Influence of carbon nanotubes on the performance of bismuth sodium titanate-bismuth potassium titanate-barium titanate ceramic/cement composites

© 2017 Elsevier Ltd and Techna Group S.r.l. Lead-free bismuth sodium titanate-bismuth potassium titanate-barium titanate ceramic/cement composites with carbon nanotubes (CNTs) addition were developed for smart structures application. The pores in composite and insulating nature of the cement matrix...

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Main Authors: Potong R., Rianyoi R., Ngamjarurojana A., Chaipanich A.
Format: Journal
Published: 2017
Online Access:https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85020085802&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/40220
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Institution: Chiang Mai University
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spelling th-cmuir.6653943832-402202017-09-28T04:08:23Z Influence of carbon nanotubes on the performance of bismuth sodium titanate-bismuth potassium titanate-barium titanate ceramic/cement composites Potong R. Rianyoi R. Ngamjarurojana A. Chaipanich A. © 2017 Elsevier Ltd and Techna Group S.r.l. Lead-free bismuth sodium titanate-bismuth potassium titanate-barium titanate ceramic/cement composites with carbon nanotubes (CNTs) addition were developed for smart structures application. The pores in composite and insulating nature of the cement matrix made the poling difficult and lower piezoelectric activities of composites. In this work, CNTs additions as a conducting phase at 0–2% by volume was mixed with ceramic and Portland cement by pressing and curing method. The influence and optimum of CNTs content on the microstructure, dielectric, electrical conductivity, acoustic impedance and piezoelectric properties of composites were studied. The results indicate that the CNTs are filled in the pores between the hydration products of cement as observed using scanning electron microscope. The highest piezoelectric coefficient (d 33 ) and piezoelectric voltage coefficient (g 33 ) values of composite with CNTs content was found at 1% by volume where the values are 58 pC/N and 30.20 × 10 −3 Vm/N, respectively. Therefore, CNTs content at 1% by volume was optimum for improvement of the piezoelectric properties for cement based-ceramic composites. All composites with CNTs content in the range tested were found to have good compatibility with concrete structure with matching acoustic properties. 2017-09-28T04:08:23Z 2017-09-28T04:08:23Z Journal 02728842 2-s2.0-85020085802 10.1016/j.ceramint.2017.05.225 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85020085802&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/40220
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
description © 2017 Elsevier Ltd and Techna Group S.r.l. Lead-free bismuth sodium titanate-bismuth potassium titanate-barium titanate ceramic/cement composites with carbon nanotubes (CNTs) addition were developed for smart structures application. The pores in composite and insulating nature of the cement matrix made the poling difficult and lower piezoelectric activities of composites. In this work, CNTs additions as a conducting phase at 0–2% by volume was mixed with ceramic and Portland cement by pressing and curing method. The influence and optimum of CNTs content on the microstructure, dielectric, electrical conductivity, acoustic impedance and piezoelectric properties of composites were studied. The results indicate that the CNTs are filled in the pores between the hydration products of cement as observed using scanning electron microscope. The highest piezoelectric coefficient (d 33 ) and piezoelectric voltage coefficient (g 33 ) values of composite with CNTs content was found at 1% by volume where the values are 58 pC/N and 30.20 × 10 −3 Vm/N, respectively. Therefore, CNTs content at 1% by volume was optimum for improvement of the piezoelectric properties for cement based-ceramic composites. All composites with CNTs content in the range tested were found to have good compatibility with concrete structure with matching acoustic properties.
format Journal
author Potong R.
Rianyoi R.
Ngamjarurojana A.
Chaipanich A.
spellingShingle Potong R.
Rianyoi R.
Ngamjarurojana A.
Chaipanich A.
Influence of carbon nanotubes on the performance of bismuth sodium titanate-bismuth potassium titanate-barium titanate ceramic/cement composites
author_facet Potong R.
Rianyoi R.
Ngamjarurojana A.
Chaipanich A.
author_sort Potong R.
title Influence of carbon nanotubes on the performance of bismuth sodium titanate-bismuth potassium titanate-barium titanate ceramic/cement composites
title_short Influence of carbon nanotubes on the performance of bismuth sodium titanate-bismuth potassium titanate-barium titanate ceramic/cement composites
title_full Influence of carbon nanotubes on the performance of bismuth sodium titanate-bismuth potassium titanate-barium titanate ceramic/cement composites
title_fullStr Influence of carbon nanotubes on the performance of bismuth sodium titanate-bismuth potassium titanate-barium titanate ceramic/cement composites
title_full_unstemmed Influence of carbon nanotubes on the performance of bismuth sodium titanate-bismuth potassium titanate-barium titanate ceramic/cement composites
title_sort influence of carbon nanotubes on the performance of bismuth sodium titanate-bismuth potassium titanate-barium titanate ceramic/cement composites
publishDate 2017
url https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85020085802&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/40220
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