Table of Contents
Metals, Volume 9, Issue 3 (March 2019) – 114 articles
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Cover Story (view full-size image) This paper describes the synthesis of tungsten disulfide (WS2) powder by the sulfurization of [...] Read more. This paper describes the synthesis of tungsten disulfide (WS2) powder by the sulfurization of tungsten trioxide (WO3) particles in the presence of potassium carbonate in nitrogen atmosphere at two temperatures. In addition, the ultrasonic spray pyrolysis of ammonium meta-tungstate hydrate was used for the production of WO3 particles at 650 °C in air. The HSC Chemistry® software package 9.0 was used for the analysis of chemistry and thermodynamic parameters of the processes for WS2 synthesis. The crystalline structure and phase composition of the powders were analyzed by X-ray diffraction measurements. The morphology and chemical composition of these samples were examined by scanning electron microscopy combined with energy dispersive X-ray analysis. View this paper.