电容器级高压钽粉脱氧技术研究

IF 4.6 2区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

International Journal of Refractory Metals & Hard Materials Pub Date : 2025-09-06 DOI:10.1016/j.ijrmhm.2025.107415

Xingyun Duan , Yi Xu , Fengming Chen , Yingjie Yu , Shuai Zhu , Yaping Lei , Anqi Huang , Fang Zhu , Weiwen Mei , Meibing Feng , Jiancheng Tang

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引用次数: 0

摘要

高压电容器级钽粉在制备过程中需要进行脱氧。在脱氧过程中，影响脱氧效果的因素很多。温度、时间和镁的用量是三个主要的影响因素。本文采用正交试验和控制变量法，研究了温度、时间和镁用量对钽粉最终氧含量的影响。结果表明，当温度为900 ~ 1000℃，镁用量比在200% ~ 400%范围内时，对钽粉氧含量有显著的强烈影响。当温度低于900℃时，钽粉的氧含量随温度的升高而显著降低。当温度高于950℃时，温度的持续升高对钽粉氧含量的降低影响不大。通过研究，得出最佳脱氧工艺为：950℃，保温3 h，镁的加入量为钽粉中氧总质量的400%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Study on deoxygenation technology of capacitor grade high voltage tantalum powder

High voltage capacitor grade tantalum powder needs to undergo deoxygenation in the preparation process. There are many factors in deoxygenation process that can affect the effect of deoxygenation. Temperature, time and magnesium dosage are the three main influencing factors. In this paper, the influence of temperature, time and magnesium dosage on the final oxygen content of tantalum powder was studied by orthogonal test and control variable method. The results show that when the temperature is 900–1000 °C and the magnesium dosage ratio in the range of 200 % - 400 %, it has a significant strong effect on the oxygen content of tantalum powder. When the temperature is lower than 900 °C, the oxygen content of tantalum powder decreases significantly with the increase of temperature. When the temperature is higher than 950 °C, the continuous increase of temperature has little effect on the reduction of oxygen content of tantalum powder. Through the research, we get the best deoxygenation process: 950 °C, heat preservation for 3 h, the amount of magnesium is 400 % of the total mass of oxygen in tantalum powder.

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来源期刊

$International Journal of Refractory Metals & Hard Materials$

International Journal of Refractory Metals & Hard Materials 工程技术-材料科学：综合

CiteScore

7.00

自引率

13.90%

发文量

236

审稿时长

35 days

期刊介绍： The International Journal of Refractory Metals and Hard Materials (IJRMHM) publishes original research articles concerned with all aspects of refractory metals and hard materials. Refractory metals are defined as metals with melting points higher than 1800 °C. These are tungsten, molybdenum, chromium, tantalum, niobium, hafnium, and rhenium, as well as many compounds and alloys based thereupon. Hard materials that are included in the scope of this journal are defined as materials with hardness values higher than 1000 kg/mm2, primarily intended for applications as manufacturing tools or wear resistant components in mechanical systems. Thus they encompass carbides, nitrides and borides of metals, and related compounds. A special focus of this journal is put on the family of hardmetals, which is also known as cemented tungsten carbide, and cermets which are based on titanium carbide and carbonitrides with or without a metal binder. Ceramics and superhard materials including diamond and cubic boron nitride may also be accepted provided the subject material is presented as hard materials as defined above.