Synthesis of hexagonal tungsten carbide in tungsten–sodium and supercritical carbon dioxide system

Synthesis of hexagonal tungsten carbide in tungsten–sodium and supercritical carbon dioxide system

Hexagonal tungsten carbide was synthesized in the thermal system of tungsten–sodium and supercritical carbon dioxide at moderate temperature (600 °C). The synthesized samples were characterized by XRD and SEM. The possible conversion mechanism from tungsten to tungsten carbide was discussed also.

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Bibliographische Detailangaben
Veröffentlicht in:Materials chemistry and physics 2006-01, Vol.95 (1), p.113-116
Hauptverfasser: Wang, Qiang, Cao, Fangyu, Chen, Qianwang
Format: Artikel
Sprache:eng
Schlagworte:
Carbon dioxide
Oxidation and reduction
Tungsten carbide
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Zusammenfassung:Hexagonal tungsten carbide was synthesized in the thermal system of tungsten–sodium and supercritical carbon dioxide at moderate temperature (600 °C). The synthesized samples were characterized by XRD and SEM. The possible conversion mechanism from tungsten to tungsten carbide was discussed also.
ISSN:0254-0584
1879-3312
DOI:10.1016/j.matchemphys.2005.06.008