Study on the microstructure of cement-based piezoelectric ceramic composites

被引：26

作者：

Dong, Biqin ^{[1
]}

Liu, Yuqing ^{[1
]}

Han, Ningxu ^{[1
]}

Sun, Hongfang ^{[1
]}

Xing, Feng ^{[1
]}

Qin, Daoding ^{[2
]}

机构：

[1] Shenzhen Univ, Sch Civil Engn, Guangdong Prov Key Lab Durabil Marine Civil Engn, Shenzhen 518060, Peoples R China

[2] Hong Kong Univ Sci & Technol, Dept Mech & Aerosp Engn, Hong Kong, Hong Kong, Peoples R China

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2014年 / 72卷

基金：

中国国家自然科学基金;

关键词：

Piezoelectric ceramic; Cement; Composite; Microstructure;

D O I：

10.1016/j.conbuildmat.2014.08.058

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

In this paper, a study is presented on the microstructure of a cement-based PZT (Lead Zirconate Titanate) piezoelectric ceramic composite. A mechanism is proposed for chemical bonding between piezoelectric ceramic particles and cement material in the composite. The microstructure of the composite, as well as chemical bonding at the ceramic-cement interface is investigated using XRD, IR and XPS. Experimental results indicate that Ti-O in the ceramic particles links to Si-O in the cement paste via bridging oxygen, forming a Ti-O center dot center dot center dot Si-O bonding. And the change of chemical environment takes place for all of Ti, Si, Ca and Zr for cement-based piezoelectric ceramic composites. One prominent result pertaining to chemical reactions at the interface between ceramic particles and cement paste shows that Ti diffuses into the cement paste via Ti-O center dot center dot center dot Si-O bonding. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：133 / 138

页数：6

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