skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Dielectric, electromechanical, optical, and mechanical properties of lanthanum-modified lead titanate ceramics

Abstract

Dielectric, electromechanical, optical, and mechanical properties of hot-pressed lanthanum-modified PbTiO/sub 3/ ceramics were measured as a function of crystal tetragonality, c/a, in a range of tetragonal-to-cubic phases. The results obtained in this study are summarized as follows: The c/a changes linearly as a function of lanthanum content. Similarly, Curie point changed linearly and remanent polarization, coercive field, and coupling factors decreased with decreasing c/a. The sample with c/a = 1,010 showed the maximum transmittance of 61% wavelengths above 600 nm. The internal stress measured using the microindentation technique decreased with decreasing c/a in the tetragonal region and was zero in the cubic region.

Authors:
; ;
Publication Date:
Research Org.:
Department of Electrical Engineering, The National Defense Academy, Yokosuka 339
OSTI Identifier:
5781245
Resource Type:
Journal Article
Journal Name:
J. Am. Ceram. Soc.; (United States)
Additional Journal Information:
Journal Volume: 66:5
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; LANTHANUM ADDITIONS; CRYSTAL STRUCTURE; CURIE POINT; DIELECTRIC PROPERTIES; ELECTROMECHANICS; MECHANICAL PROPERTIES; OPTICAL PROPERTIES; STRESSES; LEAD COMPOUNDS; TITANATES; ALLOYS; ELECTRICAL PROPERTIES; LANTHANUM ALLOYS; MECHANICS; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; RARE EARTH ADDITIONS; RARE EARTH ALLOYS; THERMODYNAMIC PROPERTIES; TITANIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; TRANSITION TEMPERATURE; 360603* - Materials- Properties

Citation Formats

Yamamoto, T, Igarashi, H, and Kiyoshi, O. Dielectric, electromechanical, optical, and mechanical properties of lanthanum-modified lead titanate ceramics. United States: N. p., 1983. Web. doi:10.1111/j.1151-2916.1983.tb10050.x.
Yamamoto, T, Igarashi, H, & Kiyoshi, O. Dielectric, electromechanical, optical, and mechanical properties of lanthanum-modified lead titanate ceramics. United States. https://doi.org/10.1111/j.1151-2916.1983.tb10050.x
Yamamoto, T, Igarashi, H, and Kiyoshi, O. 1983. "Dielectric, electromechanical, optical, and mechanical properties of lanthanum-modified lead titanate ceramics". United States. https://doi.org/10.1111/j.1151-2916.1983.tb10050.x.
@article{osti_5781245,
title = {Dielectric, electromechanical, optical, and mechanical properties of lanthanum-modified lead titanate ceramics},
author = {Yamamoto, T and Igarashi, H and Kiyoshi, O},
abstractNote = {Dielectric, electromechanical, optical, and mechanical properties of hot-pressed lanthanum-modified PbTiO/sub 3/ ceramics were measured as a function of crystal tetragonality, c/a, in a range of tetragonal-to-cubic phases. The results obtained in this study are summarized as follows: The c/a changes linearly as a function of lanthanum content. Similarly, Curie point changed linearly and remanent polarization, coercive field, and coupling factors decreased with decreasing c/a. The sample with c/a = 1,010 showed the maximum transmittance of 61% wavelengths above 600 nm. The internal stress measured using the microindentation technique decreased with decreasing c/a in the tetragonal region and was zero in the cubic region.},
doi = {10.1111/j.1151-2916.1983.tb10050.x},
url = {https://www.osti.gov/biblio/5781245}, journal = {J. Am. Ceram. Soc.; (United States)},
number = ,
volume = 66:5,
place = {United States},
year = {Sun May 01 00:00:00 EDT 1983},
month = {Sun May 01 00:00:00 EDT 1983}
}