C. W. Ann, Haijoon Lee, S. Kang, Jae Young Lee, I. W. Kim, Jae‐Shin Lee
{"title":"High Strain and Piezoelectric Characteristics of Textured Bi0.5(Na0.85K0.15)0.5TiO3 Ceramics","authors":"C. W. Ann, Haijoon Lee, S. Kang, Jae Young Lee, I. W. Kim, Jae‐Shin Lee","doi":"10.1109/ISAF.2006.4387857","DOIUrl":null,"url":null,"abstract":"The anisotropy of polarization and strain behavior in textured Bi<sub>0.5</sub>(Na<sub>0.85</sub>K<sub>0.15</sub>)<sub>0.5</sub>TiO<sub>3</sub> ceramics are investigated for lead-free piezoelectric ceramics actuators. The textured Bi<sub>0.5</sub>(Na<sub>0.85</sub>K<sub>0.15</sub>)<sub>0.5</sub>TiO<sub>3</sub> ceramics are fabricated by reactive templated grain growth (RTGG) using plate-like Bi<sub>4</sub>Ti<sub>3</sub>O<sub>12</sub> particles. RTGG[//] (sliced parallel to the casting direction) and RTGG[square] (sliced perpendicularly to the casting direction) specimens show preferred orientation to <001><sub>pc</sub> and <110><sub>pc</sub>, respectively. RTGG[//] specimen has relatively high piezoelectric coefficient of (d<sub>33</sub>) ~335 pm/V and electric field induced strain levels of 0.067% at 20 kV/cm. This values were 86% higher than those of RTGG[ square] specimen. <001><sub>pc</sub> textured polycrystalline BNKT ceramics, prepared by RTGG, are a strong candidate for lead-free piezoelectric materials of actuators.","PeriodicalId":441219,"journal":{"name":"2006 15th ieee international symposium on the applications of ferroelectrics","volume":"9 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2006-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2006 15th ieee international symposium on the applications of ferroelectrics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ISAF.2006.4387857","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 1
Abstract
The anisotropy of polarization and strain behavior in textured Bi0.5(Na0.85K0.15)0.5TiO3 ceramics are investigated for lead-free piezoelectric ceramics actuators. The textured Bi0.5(Na0.85K0.15)0.5TiO3 ceramics are fabricated by reactive templated grain growth (RTGG) using plate-like Bi4Ti3O12 particles. RTGG[//] (sliced parallel to the casting direction) and RTGG[square] (sliced perpendicularly to the casting direction) specimens show preferred orientation to <001>pc and <110>pc, respectively. RTGG[//] specimen has relatively high piezoelectric coefficient of (d33) ~335 pm/V and electric field induced strain levels of 0.067% at 20 kV/cm. This values were 86% higher than those of RTGG[ square] specimen. <001>pc textured polycrystalline BNKT ceramics, prepared by RTGG, are a strong candidate for lead-free piezoelectric materials of actuators.