Lead-free high performance Bi(Zn0.5Ti0.5)O3-modified BiFeO3-BaTiO3 piezoceramics |
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| Authors: | Gyung Hyun Ryu Ali Hussain Myang Hwan Lee Rizwan Ahmed Malik Tae-Kwon Song Won-Jeong Kim Myong-Ho Kim |
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| Affiliation: | 1. School of Advanced Materials Engineering, Changwon National University, Gyeongnam 641-773, Republic of Korea;2. Department of Materials Science & Engineering, North Carolina State University, Raleigh, NC 27607, USA;3. Department of Materials Science & Engineering, Institute of Space Technology, Islamabad 44000, Pakistan;4. Department of Physics, Changwon National University, Gyeongnam 641-773, Republic of Korea |
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| Abstract: | In this article, structure, dielectric, ferroelectric and piezoelectric properties of Bi rich Bi1.05(Zn0.5Ti0.5)O3-modified BiFeO3-BaTiO3 (BF-BT-xBZT) ceramics were investigated experimentally. Crystal structure, phase purity and microstructure were examined through X-ray diffractometry and scanning electron microscopy, respectively. The crystallographic results show the formation of single-phase solid solutions for all compositions except x?=?10?mol%. The BF-BT modification through BZT instigates variation in grain size, enhancement in Curie temperature (TC) and field induced polarization and strain response. Large field induced strain of ～0.24% at low driving field along with a small hysteresis of ～38% was observed for 2?mol% BZT modified BF-BT ceramics. These investigated results signpost the potentiality of BF-BT-xBZT ceramics in high temperature piezoelectric device applications. |
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| Keywords: | Lead-free Piezoelectric Field-induced strain |
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