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Influence of carbon black and carbon nanotube on mechanical and piezoelectric properties of γ–C2S–PZT composite.
- Source :
-
Ceramics International . Aug2022, Vol. 48 Issue 15, p22370-22377. 8p. - Publication Year :
- 2022
-
Abstract
- This paper investigated the influence of carbon black (CB) and carbon nanotube (CNT), used at 0–1%, by volume, on mechanical performance and piezoelectricity of 0–3 γ–C 2 S–based piezoelectric composite. The γ–C 2 S–based piezoelectric composite was prepared through carbonation of the proportioned mixture. Parameters d 33 , g 33 , and ε r were characterized with the CB and CNT additions. The influence of PZT size and volume on these parameters were also studied. Tested results showed that a greater PZT average size and volume significantly improved the d 33 , g 33 , and ε r values of γ–C 2 S–based piezoelectric composite given the increased contact among PZT particles. The use of 1.0% CB can lead to 50% and 265% enhancements in d 33 and ε r , respectively. Such improvements in d 33 and ε r values were 50% and 190%, respectively, with the addition of 0.3% CNT. This is attributed to the enhanced conductivity of γ–C 2 S–based piezoelectric composite, which can promote the poling of PZT particles. Moreover, the compressive strength of γ–C 2 S–based piezoelectric composite were improved by 12 and 3 MPa with the use of CB and CNT, respectively. In addition, the γ–C 2 S–based piezoelectric composite had 2–6 folds greater d 33 and ε r values given the similar CB and CNT contents relative to those of cementitious piezoelectric composite. Therefore, the use of CB and CNT can advance the development of γ–C 2 S–based piezoelectric composite with enhanced mechanical performance and piezoelectricity. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 02728842
- Volume :
- 48
- Issue :
- 15
- Database :
- Academic Search Index
- Journal :
- Ceramics International
- Publication Type :
- Academic Journal
- Accession number :
- 157503372
- Full Text :
- https://doi.org/10.1016/j.ceramint.2022.04.243