Effect of carbon nanotubes on properties of cement-sand-based piezoelectric composites

Sunjung Kim; Ping Zhao; Emmanuel U Enemuoh

doi:10.1117/12.2083854

Effect of carbon nanotubes on properties of cement-sand-based piezoelectric composites

Sunjung Kim, Ping Zhao, Emmanuel U Enemuoh

Mechanical & Industrial Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

2 Scopus citations

Abstract

carbon nanotubes (cnts) were dispersed in a cement-sand-based piezoelectric smart composite as conductive fillers to improve its poling efficiency, leading to a desirable piezoelectric effect. By introducing a small amount of CNTs, continuous electric networks between Lead Zirconate Titanate (PZT) particles were created, thus making the composite poling easier. Specimens were prepared by mixing PZT powders, Portland cement and sand with CNTs, followed by pressing it with a load frame system. The effect of quantity of CNTs ranging from 0 to 1.0 volume percent on properties of the composite, including its piezoelectric coefficient, dielectric constant and loss, and sensing effects, were characterized. It was found that the addition of CNTs facilitated effective poling at room temperature and improved the piezoelectric and dielectric properties of the composite. The composite modified by CNTs achieved optimal properties when the CNTs content was 0.7 vol.%.

Original language	English (US)
Title of host publication	Behavior and Mechanics of Multifunctional Materials and Composites 2015
Editors	Nakhiah C. Goulbourne
Publisher	SPIE
ISBN (Electronic)	9781628415353
DOIs	https://doi.org/10.1117/12.2083854
State	Published - 2015
Event	Behavior and Mechanics of Multifunctional Materials and Composites 2015 - San Diego, United States Duration: Mar 9 2015 → Mar 11 2015

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	9432
ISSN (Print)	0277-786X
ISSN (Electronic)	1996-756X

Other

Other	Behavior and Mechanics of Multifunctional Materials and Composites 2015
Country/Territory	United States
City	San Diego
Period	3/9/15 → 3/11/15

Bibliographical note

Publisher Copyright:
© COPYRIGHT SPIE. Downloading of the abstract is permitted for personal use only.

Keywords

Carbon Nanotubes
Cement
Lead Zirconate Titanate
Piezoelectric Smart Composite

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Kim, S., Zhao, P., & Enemuoh, E. U. (2015). Effect of carbon nanotubes on properties of cement-sand-based piezoelectric composites. In N. C. Goulbourne (Ed.), Behavior and Mechanics of Multifunctional Materials and Composites 2015 Article 943208 (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 9432). SPIE. https://doi.org/10.1117/12.2083854

Effect of carbon nanotubes on properties of cement-sand-based piezoelectric composites. / Kim, Sunjung; Zhao, Ping ; Enemuoh, Emmanuel U.
Behavior and Mechanics of Multifunctional Materials and Composites 2015. ed. / Nakhiah C. Goulbourne. SPIE, 2015. 943208 (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 9432).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Kim, S, Zhao, P & Enemuoh, EU 2015, Effect of carbon nanotubes on properties of cement-sand-based piezoelectric composites. in NC Goulbourne (ed.), Behavior and Mechanics of Multifunctional Materials and Composites 2015., 943208, Proceedings of SPIE - The International Society for Optical Engineering, vol. 9432, SPIE, Behavior and Mechanics of Multifunctional Materials and Composites 2015, San Diego, United States, 3/9/15. https://doi.org/10.1117/12.2083854

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abstract = "carbon nanotubes (cnts) were dispersed in a cement-sand-based piezoelectric smart composite as conductive fillers to improve its poling efficiency, leading to a desirable piezoelectric effect. By introducing a small amount of CNTs, continuous electric networks between Lead Zirconate Titanate (PZT) particles were created, thus making the composite poling easier. Specimens were prepared by mixing PZT powders, Portland cement and sand with CNTs, followed by pressing it with a load frame system. The effect of quantity of CNTs ranging from 0 to 1.0 volume percent on properties of the composite, including its piezoelectric coefficient, dielectric constant and loss, and sensing effects, were characterized. It was found that the addition of CNTs facilitated effective poling at room temperature and improved the piezoelectric and dielectric properties of the composite. The composite modified by CNTs achieved optimal properties when the CNTs content was 0.7 vol.%.",

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AB - carbon nanotubes (cnts) were dispersed in a cement-sand-based piezoelectric smart composite as conductive fillers to improve its poling efficiency, leading to a desirable piezoelectric effect. By introducing a small amount of CNTs, continuous electric networks between Lead Zirconate Titanate (PZT) particles were created, thus making the composite poling easier. Specimens were prepared by mixing PZT powders, Portland cement and sand with CNTs, followed by pressing it with a load frame system. The effect of quantity of CNTs ranging from 0 to 1.0 volume percent on properties of the composite, including its piezoelectric coefficient, dielectric constant and loss, and sensing effects, were characterized. It was found that the addition of CNTs facilitated effective poling at room temperature and improved the piezoelectric and dielectric properties of the composite. The composite modified by CNTs achieved optimal properties when the CNTs content was 0.7 vol.%.

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Effect of carbon nanotubes on properties of cement-sand-based piezoelectric composites

Abstract

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