| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 6722133 | Construction and Building Materials | 2014 | 6 Pages |
Abstract
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-Oâ¯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-Oâ¯Si-O bonding.
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Authors
Biqin Dong, Yuqing Liu, Ningxu Han, Hongfang Sun, Feng Xing, Daoding Qin,