高比容钽粉的微观结构及电性能特性的研究
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摘要
随着钽电容器高比容化和小型化的发展,150~200 kμFV/g比容的钽粉已被电容器厂家投入生产并使用。研究通过SEM、BET、孔隙度分布及粒度分布的测试对150 kμFV/g、200 kμFV/g比容的钽粉进行微观结构的研究,展示了这两种粉末的粒径分布,分析了在粉末状态和烧结阳极体的孔隙度变化,研究了不同倍数下的颗粒微观形貌,进行了烧结温度特性、电压特性和频率特性的电性能特性研究。
With the tantalum capacitors being demand to have a small size and a large capacitance,tantalum powder with specific charges of 150,000 to 20,000 μFV/g were produced and used by the manufacturers of tantalum powder and capacitors.This paper discussed the microstructure of tantalum powder with specific charges of 150,000 to 20,000 μFV/g through measuring SEM,BET,porosity and particle size distribution.This study showed the SEM and particle size distribution of these powders,analyzed the porosity of these powder and sintered anode.And the characteristics of sintering temperature,voltage and frequency of the sintered anode formed from these tantalum powders were researched.
With the tantalum capacitors being demand to have a small size and a large capacitance,tantalum powder with specific charges of 150,000 to 20,000 μFV/g were produced and used by the manufacturers of tantalum powder and capacitors.This paper discussed the microstructure of tantalum powder with specific charges of 150,000 to 20,000 μFV/g through measuring SEM,BET,porosity and particle size distribution.This study showed the SEM and particle size distribution of these powders,analyzed the porosity of these powder and sintered anode.And the characteristics of sintering temperature,voltage and frequency of the sintered anode formed from these tantalum powders were researched.
引文
[1]何季麟.钽铌工业的进步与展望[J].稀有金属,2003,27(1):23.
[2]杨国启,何季麟,郑爱国,等.电容器级高比容钽粉制备工艺研究进展[J].湖南有色金属,2014,30(1):48-51.
[3]He Jilin,Yang Guoqi,Pan Luntao.Flake tantalum powder for manufacturing electrolytic capacitors[J].Rare Metals,2008,27(1):22-26.
[4]陈国光.电解电容器[M].西安:西安交通大学出版社,1993.
[5]郭青蔚,王肈信.现代铌钽冶金[M].北京:冶金工业出版社,2009.
[6]刘洪东.电容器级钽粉和阳极块显微结构及微观结构研究[D].长沙:中南工业大学,2000.
[7]杨国启,潘伦桃,刘红东,等.用于中高压电解电容器的片状钽粉[J].中国材料与设备,2006,(3):39-42.
[8]何季麟,潘伦桃,郑爱国.氧化钽(铌)还原制取钽(铌)粉的新方法[J].矿业研究与开发,2003,8(S1):15-17.
[2]杨国启,何季麟,郑爱国,等.电容器级高比容钽粉制备工艺研究进展[J].湖南有色金属,2014,30(1):48-51.
[3]He Jilin,Yang Guoqi,Pan Luntao.Flake tantalum powder for manufacturing electrolytic capacitors[J].Rare Metals,2008,27(1):22-26.
[4]陈国光.电解电容器[M].西安:西安交通大学出版社,1993.
[5]郭青蔚,王肈信.现代铌钽冶金[M].北京:冶金工业出版社,2009.
[6]刘洪东.电容器级钽粉和阳极块显微结构及微观结构研究[D].长沙:中南工业大学,2000.
[7]杨国启,潘伦桃,刘红东,等.用于中高压电解电容器的片状钽粉[J].中国材料与设备,2006,(3):39-42.
[8]何季麟,潘伦桃,郑爱国.氧化钽(铌)还原制取钽(铌)粉的新方法[J].矿业研究与开发,2003,8(S1):15-17.