钠还原电容器级FTW70K钽粉中Si的来源及其存在形态分析  

Analysis on Source and Existence Forms of Si in Tantalum Powder of Sodium Reduction Capacitor Grade FTW70K

作　　者：李福成 柳金洲 包富贵 赵刚 Li Fucheng;Liu Jinzhou;Bao Fugui;Zhao Gang(Ningxia Orient Tantalum Industry Co.,Ltd.,Shizuishan 753000,China;State Key Laboratory of Special Rare Metal Materials,Shizuishan 753000,China;The State of Tantalum and Niobium Special Metal Materials Engineering Technology Research Center,Shizuishan 753000,China)

机构地区：[1]国家钽铌特种金属材料工程技术研究中心,宁夏石嘴山753000 [2]西北稀有金属材料研究院,稀有金属特种材料国家重点实验室,宁夏石嘴山753000 [3]中色(宁夏)东方集团有限公司,宁夏东方钽业股份有限公司,宁夏石嘴山753000

出　　处：《宁夏大学学报（自然科学版）》2020年第4期388-392,共5页Journal of Ningxia University(Natural Science Edition)

基　　金：国家“863”计划基金资助项目(715-005-0140);宁夏重点研发计划基金资助项目(2018BDE23009)。

摘　　要：研究在高温氩气保护下,金属钠将氟钽酸钾(K2TaF7)还原生成电容器级FTW70K高比容钽粉中,Si的来源及其存在的形态.分析电容器级FTW70K高比容钽粉中Si质量分数偏高的因素及对钽粉的化学性能、物理性能和电性能的影响,可为实际生产中降低和控制钽粉中Si的质量分数研究提供参考.The article studied the source and existence forms of Si after potassium fluotantalate(K 2TaF 7)was reduced by sodium metal to form capacitor grade FTW70K high specific capacity tantalum powder under the protection of high temperature argon.It analyzed the factors causing high Si mass fraction in capacitor grade FTW70K high specific capacity tantalum powder and its influence on the chemical,physical and electrical properties of tantalum powder,providing reference for the study of reducing and controlling the mass fraction of Si in tantalum powder in actual production.

关 键 词：电容器级钽粉 FTW70K高比容钽粉 SI 来源 存在形态 

分 类 号：TF841.6[冶金工程—有色金属冶金] TF03+3