文章信息/Info

Title:

The Key Technique and R&D of Capacitor Crade Tantalum Powder

作者:

何季麟1; 3; 張學清2; 3; 楊國啟2; 3; 鄭愛國2; 3

1中色（寧夏）東方集團有限公司 寧夏 石嘴山 753000

2寧夏東方鉭業(yè)股份有限公司 寧夏 石嘴山 753000

3國家鉭鈮特種金屬材料工程技術(shù)研究中心 寧夏 石嘴山 753000

Author(s):

He Jilin1;  3;  Zhang Xueqing2;  3;  Yang Guoqi2;  3;  Zheng Aiguo2;  3

1. CNMC Ningxia Orient Group CO.,LTD., Ningxia, Shizuishan 753000

2. Ningxia Orient Tantalum Industry CO.,LTD, Ningxia , Shizuishan 753000

3. National Engineering Research Center of Tantalum and Niobium, Ningxia , Shizuishan 753000

關(guān)鍵詞:

鉭電容器; 高比容鉭粉; 高壓鉭粉; 中壓（片狀）鉭粉; 關(guān)鍵技術(shù); 高比容化; 高壓化

DOI:

10.7502/j.issn.1674-3962.2014.09.02

文獻標志碼:

A

摘要:

引述了鉭電容器與鋁電容器、多層陶瓷電容器相比突出的性能與應(yīng)用特征，分析了鉭電容器片式化、小型化促進電容器級鉭粉高比容化發(fā)展的新趨勢，敘述了航空、航天和軍工領(lǐng)域?qū)Ω邏弘娙萜鞲呖煽啃阅苄枨螅�以及對中高壓鉭粉向更高電壓、更低SER方向發(fā)展的引領(lǐng)，回顧了電容器用高比容鉭粉、中高壓鉭粉發(fā)展應(yīng)用進程，介紹了經(jīng)典氟鉭酸鉀（K2TaF7）金屬鈉還原法、電子束熔煉法、球磨片式化法生產(chǎn)的高比容鉭粉、高壓鉭粉、中壓（片狀）鉭粉的性能、產(chǎn)品品級及關(guān)鍵技術(shù)，分析了30-80kμFV/g鉭粉耐壓性能影響因素，介紹了鉭粉高比容化、高壓化新技術(shù)、裝置、產(chǎn)品形貌、性能及優(yōu)缺點,在此基礎(chǔ)上提出了電容器級鉭粉高比容化、高壓化創(chuàng)新進步的思路。

Abstract:

This paper cites the characteristics of tantalum capacitors, applications and application characteristics of aluminum capacitors and multilayer ceramic capacitors. It analyzes the new trends that the chip-based and miniaturization tantalum capacitors led capacitor grade tantalum powder to higher capacity. It describes the challenges of the demand for high reliability in high-voltage tantalum powder of aviation, aerospace and military field voltage capacitor to a higher voltage and lower ESR direction. It reviews the application development process of the capacitor tantalum powder with high capacitance tantalum powder, high voltage tantalum powder and medium voltage (flake) tantalum powder. It analyzes the performance, product and key technologies current status of high capacitance tantalum powder, high voltage tantalum powder and medium voltage(flake) tantalum powder of the classical methods of potassium tantalum fluoride (K2TaF7) sodium metal reduction, electron beam melting , ball milled production. For 30-80k μ FV/g tantalum powder，the influence factors of withstand voltage performance have been analyzed. Finally，it presents new technologies, devices, products morphology, performance, advantages and disadvantages of the high capacitance tantalum powder and high voltage technology. On the basis of capacitor grade tantalum powder, this paper point out sustainable development ideas of higher capacitance and higher voltage for tantalum capacitors.