Effect of Al<inf>2</inf>O<inf>3</inf> addition on dielectric, piezoelectric and ferroelectric properties of O.2Pb(Zn<inf>1/3</inf>Nb<inf>2/3</inf>)O <inf>3</inf>-0.8Pb(Zr<inf>1/2</inf>Ti<inf>1/2</inf>)O<inf>3</inf> ceramics

The structure and electrical properties of Al2O 3-doped 0.2Pb(Zn1/3Nb2/3)O3-0. 8Pb(Zr1/2Ti1/2)O3 ceramic, which is the morphotropic phase boundary composition of the PZN-PZT system, were investigated. The addition of Al2O3 content transformed the crystal structure from coexisting with rhombohedral t...

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Bibliographic Details
Main Authors: A. Ngamjarurojana, S. Ananta, R. Yimnirun
Format: Book Series
Published: 2018
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Online Access:https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=62949202705&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/60342
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Institution: Chiang Mai University
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Summary:The structure and electrical properties of Al2O 3-doped 0.2Pb(Zn1/3Nb2/3)O3-0. 8Pb(Zr1/2Ti1/2)O3 ceramic, which is the morphotropic phase boundary composition of the PZN-PZT system, were investigated. The addition of Al2O3 content transformed the crystal structure from coexisting with rhombohedral to purely tetragonal structure. Furthermore, addition of Al2O3 decreased εr, d33 and kp, but increased Curie temperature and enhanced the mechanical quality factor. Finally, the P-E and s-E loops demonstrated decreased Pr, Ec and strain level with addition of Al2O3. © 2008 Trans Tech Publications, Switzerland.