前驱粉末装管法(PIT)是目前铋系高温超导带材制备的主要方法.要工程化生产超导带材,需要运行成本低,产品质量高,生产批量大,稳定可靠的粉末生产工艺.由于铋系超导前驱粉末特性,在带材制备过程中具有的重要影响,使得国内外非常重视制备高性能的超导前驱粉末.不同的粉末具有不同的化学成分、相组成和形貌粒度,这取决于采用的起始公称化学成分,制备方法,和后处理烧结工艺.本文就铋系超导体的主要的制粉方法,进行了较为详细的讨论、评述,并提出了适合于工程化制备铋系前驱体粉末的工艺路线,认为喷雾热解法制备超导前驱粉末将有利于铋系超导线材批量化的实现.
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