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Bi2223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: |
投稿时间:2018-09-13修订日期:2019-03-31 |
基金项目: |
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Influences of collecting method on the fabrication of Bi-2223 precursor powders with spray pyrolysis method |
Liu Guoqing1, Jiao Gaofeng1, Xu Xiaoyan1, Zhang Shengnan1, Zheng Huiling1, Ma Xiaobo1, Jia Jialin1, Li Gaoshan1, Cui Lijun2, Hao Qingbin1, Li Chengshan1
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(1.Northwest Institute for Nonferrous Metal Research;2.Western Superconducting Technologies Co. Ltd.) |
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-2223 tapes. |
Key words: Bi-2223 spray pyrolysis powder in tube process one-step collection graded collection |