Roles of CSH gel in the microstructure and piezoelectric properties variation of cement-based piezoelectric ceramic composite

Ding，Weijian1,2; Xu，Weiwei3; Dong，Peng2; Liu，Yuqing1; Shiotani，Tomoki1

2022

10.1016/j.matlet.2021.130952

MATERIALS LETTERS   影响因子和分区

0167-577X

1873-4979

The microstructures of cement-based piezoelectric composites with Portland cement (hydrated/fresh cement powder) as the matrix phase and lead zirconate titanate (PZT) particles as the functional phase are characterized to illustrate the effect of calcium-silicate-hydrate (CSH) on the binding behavior between two phases before and after polarization. Piezoelectric properties variation are traced to evaluate the aging effect. Results show the CSH structure change from nano-flocculent/fibrous to ellipsoid after polarization. The piezoelectric strain factor of the hydrated cement-based composite with low hydration capacity shows a decreasing trend with age due to the insufficient binding between the CSH and PZT particles, while that of the fresh cement-based composite shows an opposite tendency. This investigation also reveals the influence of polarization on the CSH gel structure, promoting the further understanding of binding behavior between the CSH and PZT for the piezoelectric performance variation during the non-polarization process.

Ceramic composites CSH gel Hydration capacity Interfaces Microstructure Piezoelectricity

SCI ; EI

英语

其他

WOS:000706438200011

20214010972949

Calcium silicate ; Crystallography ; Ferroelectric ceramics ; Hydrates ; Hydration ; Lead zirconate titanate ; Microstructure ; Piezoelectric ceramics ; Polarization ; Portland cement ; Silicate minerals

Cement:412.1 ; Minerals:482.2 ; Electricity: Basic Concepts and Phenomena:701.1 ; Dielectric Materials:708.1 ; Chemical Products Generally:804 ; Ceramics:812.1 ; Crystalline Solids:933.1 ; Materials Science:951

MATERIALS SCIENCE

2-s2.0-85116001106

Scopus

1.Department of Civil and Earth Resources Engineering,Graduate School of Engineering,Kyoto University,Kyoto,615-8540,Japan
2.Department of Mechanics and Aerospace Engineering,Southern University of Science and Technology,Shenzhen,518055,China
3.School of Traffic and Environment,Shenzhen Institute of Information Technology,Shenzhen,518172,China

Ding，Weijian,Xu，Weiwei,Dong，Peng,et al. Roles of CSH gel in the microstructure and piezoelectric properties variation of cement-based piezoelectric ceramic composite[J]. MATERIALS LETTERS,2022,306.

Ding，Weijian,Xu，Weiwei,Dong，Peng,Liu，Yuqing,&Shiotani，Tomoki.(2022).Roles of CSH gel in the microstructure and piezoelectric properties variation of cement-based piezoelectric ceramic composite.MATERIALS LETTERS,306.

Ding，Weijian,et al."Roles of CSH gel in the microstructure and piezoelectric properties variation of cement-based piezoelectric ceramic composite".MATERIALS LETTERS 306(2022).