Mechanical and electrical properties of La<sup>3+</sup> modified BNKZT ceramics

© 2019 Trans Tech Publications, Switzerland. In this work, Bi0.5-xLaxNa0.4K0.1Zr0.02Ti0.98O3 (where x = 0, 0.01, and 0.03 mol%) ceramics were prepared by conventional solid-state sintering method, sintered in air at l125°C for 2 h. The mechanical and electrical properties of the sintered ceramic wit...

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Main Authors: Pichitchai Butnoi, Supalak Manotham, Pharatee Jaita, Tawee Tunkasiri
Format: Book Series
Published: 2019
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http://cmuir.cmu.ac.th/jspui/handle/6653943832/65603
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Institution: Chiang Mai University
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spelling th-cmuir.6653943832-656032019-08-05T04:39:01Z Mechanical and electrical properties of La<sup>3+</sup> modified BNKZT ceramics Pichitchai Butnoi Supalak Manotham Pharatee Jaita Tawee Tunkasiri Engineering Materials Science © 2019 Trans Tech Publications, Switzerland. In this work, Bi0.5-xLaxNa0.4K0.1Zr0.02Ti0.98O3 (where x = 0, 0.01, and 0.03 mol%) ceramics were prepared by conventional solid-state sintering method, sintered in air at l125°C for 2 h. The mechanical and electrical properties of the sintered ceramic with different La-doping were investigated. The crystalline structure of all ceramics was assessed by X-ray diffraction (XRD) method. Other physical and mechanical properties, i.e. density, porosity, shrinkage, Vickers (HV) and Knoop hardness (HK), and electrical properties were determined. XRD patterns for all samples exhibited a pure perovskite, where coexistence between tetragonal and rhombohedral phases was observed for some composition. The maximum dielectric constant at room temperature was obtained for x = 0.03 ceramic. In addition, the piezoelectric properties were improved and showed the highest d33, Smax and d∗33 values of 189 pC/N, 0.28% and 560 pm/V, respectively for x = 0.01 composition. Furthermore, the optimum values of hardness were observed at this composition. 2019-08-05T04:37:04Z 2019-08-05T04:37:04Z 2019-01-01 Book Series 10139826 2-s2.0-85067690609 10.4028/www.scientific.net/KEM.798.188 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85067690609&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/65603
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
topic Engineering
Materials Science
spellingShingle Engineering
Materials Science
Pichitchai Butnoi
Supalak Manotham
Pharatee Jaita
Tawee Tunkasiri
Mechanical and electrical properties of La<sup>3+</sup> modified BNKZT ceramics
description © 2019 Trans Tech Publications, Switzerland. In this work, Bi0.5-xLaxNa0.4K0.1Zr0.02Ti0.98O3 (where x = 0, 0.01, and 0.03 mol%) ceramics were prepared by conventional solid-state sintering method, sintered in air at l125°C for 2 h. The mechanical and electrical properties of the sintered ceramic with different La-doping were investigated. The crystalline structure of all ceramics was assessed by X-ray diffraction (XRD) method. Other physical and mechanical properties, i.e. density, porosity, shrinkage, Vickers (HV) and Knoop hardness (HK), and electrical properties were determined. XRD patterns for all samples exhibited a pure perovskite, where coexistence between tetragonal and rhombohedral phases was observed for some composition. The maximum dielectric constant at room temperature was obtained for x = 0.03 ceramic. In addition, the piezoelectric properties were improved and showed the highest d33, Smax and d∗33 values of 189 pC/N, 0.28% and 560 pm/V, respectively for x = 0.01 composition. Furthermore, the optimum values of hardness were observed at this composition.
format Book Series
author Pichitchai Butnoi
Supalak Manotham
Pharatee Jaita
Tawee Tunkasiri
author_facet Pichitchai Butnoi
Supalak Manotham
Pharatee Jaita
Tawee Tunkasiri
author_sort Pichitchai Butnoi
title Mechanical and electrical properties of La<sup>3+</sup> modified BNKZT ceramics
title_short Mechanical and electrical properties of La<sup>3+</sup> modified BNKZT ceramics
title_full Mechanical and electrical properties of La<sup>3+</sup> modified BNKZT ceramics
title_fullStr Mechanical and electrical properties of La<sup>3+</sup> modified BNKZT ceramics
title_full_unstemmed Mechanical and electrical properties of La<sup>3+</sup> modified BNKZT ceramics
title_sort mechanical and electrical properties of la<sup>3+</sup> modified bnkzt ceramics
publishDate 2019
url https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85067690609&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/65603
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