摘要
对低氧冶金级钽粉的生产工艺及产品性能进行了分析。通过钠还原氟钽酸钾的生产工艺得到的钽粉(FTa-1)是由许多原生粒子(又称一次粒子)结合组成、高比表面积空间网状结构的多孔团聚体,松装密度最小,比表面积最大,相应的氧含量也最高。经过氢化制粉得到的钽粉(FTa-2、FTa-3),经过高温烧结实现了致密化,颗粒形貌单一,是高纯的实心颗粒粉末,其松装密度大,比表面积较小,相应的氧含量也低。FTa-2、FTa-3钽粉比较适合于医用多孔钽的及3D打印的应用。
Manufacturing technique and performance of metallurgical grade tantalum powder with low oxygen were analyzed.FTa-1 tantalum powder obtained through reduction of potassium fluotantalate by sodium has space network structure composed of many primary particles（also known as primary particles）with smallest bulk density,largest specific surface area and highest oxygen content.FTa-2 and FTa-3 tantalum powders obtained through hydrogenation and milling are solid particles densified by hightemperature sintering.FTa-2 and FTa-3 tantalum powders are suitable for application of medical porous tantalum and 3D printing applications due to their large bulk density,small specific surface area and low oxygen content.
作者
任萍
杨国启
程越伟
陈学清
周慧琴
REN Ping;YANG Guo-qi;CHEN Yue-wei;CHENG Xue-qing;ZHOU Hui-qing(Ningxia Orient Tantalum Industry Co.,Ltd,Shizuishan 753000,Ningxia,China)
出处
《有色金属（冶炼部分）》
CAS
北大核心
2018年第8期60-63,73,共5页
Nonferrous Metals（Extractive Metallurgy)
基金
国家重点研发计划项目(2017YFB0305404)
关键词
冶金级钽粉
低氧
生产工艺
产品性能
metallurgical grade tantalum powder
low oxygen
production process
product performance
