Comparison of Grain Structure, Electrical and Magnetic Properties of BaTiO3 and Ni0.5Zn0.5Fe2O4 Ceramics Sintered Using Microwave and Conventional Techniques

Technologies

Santiranjan Shannigrahi¹  Chee Kiang Ivan Tan² 

[1] Institute of Materials Research and Engineering, Agency for Science Technology and Research (A*STAR), 3 Research Link, Singapore 117602, Singapore; E-Mail

关键词: microwave sintering;    ferrites;    dielectric;    ferroelectric;    magnetic;    XRD;   

DOI  :  10.3390/technologies3010047

来源: mdpi

【 摘 要 】

BaTiO₃ (BT) and Ni_0.5Zn_0.5Fe₂O₄ (NZF) ceramic disc specimens were prepared using commercial grade powders sintering by conventional (CV) and microwave (MW) sintering techniques. In both the sintering techniques the set sintering temperatures were in the range of 850 °C to 1000 °C and time from 0.5 to 2 h. Structure, microstructure, dielectric, ferroelectric and magnetic properties have been compared for the as sintered BT and NZF ceramic specimens. Comparatively large grain size and higher density observed for the samples sintered at same temperature and shorter holding time using microwave. Magnetic properties of the NZF samples sintered using MW at a temperature of 950 °C show a higher saturation magnetization (M_s) value of 88 emu/g.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.