期刊
CERAMICS INTERNATIONAL
卷 46, 期 2, 页码 2580-2584出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2019.09.221
关键词
Sintering; Microstructures; Nitrides; Cutting tools
资金
- National Natural Science Foundation of China [11602244, 11702270]
- Scientific Research Fund of Sichuan Provincial Education Department [16Za0129]
Herein, we report a novel method for producing nanoscale tungsten nitride (WN) nanoparticles, the main feature of which is the use of dicyandiamide (C2H4N4) as a non-toxic nitrogen source without an inert atmosphere. The WN nanoparticles were successfully synthesised by a temperature-programmed reaction of Na2WO4 and C2H4N4 powders at an intermediate temperature of 500-800 degrees C in air. Transmission electron microscopy (TEM) results revealed that WN nanoparticles with good crystallinity and an average size of 5.58 nm were obtained at a sintering temperature of 600 degrees C. This method can be extended to synthesise other transition metal nitride materials in air atmosphere.
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