发现采用一步收集方式采集的粉末在相组成、 成分均匀度以及原子配比方面均优于分级收集粉末, 一步收集方式更适合于收集Bi-2223 喷雾热分解粉末.
关键词:  Bi-2223, 喷雾热分解  粉末装管法  一步收集, 分级收集
DOI:10.13380/j.ltpl.2019.02.011
基金项目:
Influences of Collecting Method on the Fabrication of Bi-2223 Precursor Powders with Spray Pyrolysis Method
LIU Guoqing,JIAO Gaofeng,XU Xiaoyan,ZHANG Shengnan,ZHENG huiling,MA Xiaobo,JIA Jialin,LI Gaoshan,CUI Lijun,HAO Qingbin,LI Chengshan
(Northwest Institute for Nonferrous Metal Research ,Shaanxi , Xi ’an , 710016)
Abstract:
Bi-2223 precursor powders were fabricated based on the domestic spray pyrolysis equipment. Different powders were collected with different collection methods as one-step and graded collection process. XRD, SEM and ICP-AEC characterizations were performed to study the phase composition, microstructures, as well as the chemical composition of different powders. Based on the obtained results, it was deduced that the powders with one-step collection method exhibited higher uniformity on the phase composition, chemical composition and microstructures, thus would be more suitable for the fabrication of high property Bi-2223tapes.
Key words:  Bi-2223  spray pyrolysis  powder in tube process  one-step collection  graded collection

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