A novel method for preparing ultrafine molybdenum powder

被引：20
作者：
Zhang, He [1 ]
Li, Zhi-Bo [1 ]
Zhang, Guo-Hua [1 ]
Chou, Kuo-Chih [1 ]
机构：
[1] Univ Sci & Technol Beijing, State Key Lab Adv Met, Beijing 100083, Peoples R China
来源：
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS | 2021年 / 96卷
关键词：
Molybdenum powder; Grain size; Dispersity; Carbothermic reduction; Hydrogen reduction;
D O I：
10.1016/j.ijrmhm.2021.105491
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this paper, using MoO3 as molybdenum source, ultrafine molybdenum powder is synthesized by a novel method composed of carbothermal reduction and the following hydrogen reduction stages. First, ultrafine MoO2 powders are successfully prepared via reduction of commercial MoO3 by carbon black with the molar ratio of C/ MoO3 ranging from 0.5 to 0.7 in the temperature range of 550 ?C to 650 ?C. after that, the ultrafine Mo powder with a good dispersity is synthesized through hydrogen reduction of the as prepared ultrafine MoO2. The grain size and residual carbon content of the finally obtained ultrafine molybdenum with molar ratio of C/MoO3 of 0.5 at 800 ?C are about 200 nm and 0.04 wt%, respectively. Moreover, the residual carbon content of the product could be decreased to about 0.006 wt% at 1000 ?C. the invention is characterized on short process flow, simple operation and low cost to prepare ultrafine molybdenum powder. Thus, it has great potential in large-scale industrial production
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页数：7
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共 37 条
[1]   Liquid phase sintering of mechanically alloyed Mo-Cu powders [J].
Benavides, Paola A. ;
Soto, Benjamin ;
Palma, Rodrigo H. .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2017, 701 :237-244
[2]   A study of the impact of reduction conditions on molybdenum morphology [J].
Bolitschek, J. ;
Luidold, S. ;
O'Sullivan, M. .
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS, 2018, 71 :325-329
[3]   Studies on the synthesis of a Mo-30 wt% W alloy by non-conventional approaches [J].
Chakraborty, S. P. ;
Banerjee, S. ;
Sanyal, Gopal ;
Bhave, V. S. ;
Paul, Bhaskar ;
Sharma, I. G. ;
Suri, A. K. .
JOURNAL OF ALLOYS AND COMPOUNDS, 2010, 501 (02) :211-217
[4]   Effect of nano-sized ZrO2 on high temperature performance of Mo-ZrO2 alloy [J].
Cui, Chaopeng ;
Zhu, Xiangwei ;
Liu, Shulong ;
Li, Qiang ;
Zhang, Min ;
Zhu, Guangping ;
Wei, Shizhong .
JOURNAL OF ALLOYS AND COMPOUNDS, 2018, 768 :81-87
[5]   Toward a quantitative understanding of mechanical behavior of nanocrystalline metals [J].
Dao, M. ;
Lu, L. ;
Asaro, R. J. ;
De Hosson, J. T. M. ;
Ma, E. .
ACTA MATERIALIA, 2007, 55 (12) :4041-4065
[6]   A review of refractory metal alloys and mechanically alloyed-oxide dispersion strengthened steels for space nuclear power systems [J].
El-Genk, MS ;
Tournier, JM .
JOURNAL OF NUCLEAR MATERIALS, 2005, 340 (01) :93-112
[7]   Co-sputtered MoRe thin films for carbon nanotube growth-compatible superconducting coplanar resonators [J].
Goetz, K. J. G. ;
Blien, S. ;
Stiller, P. L. ;
Vavra, O. ;
Mayer, T. ;
Huber, T. ;
Meier, T. N. G. ;
Kronseder, M. ;
Strunk, Ch ;
Huettel, A. K. .
NANOTECHNOLOGY, 2016, 27 (13)
[8]   In situ synthesis mechanism of Al2O3-Mo nanocomposite by ball milling process [J].
Heidarpour, A. ;
Karimzadeh, E. ;
Enayati, M. H. .
JOURNAL OF ALLOYS AND COMPOUNDS, 2009, 477 (1-2) :692-695
[9]   A mechanistic study on the production of nanosized Mo in microwave assisted combustive reduction of MoO3 by Zn [J].
Hoseinpur, Arman ;
Bafghi, Mohammad Sh. ;
Khaki, Jalil Vandati ;
Jalaly, Maisam ;
Sakaki, Masoud .
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS, 2015, 50 :191-196
[10]   Thermal analysis of electrodeposited nano-grained Ni-Mo alloys [J].
Hu, J. ;
Shi, Y. -N. ;
Lu, K. .
SCRIPTA MATERIALIA, 2018, 154 :182-185
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