Dielectric properties of liquid phase sintered 0.98BaTiO 3-0.02Ba(Mg1/3Nb2/3)O3 ceramic

• Main Authors: Munpakdee A., Tontrakoon J., Siriwitayakorn K., Tunkasiri T.
• Format: Article
• Language: English
• Published: 2014
• Online Access: http://www.scopus.com/inward/record.url?eid=2-s2.0-25444509832&partnerID=40&md5=778a6e5c6235b28f5fb7d38390a4418d; http://cmuir.cmu.ac.th/handle/6653943832/4946
• Institution: Chiang Mai University

The sintering temperature of 0.98BaTiO3-0.02Ba(Mg 1/3Nb2/3)O3 (BT)(BMN) ceramics was lowered from around 1300 to 900 °C through liquid phase sintering to obtain various microstructural and dielectric properties. The linear shrinkage and densities were recorded and their microstructures were investigated through X-ray diffractometry (XRD) and scanning electron microscopy (SEM). Evolution of the dielectric constant against temperature was measured at various ambient temperatures ranging from room temperature to around 200 °C. The transformation from ferroelectric to paraelectric phase occurred when flux concentration was double the amount used to cause the ceramic ferroelectric state.