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http://dx.doi.org/10.4313/JKEM.2008.21.5.453

Piezoelectric Properties and Sintering of PCW-PNN-PZT+0.5 wt%MnO2 Ceramics  

Shin, Hyea-Kyoung (인천대학교 전기공학과)
Chung, Bo-Ram (인천대학교 전기공학과)
Ju, Jin-Soo (인천대학교 전기공학과)
Bae, Seon-Gi (인천대학교 전기공학과)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.21, no.5, 2008 , pp. 453-457 More about this Journal
Abstract
In this thesis, piezoelectric properties and sintering properties of PCW-PNN-PZT+0.5 wt%$MnO_2$ ceramics adding $B_2O_3$ after creating the specimens with a general method. The lattice constant from the analysis of crystal structure showed that the crystal structure of ceramic features both rhombohdral and tetragonal structures and that the pychlore structure was decreased with the increase of the sintering temperature. The electromechanical coupling coefficient showed its maximum of 31 % in the sintered specimens at $1050^{\circ}C$, and its minimum of 20 % in the sintered specimens at $1150^{\circ}C$. The mechanical quality coefficient marked the maximum of 139 at the sintering temperature of $1150^{\circ}C$.
Keywords
Sintering temperature; Electromechanical coupling coefficient; Mechanical quality coefficient;
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