Rapid iron borate (FeBO3) powder fabrication using microwave heating

Chia-En Yang; Jiping Cheng; Shizhuo Yin

doi:10.1117/12.862145

18 August 2010 Rapid iron borate (FeBO3) powder fabrication using microwave heating

Chia-En Yang, Jiping Cheng, Shizhuo Yin

Proceedings Volume 7781, Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications IV; 778113 (2010) https://doi.org/10.1117/12.862145
Event: SPIE Photonic Devices + Applications, 2010, San Diego, California, United States

Abstract

Microwave assisted synthesis of crystalline FeBO₃ powder is investigated in a multimode cavity at 2.45GHz as a possible method for faster synthesis. An Alumina-SiC susceptor enclosure was placed inside the cavity to overcome poor microwave absorption of the precursor at low temperatures. Enhanced diffusion was observed with appropriate precursor viscosity at reaction temperature. Less than 8 hours was found enough to complete FeBO₃ synthesis, as compared with more than 20 hours of synthesis using conventional muffle oven. Microwave enhanced diffusion was not obvious with too high viscosity and eventually leveled by thermal diffusion with too low viscosity. The microwave synthesized FeBO₃ particles were found more rhombohedral and smaller than conventional furnace synthesized ones, thus are inherently more suitable as optical composite materials.

Citation Download Citation

Chia-En Yang, Jiping Cheng, and Shizhuo Yin "Rapid iron borate (FeBO3) powder fabrication using microwave heating", Proc. SPIE 7781, Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications IV, 778113 (18 August 2010); https://doi.org/10.1117/12.862145

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