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
收藏
页码：133 / 138
页数：6
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