Effects of calcination conditions on phase formation and particle size of Zn<inf>2</inf>Nb<inf>34</inf>O<inf>87</inf> powders synthesized by solid-state reaction

• Main Authors: Penphitcha Amonpattaratkit, Supon Ananta
• Format: Journal
• Published: 2018
• Online Access: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84873373053&origin=inward; http://cmuir.cmu.ac.th/jspui/handle/6653943832/48111
• Institution: Chiang Mai University

Phase formation and particle size of Zn 2 Nb 34 O 87 powders which were synthesized by a solid state reaction via a simple vibro-milling technique have been investigated as a function of calcination conditions, for the first time, by using a combination of X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy-dispersive X-ray (EDX) techniques. In general, the results shown that increasing calcination temperature, dwell time or heating/cooling rates can effectively increase both purity and particle size of the desired Zn 2 Nb 34 O 87 powders. Moreover, It has been found that the optimization of calcination condition (900°C, 1 h, 20°C/min) can successfully lead to a single-phase of submicrometer-sized Zn 2 Nb 34 O 87 powders.