Influence of Curing Age on Microstructure in Barium Titanate – Portland Cement Composites

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The objective of this study was to find out the influence of curing age on microstructure in barium titanate – Portland cement composites. Barium titanate, BaTiO3 (BT) particles was mixed with Portland Cement (PC) and BT content of 50% by volume to produce the composites. All composites were cured in chamber of 60oC and 98% relative humidity for 1, 2, 3, and 7 days. Thereafter, scanning electron microscope (SEM) was used to examine the interfacial zone between cement and BT ceramics. SEM observation indicated that the BT-PC composite cured for 7 days clearly showed calcium silicate hydrate gel (an essential hydration product of Portland cement) surrounding the BT particles and has lower porosity. In BT-PC composite cured for 1 day, the gel can be seen but of less quantity and has higher porosity which clearly affected the interfacial zone.

Info:

Periodical:

Edited by:

Takashi Goto, Yi-Bing Cheng and Takashi Akatsu

Pages:

222-225

DOI:

10.4028/www.scientific.net/KEM.484.222

Citation:

R. Rianyoi et al., "Influence of Curing Age on Microstructure in Barium Titanate – Portland Cement Composites", Key Engineering Materials, Vol. 484, pp. 222-225, 2011

Online since:

July 2011

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Price:

$35.00

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