Synthesis of Crystalline Tungsten Carbide Phases under the Influence of Atmospheric Electrical Arc Plasma on Tungsten Oxide

2021 ◽  
Vol 43 (3) ◽  
pp. 191-197
Author(s):  
O. Ya. Pak ◽  
T. Yu. Yakich ◽  
A. I. Kokorina ◽  
E. B. Akimova
Keyword(s):  
Tungsten Carbide ◽  
Tungsten Oxide ◽  
Arc Plasma ◽  
Electrical Arc ◽  
Carbide Phases

THE STATE OF THE ELECTRICAL ARC PLASMA

1980 ◽  
Vol 41 (C3) ◽  
pp. C3-217-C3-223
Author(s):  
J. Richter
Keyword(s):  
The State ◽  
Arc Plasma ◽  
Electrical Arc

Pseudomorphic Transformation of Inverse Opal Tungsten Oxide to Tungsten Carbide

2007 ◽  
Vol 19 (21) ◽  
pp. 3682-3686 ◽  
Author(s):  
J. C. Lytle ◽  
N. R. Denny ◽  
R. T. Turgeon ◽  
A. Stein
Keyword(s):  
Tungsten Carbide ◽  
Tungsten Oxide ◽  
Inverse Opal

Rh-Mn/tungsten carbides for direct synthesis of mixed alcohols from syngas: Effects of tungsten carbide phases

2018 ◽  
Vol 255 ◽  
pp. 44-52 ◽  
Author(s):  
Ba Da Won ◽  
Min Hye Jeong ◽  
Myeong Hun Kim ◽  
Chan-Hwa Chung ◽  
Dong Ju Moon ◽  
...  
Keyword(s):  
Tungsten Carbide ◽  
Direct Synthesis ◽  
Tungsten Carbides ◽  
Carbide Phases ◽  
Mixed Alcohols

Electrons, phonons and superconductivity in rocksalt and tungsten–carbide phases of CrC

2012 ◽  
Vol 24 (45) ◽  
pp. 455704 ◽  
Author(s):  
H M Tütüncü ◽  
S Baǧcı ◽  
G P Srivastava ◽  
A Akbulut
Keyword(s):  
Tungsten Carbide ◽  
Carbide Phases ◽  
And Tungsten

Effects of Mechanical Activation during the Synthesis of Tungsten Carbide Powders by Carbothermic Reduction of Tungsten Oxide

2011 ◽  
Vol 312-315 ◽  
pp. 248-252 ◽  
Author(s):  
J. Ma ◽  
Shi Gen Zhu ◽  
H. Ding ◽  
W.S. Gu
Keyword(s):  
Tungsten Carbide ◽  
Tungsten Oxide ◽  
Carbothermal Reduction ◽  
Carbothermic Reduction ◽  
Milled Powder ◽  
Reduction Reaction ◽  
Isothermal Treatment ◽  
X Ray Diffraction ◽  
Rapid Reduction ◽  
X Ray

In this work, the effects of mechanical milling on the extent of reduction were investigated to give an overview of potential improvements in the preparation of WC. A mixture of graphite and tungsten oxide (WO3) was mechanically milled together for 10 h. The as-milled powder and un-milled powder were investigated by thermal analysis, isothermal treatment, and X-ray diffraction to determine the effect of milling on the carbothermal reduction of WO3 to tungsten carbide (WC). The as-milled powder underwent a rapid reduction reaction at about 150°C lower than the un-milled powder. The reduction sequence to WC was illustrated to differ for the two powders. The milled powder showed complete reduction to WC in 1 h at 1215°C whereas the un-milled powder was incompletely reduced. Finally, WC powder was readily achieved by carbothermic reduction of mechanical activated WO3 and graphite, leaving its grains nano-sized.

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