Abstract
In this study, (Na0.525K0.443Li0.037)(Nb0.883Sb0.08Ta0.037)O3 + 0.10 wt%Bi2O3 + 0.35 wt%B2O3 ceramics were prepared by conventional soild-state sintering process. The specimens were sintered at temperature range from 1,060℃ to 1,100℃. XRD (X-ray diffractron), SEM (scanning electron microscope) were used to analyze the crystal structure and microstructural sproperties of specimens. And also, TO-T, TC were observed by the mesurement of temperature dependence of dielectric constant. Excellect physical properties of the piezoelectric constant d33= 170 pC/N, electromechanical coupling factor kp= 0.312, Tc= 315℃ were obtained, respectively, from the specimen sintered at 1,080℃.
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