A new poling method for piezoelectric ceramics with thick film
2014
Abstract The poling process plays an important role in the interaction with the crystal structure in a number of ways to obtain ferroelectricity and piezoelectricity. However, many factors influence the effectiveness of poling process. In the conventional poling process, electric field is applied to the ceramics via the metal electrode. The drawback of conventional poling method is the occasional occurrence of fracture and crack due to subjection to high electric voltage. In this study, a new poling method by using ITO (Indium Tin Oxide) glass for piezoelectric ceramics with thick film is proposed. The constraint of applying high electric field has been overcome and is verified with the use of energy level concept. As compared to conventional method, using ITO for poling will preserve better performance via various experimental testing.
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