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Title: The effect of ferroelastic coupling in controlling the abnormal aging behavior in lead magnesium niobate-lead titanate relaxor ferroelectrics

Abstract

The abnormal aging behavior, i.e., severe aging in the electric field induced piezoelectric coefficient while very weak dielectric aging, observed in the relaxor ferroelectric lead magnesium niobate-lead titanate (PMN-PT) ceramics under a dc electric bias field, can be significantly reduced by hot isostatic pressing (HIP) treatment on presintered samples. The aging can also be reduced by doping suitable amounts of either La (donor) or Mn (acceptor). We suggest that the reduction in the aging is due to the introduction of additional random fields into the material which reduces the probability of the growth of micropolar regions into metastable and/or stable macropolar domains. The abnormal aging behavior and the effectiveness of HIP in reducing it indicate the importance of the elastic energy in controlling the aging and relaxor behavior in PMN-PT relaxor ferroelectrics. {copyright} {ital 1997 Materials Research Society.}

Authors:
; ; ;  [1]
  1. Materials Research Laboratory, The Pennsylvania State University, University Park, Pennsylvania 16802 (United States)
Publication Date:
OSTI Identifier:
528004
Resource Type:
Journal Article
Journal Name:
Journal of Materials Research
Additional Journal Information:
Journal Volume: 12; Journal Issue: 7; Other Information: PBD: Jul 1997
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; NIOBIUM OXIDES; DIELECTRIC PROPERTIES; CERAMICS; FERROELECTRIC MATERIALS; LEAD OXIDES; MAGNESIUM OXIDES; TITANIUM OXIDES; AGING; LANTHANUM ADDITIONS; MANGANESE ADDITIONS; DOMAIN STRUCTURE; PRESSING

Citation Formats

Zhang, Q M, Zhao, J, Shrout, T R, and Cross, L E. The effect of ferroelastic coupling in controlling the abnormal aging behavior in lead magnesium niobate-lead titanate relaxor ferroelectrics. United States: N. p., 1997. Web. doi:10.1557/JMR.1997.0245.
Zhang, Q M, Zhao, J, Shrout, T R, & Cross, L E. The effect of ferroelastic coupling in controlling the abnormal aging behavior in lead magnesium niobate-lead titanate relaxor ferroelectrics. United States. doi:10.1557/JMR.1997.0245.
Zhang, Q M, Zhao, J, Shrout, T R, and Cross, L E. Tue . "The effect of ferroelastic coupling in controlling the abnormal aging behavior in lead magnesium niobate-lead titanate relaxor ferroelectrics". United States. doi:10.1557/JMR.1997.0245.
@article{osti_528004,
title = {The effect of ferroelastic coupling in controlling the abnormal aging behavior in lead magnesium niobate-lead titanate relaxor ferroelectrics},
author = {Zhang, Q M and Zhao, J and Shrout, T R and Cross, L E},
abstractNote = {The abnormal aging behavior, i.e., severe aging in the electric field induced piezoelectric coefficient while very weak dielectric aging, observed in the relaxor ferroelectric lead magnesium niobate-lead titanate (PMN-PT) ceramics under a dc electric bias field, can be significantly reduced by hot isostatic pressing (HIP) treatment on presintered samples. The aging can also be reduced by doping suitable amounts of either La (donor) or Mn (acceptor). We suggest that the reduction in the aging is due to the introduction of additional random fields into the material which reduces the probability of the growth of micropolar regions into metastable and/or stable macropolar domains. The abnormal aging behavior and the effectiveness of HIP in reducing it indicate the importance of the elastic energy in controlling the aging and relaxor behavior in PMN-PT relaxor ferroelectrics. {copyright} {ital 1997 Materials Research Society.}},
doi = {10.1557/JMR.1997.0245},
journal = {Journal of Materials Research},
number = 7,
volume = 12,
place = {United States},
year = {1997},
month = {7}
}