Self-sustaining reduction of MoO3 by the Mg-C mixture

被引：35

作者：

Aydinyan, S. V. ^{[1
]}

Gumruyan, Zh ^{[1
]}

Manukyan, Kh V. ^{[1
,2
]}

Kharatyan, S. L. ^{[1
,2
]}

机构：

[1] Yerevan State Univ, Dept Inorgan Chem, Yerevan 0025, Armenia

[2] AB Nalbandyan Inst Chem Phys NAS RA, Lab Kinet SHS Proc, Yerevan 0014, Armenia

来源：

MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS | 2010年 / 172卷 / 03期

关键词：

Molybdenum oxide; Magnesium; Carbon; Molybdenum; Combustion synthesis; HYDROGEN-REDUCTION; DENSIFICATION BEHAVIOR; OXIDE REDUCTION; ALLOYS; POWDER; NANOPOWDERS; COMPACTION; MECHANISM; PRESSURE; KINETICS;

D O I：

10.1016/j.mseb.2010.05.028

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The possibility of the molybdenum oxide (MoO3) reduction by the Mg-C mixture was investigated under the self-sustaining combustion regime. Thermodynamic analyses for the MoO3-xMg-yC system were performed. Optimal ranges of x and y coefficients to ensure complete reduction of MoO3 to metallic molybdenum were found. The influence of x and y values on the process parameters (e.g. temperature, front propagation velocity), phase composition and the structure of products were investigated experimentally. Optimum reduction conditions of MoO3 to fine (1-3 mu m) molybdenum powder were defined. Possible mechanism of the molybdenum oxide reduction to metallic molybdenum was proposed. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：267 / 271

页数：5

共 28 条

[1]

[Anonymous], 2007, COMBUSTION HETEROGEN

[2]

[Anonymous], 2004, MET POWDER REPORT, DOI DOI 10.1016/S0026-0657(04)00073-6

[3] Combustion synthesis and nanomaterials [J].

Aruna, Singanahally T. ;

Mukasyan, Alexander S. .

CURRENT OPINION IN SOLID STATE & MATERIALS SCIENCE, 2008, 12 (3-4) :44-50

[4] Utilization of mill scale and recycled MoO3 from spent acid for economic synthesis of nanocrystalline intermetallic Fe-Mo alloys [J].

Bahgat, M. ;

Paek, Min-Kyu ;

Pak, Jong-Jin .

JOURNAL OF ALLOYS AND COMPOUNDS, 2009, 477 (1-2) :445-449

[5]

Braithwaite ER Haber J., 1994, Molybdenum: an outline of its chemistry and uses

[6] Kinetics and mechanism of carbothermic reduction of MoO3 to Mo2C [J].

Chaudhury, S ;

Mukerjee, SK ;

Vaidya, VN ;

Venugopal, V .

JOURNAL OF ALLOYS AND COMPOUNDS, 1997, 261 (1-2) :105-113

[7] Effect of die compaction pressure on densification behavior of molybdenum powders [J].

Garg, Pranav ;

Park, Seong-Jin ;

German, Randall M. .

INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS, 2007, 25 (01) :16-24

[8]

GRIGORYAN Y, 2009, 10 INT S SHS TSAKHK, V243

[9] Formation of COx species during the carbothermal reduction of oxides of Zr, Si, Ti, Cr, W, and Mo [J].

Gruner, W ;

Stolle, S ;

Wetzig, K .

INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS, 2000, 18 (2-3) :137-145

[10] Metallothermic reduction of MoO3 through making Ni-Mo alloys by the ESR method [J].

Jamshidi, K ;

Abdizadeh, H ;

Ebrahimi, SAS ;

Hanai, K .

INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS, 2004, 22 (06) :243-245

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