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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Influence of PZT insertion on Portland cement curing process and piezoelectric properties of 0-3 cement-based composites by impedance spectroscopy

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Author(s):
Santos, J. A. [1] ; Sanches, A. O. [1] ; Akasaki, J. L. [1] ; Tashima, M. M. [1] ; Longo, E. [2] ; Malmonge, J. A. [1]
Total Authors: 6
Affiliation:
[1] Univ Estadual Paulista, Fac Engn, UNESP, Campus Ilha Solteira Av Brasil 56, BR-15385000 Ilha Solteira, SP - Brazil
[2] Univ Fed Sao Carlos UFSCar, LIEC, Rodovia Washington Luis S-N, BR-13565905 Sao Carlos, SP - Brazil
Total Affiliations: 2
Document type: Journal article
Source: CONSTRUCTION AND BUILDING MATERIALS; v. 238, MAR 30 2020.
Web of Science Citations: 0
Abstract

0-3 Cement-based piezoelectric composites were produced. It was verified that not only the piezoelectric properties of the composites, but also the influence of piezoelectric phase in the cement paste curing process. The results showed that the final piezoelectric and dielectric properties of the composites depend mainly on the interfacial microstructure between the matrix and the piezoelectric insertion. DC conductivity and impedance spectroscopy measurements showed a high sensitivity to the identification of retard hydration process or phase transformations. Piezoelectric properties show ageing fluctuations, attributed to the cement curing process which promoted unstable dipoles at the same time that it promoted piezoelectric phase constriction. (C) 2019 Elsevier Ltd. All rights reserved. (AU)

FAPESP's process: 13/07296-2 - CDMF - Center for the Development of Functional Materials
Grantee:Elson Longo da Silva
Support Opportunities: Research Grants - Research, Innovation and Dissemination Centers - RIDC