Piezoelectric Properties of 0.2[Pb(Mg<Subscript>1/3</Subscript>Nb<Subscript>2/3</Subscript>)]-0.8[PbTiO<Subscript>3</Subscript>-PbZrO<Subscript>3</Subscript>] Ceramics Sintered at a Low Temperature with the Aid of Li<Subscript>2</Subscript>O期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Piezoelectric Properties of 0.2[Pb(Mg1/3Nb2/3)]-0.8[PbTiO3-PbZrO3] Ceramics Sintered at a Low Temperature with the Aid of Li2O

Authors:	Byung?Moon?Jin author-information" > author-information__contact u-icon-before" > mailto:bmjin@dongeui.ac.kr" title=" bmjin@dongeui.ac.kr" itemprop=" email" data-track=" click" data-track-action=" Email author" data-track-label=" " >Email author,Ill?Won?Kim,Jin?Soo?Kim,Dae?Su?Lee,Chang?Won?Ahn,Jeong?Ho?Kwon,Jae?Shin?Lee,Jae?Sung?Song,Soon?Jong?Jeong

Affiliation:	(1) Department of Physics, Dong Eui University, Busan, Korea;(2) Department of Physics, University of Ulsan, Ulsan, Korea;(3) School of Materials Science and Engineering, University of Ulsan, Ulsan, Korea;(4) Electric & Magnetic Devices Group, KERI, Korea

Abstract:	The dielectric and piezoelectric properties of 0.2Pb(Mg_1/3Nb_2/3)O₃-0.8Pb(Zr_0.475Ti_0.525)O₃ (abbr. as PMNZT) ceramics were measured. Extremely low sintering temperatures of 950^∘C using liquid-phase sintering aid of Li₂O is achieved which was very useful for multi-layered applications. X-ray study shows the splitting of rhombohedral (200) in pure PMNZT to (002) and (200) peaks in Li₂O doped samples. 10 times higher dielectric constant was achieved in Li₂O doped samples to compare to pure ones although the Curie temperature (T_c = 322^∘C) of Li₂O doped PMNZT ceramics was not changed. The value of k_p and k₃₃ increased up to 0.1 wt% of Li₂O and saturating thereafter.

Keywords:	PMN-PZT dielectric & piezoelectric low sintering temperature
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