Effects of donor and acceptor doping on dielectric and ferroelectric properties of Ba<inf>0.7</inf>Ca<inf>0.3</inf>TiO<inf>3</inf>lead-free ceramics
© 2016 Elsevier B.V. (Ba 0.7 Ca 0.3 )TiO 3 , (Ba 0.7 Ca 0.3 ) 0.995 Ti 0.99 Nb 0.01 O 3 and (Ba 0.7 Ca 0.3 )Ti 0.99 Mg 0.01 O 2.99 ceramics were prepared employing a solid state sintering method. The presence of Ti 4+ and structural changes were revealed by X-ray diffraction patterns and X-ray absor...
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th-cmuir.6653943832-411122017-09-28T04:15:36Z Effects of donor and acceptor doping on dielectric and ferroelectric properties of Ba<inf>0.7</inf>Ca<inf>0.3</inf>TiO<inf>3</inf>lead-free ceramics Jaiban P. Watcharapasorn A. Yimnirun R. Guo R. Bhalla A. © 2016 Elsevier B.V. (Ba 0.7 Ca 0.3 )TiO 3 , (Ba 0.7 Ca 0.3 ) 0.995 Ti 0.99 Nb 0.01 O 3 and (Ba 0.7 Ca 0.3 )Ti 0.99 Mg 0.01 O 2.99 ceramics were prepared employing a solid state sintering method. The presence of Ti 4+ and structural changes were revealed by X-ray diffraction patterns and X-ray absorption spectra. Upon substitution of Nb 5+ and Mg 2+ ions, a decrease of the ferroelectric transition temperature near room temperature and relaxor-like features of the dielectric properties were observed in correlation with decreased tetragonality. The change in phase transition temperature affected significantly piezoelectricity and ferroelectricity of doped ceramics. The doping could enhance the dielectric properties near room temperature of BCT ceramic. The results here suggest that dielectric, piezoelectric and ferroelectric properties of BCT may be largely tunable by Nb and Mg dopants, and BCT could be an alternative material for ferroelectric devices. 2017-09-28T04:15:35Z 2017-09-28T04:15:35Z 2017-01-01 Journal 09258388 2-s2.0-85014027650 10.1016/j.jallcom.2016.10.274 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85014027650&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/41112 |
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© 2016 Elsevier B.V. (Ba 0.7 Ca 0.3 )TiO 3 , (Ba 0.7 Ca 0.3 ) 0.995 Ti 0.99 Nb 0.01 O 3 and (Ba 0.7 Ca 0.3 )Ti 0.99 Mg 0.01 O 2.99 ceramics were prepared employing a solid state sintering method. The presence of Ti 4+ and structural changes were revealed by X-ray diffraction patterns and X-ray absorption spectra. Upon substitution of Nb 5+ and Mg 2+ ions, a decrease of the ferroelectric transition temperature near room temperature and relaxor-like features of the dielectric properties were observed in correlation with decreased tetragonality. The change in phase transition temperature affected significantly piezoelectricity and ferroelectricity of doped ceramics. The doping could enhance the dielectric properties near room temperature of BCT ceramic. The results here suggest that dielectric, piezoelectric and ferroelectric properties of BCT may be largely tunable by Nb and Mg dopants, and BCT could be an alternative material for ferroelectric devices. |
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Jaiban P. Watcharapasorn A. Yimnirun R. Guo R. Bhalla A. |
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Jaiban P. Watcharapasorn A. Yimnirun R. Guo R. Bhalla A. Effects of donor and acceptor doping on dielectric and ferroelectric properties of Ba<inf>0.7</inf>Ca<inf>0.3</inf>TiO<inf>3</inf>lead-free ceramics |
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Jaiban P. Watcharapasorn A. Yimnirun R. Guo R. Bhalla A. |
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Jaiban P. |
title |
Effects of donor and acceptor doping on dielectric and ferroelectric properties of Ba<inf>0.7</inf>Ca<inf>0.3</inf>TiO<inf>3</inf>lead-free ceramics |
title_short |
Effects of donor and acceptor doping on dielectric and ferroelectric properties of Ba<inf>0.7</inf>Ca<inf>0.3</inf>TiO<inf>3</inf>lead-free ceramics |
title_full |
Effects of donor and acceptor doping on dielectric and ferroelectric properties of Ba<inf>0.7</inf>Ca<inf>0.3</inf>TiO<inf>3</inf>lead-free ceramics |
title_fullStr |
Effects of donor and acceptor doping on dielectric and ferroelectric properties of Ba<inf>0.7</inf>Ca<inf>0.3</inf>TiO<inf>3</inf>lead-free ceramics |
title_full_unstemmed |
Effects of donor and acceptor doping on dielectric and ferroelectric properties of Ba<inf>0.7</inf>Ca<inf>0.3</inf>TiO<inf>3</inf>lead-free ceramics |
title_sort |
effects of donor and acceptor doping on dielectric and ferroelectric properties of ba<inf>0.7</inf>ca<inf>0.3</inf>tio<inf>3</inf>lead-free ceramics |
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2017 |
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https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85014027650&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/41112 |
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