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MnO2가 첨가된 PSN-PNN-PT 세라믹스의 유전 및 압전특성

Dielectric and Piezoelectric Properties of MnO2-doped PSN-PNN-PT Ceramics

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Abstract

The dielectric and piezoelectric properties of 0.36pb(Sc1/2Nb1/2)O3-0.25Pb(Ni1/3Nb2/3)O3-0.39PbTiO3 (hereafter PSNNT) at the morphotropic phase boundary (MPB) composition were investigated with 0-2.5 mol% MnO2 doping. Bulk density, dielectric loss and tetragonality of crystal structure were all improved with increasing MnO2 additive content. With increasing MnO2 additive content, the electromechanical coupling factor and quality factor were also increased Electromechanical coupling Kp and quality Qm at 2.0 mol% MnO2 doping with were showed highest values of 55.6% and 252, respectively.

참고문헌 (6)

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  2. "processing and Characterization of High Qm Ferroelectric Ceramics", 19, pp.1237~1241 (1999)
  3. "Phase Stability, Dielectric and Piezoelectric roperties of the Pb(Sc1", 2Nb1, 3Nb1, pp.3)O3-PbTiO3 Ternary Ceramic Materials[DOI]
  4. "Dielectric and Piezoelectric Properties of Pb(Sc1", 2 Nb1, 3Nb1, pp.3)O3-PbTiO3 Ternary Ceramic Materials[DOI]
  5. "Linear Intercept Techique for Measuring Grain Size in Two Phase Polycrystalline Ceramics", soc.(2), pp.109 1972~
  6. "Electrical Measurement Method for Piesoelectric Veramic Elements EMAS" (1993)

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