Transactions of Nonferrous Metals Society of China The Chinese Journal of Nonferrous Metals

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中国有色金属学报

ZHONGGUO YOUSEJINSHU XUEBAO

第32卷    第2期    总第275期    2022年2月

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文章编号:1004-0609(2022)-02-0520-09
氧化钨氢还原机理研究进展
姜平国1, 2,肖义钰2,喻相标2,李荣斌1

(1.上海电机学院材料学院材料学院,上海201306;
2.江西理工大学材料冶金与化学学部,赣州341000
)

摘 要: 钨金属硬度高,熔点高以及耐磨性优良,抗电子迁移能力强,广泛应用于工业的各个领域。目前工业上制取钨粉的方法普遍为氧化钨氢还原法,该方法清洁简单,但由于影响因素的繁杂和氢分子的难以检测,其还原机理特别是氢还原氧化钨的动力学机理尚待研究,制取均匀粒度超细钨粉技术参数的确定也有待科研者的努力。本文总结了氧化钨的氢还原现阶段的热力学、动力学机理和适用的动力学模型,并展望了利用计算机模拟技术进一步探究动力学机理和微观机理的方法。

 

关键字: 氧化钨;氢还原;计算机模拟

Research progress in hydrogen reduction of tungsten oxide
JIANG Ping-guo1,2,XIAO Yi-yu2, YU Xiang-biao2, LI Rong-bin1

1. School of Materials, Shanghai Dianji University, Shanghai201306, China;
2. Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou341000, China

Abstract:Tungsten metal is widely used for its high hardness, high meltingpoint and excellent wear resistance, strong anti-electron migration capability. At present, tungsten oxide hydrogen reduction is the most common method for tungsten production in industry. However, due to the complexity of influencing factors and the difficulty to detect hydrogen molecules, the reduction mechanism, especially the kinetic mechanism of hydrogen reduction of tungsten oxide, remains to be studied. The determination of technical parameters for preparing ultrafine tungsten powder with uniform particle size also needs the efforts of researchers. In this paper, the thermodynamics, kinetic mechanism and applicable kinetic model of hydrogen reduction of tungsten oxide were reviewed, and the approach of further exploring the kinetic mechanism and micro mechanism by using computer simulation technology was prospected.

 

Key words: tungsten oxide; hydrogen reduction; computer simulation

ISSN 1004-0609
CN 43-1238/TG
CODEN: ZYJXFK

ISSN 1003-6326
CN 43-1239/TG
CODEN: TNMCEW

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