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A comparative study of ZnNb2O6 nanoceramics synthesized by high energy ball milling and subsequent conventional and microwave annealing |
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| Authors: | H Barzegar Bafrooei E Taheri Nassaj T Ebadzadeh C F Hu |
| Affiliation: | 1. Department of Materials Science and Engineering, Tarbiat Modares University, P.O. Box 14115-143, Tehran, Iran 2. Ceramic Division, Materials and Energy Research Centre, P.O. Box 14155-4777, Alborz, Iran 3. Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, China |
| Abstract: | Ball-milling and subsequent conventional and microwave assisted heating processes have been applied to synthesize ZnNb2O6 nanoceramic. X-ray diffraction, simultaneous thermal analysis, scanning electron microscope (SEM), transmission electron microscope (TEM) and BET techniques were utilized to characterize the as-milled and annealed samples. Characterization of synthesized powders revealed that in spite of the very short heating time in the microwave process without soaking time, the powder heated at 550 °C had all physical properties similar to powders synthesized in conventional heating at the 650 °C temperature with a heating rate of 10 °C/min and a soaking time of 1 h. In addition, SEM, TEM and BET observations of synthesized powders showed that the particle size of powders lies in the nano meter range. |
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