Effects of calcination conditions on phase formation and particle size of Zn2Nb34O87 powders synthesized by solid-state reaction

• Main Authors: Amonpattaratkit P., Ananta S.
• Format: Article
• Language: English
• Published: 2014
• Online Access: http://www.scopus.com/inward/record.url?eid=2-s2.0-84873373053&partnerID=40&md5=6cab268cf362fb611a0753701fd02bca; http://cmuir.cmu.ac.th/handle/6653943832/7003
• Institution: Chiang Mai University

Phase formation and particle size of Zn2Nb34O87 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 Zn2Nb34O87 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 Zn2Nb34O87 powders.