Piezoelectric Properties and Sintering of PCW-PNN-PZT+0.5 wt%MnO 2 Ceramics

2008

In this thesis, piezoelectric properties and sintering properties of PCW-PNN-PZT+0.5 wt% ceramics adding 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 , and its minimum of 20 % in the sintered specimens at . The mechanical quality coefficient marked the maximum of 139 at the sintering temperature of .

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