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Article: Findings from Polytechnic University advance knowledge in ceramics.
- Article from:
- Journal of Technology
- Article date:
- July 7, 2009
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"Pb(Mg1/3Nb2/3)O-3-Pb(Ni1/3Nb2/3)O-3-Pb(Zr1/2Ti1/2)O-3 (designated as PMNT) piezoelectric ceramics codoping with Zn2+/Li+ were prepared and the effects of ZnO/Li2O (Z/L) additive on microstructure, piezoelectric and dielectric properties were investigated. The results show that the pure perovskite phase is formed and the phase structure changes from tetragonal to rhombohedral with different Z/L weight ratios," scientists in Xian, People's Republic of China report.
"The Curie temperature T-c, dielectric constant epsilon, electromechanical coupling factor k(p) and piezoelectric constant d(33) decrease, whereas mechanical quality factor Q. increases with Z/L weight ...