25V-30000μFV/g钽粉的研制及其性能  

Preparation and Properties of 25V-30000μFV g Tantalum Powder

作　　者：赵春霞 陈学清 李仲香 师德军 ZHAO Chunxia;CHEN Xueqing;LI Zhongxiang;SHI Dejun(Ningxia Orient Tantalum Industry Co.,Ltd.,Shizuishan 753000,Ningxia,China)

机构地区：[1]宁夏东方钽业股份有限公司,宁夏石嘴山753000

出　　处：《有色金属（冶炼部分）》2024年第8期150-154,共5页Nonferrous Metals（Extractive Metallurgy)

基　　金：宁夏回族自治区重点研发计划资助项目(2022BDE92020)。

摘　　要：介绍了25V-30000μFV/g钽粉的研制流程及其性能,分析了该钽粉的理化性能、电气性能,以及电容器厂家验证使用情况。该产品以钠还原钽粉为原料,采用球磨片式化的方法生产的片状钽粉,具有较大的比表面积(0.80~0.90 m^(2)/g)和较大的径厚比(3.0~8.0),兼具高压高比容特性。湿式检测表明,在100 V形成电压下,容量达到30000μFV/g以上,制作63V-3300μF等型号电容器时,容量达到31000μFV/g以上,满足产品设计要求。The development process and properties of 25V-30000μFV g tantalum powder were introduced.The physical,chemical and electrical properties of the powder and its verification use in capacitor manufactures were analyzed.The product is a sheet-like tantalum powder produced by ball milling using sodium reduction powder as the raw material,with a larger specific surface area(0.80-0.90 m 2 g)and a larger diameter to thickness ratio(3.0-8.0),as well as high pressure and high specific volume characteristics.The wet test shows that the capacity reaches more than 30000μFV g under 100 V forming voltage,and the capacity reaches more than 31000μFV g when produce 63V-3300μF type capacitors,which meets the requirements of product design.

关 键 词：25V-30000μFV/g钽粉 理化性能 电气性能 电容器 

分 类 号：TF841.6[冶金工程—有色金属冶金]