Title :
The Investigation on the Heat-generation Phenomenon of BNT-BT Ceramics
Author :
Lee, Su-Ho ; Sug, Jeong-Young ; Sa-Gong, Geon ; Song, Tae-Kwon ; Kim, Myoung-Ho
Author_Institution :
Kyungpook Nat. Univ., Daegu
fDate :
July 30 2006-Aug. 3 2006
Abstract :
To make BNT-BT ceramics, in this study, we put amount of small BaTiO3 (BT) which has the characteristics of the ferroelectric and the tetragonal structure at the normal temperature in BNT. The temperature goes up very fast to the maximum, 100degC for first 3 minutes and then it is saturated. We can recognize from the P-E curve that much more generation of heat is accompanied the impressed electric field increases. This is natural because as the thermal loss is proportioned to the square of electric field in case of regular resistance if the electric field goes up. Therefore, in this study, we show the heat-generation phenomenon and temperature stabilization of the BNT-BT ceramic which can be used as a reference to develope better BNT-BT ceramic.
Keywords :
barium compounds; electric fields; electric resistance; ferroelectric ceramics; manufacturing processes; phase transformations; titanium; BNT-BT ceramics; BaTiO3; P-E curve; complex dielectric constant; electric field; electric resistance; ferroelectric structure; heat-generation phenomenon; phase transition temperature; temperature 100 C; temperature stabilization; tetragonal structure; thermal loss; Ceramics; Dielectric constant; Dielectric loss measurement; Dielectric measurements; Electric variables measurement; Environmentally friendly manufacturing techniques; Ferroelectric materials; Loss measurement; Pollution measurement; Temperature; Complex Dielectric Constant; Heat-generation Phenomenon; Phase Transition Temperature;
Conference_Titel :
Applications of ferroelectrics, 2006. isaf '06. 15th ieee international symposium on the
Conference_Location :
Sunset Beach, NC
Print_ISBN :
978-1-4244-1331-7
Electronic_ISBN :
1099-4734
DOI :
10.1109/ISAF.2006.4387854
