1-3 Piezoelectric composites with a porous matrix for biomedical engineering applications

Della, C. (2016) 1-3 Piezoelectric composites with a porous matrix for biomedical engineering applications. In: International Conference on Electronic Materials (IUMRS-ICEM 2016), Singapore, 04-08 Jul 2016,

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Piezoelectric composites with 1-3 connectivity have been widely studied due to their practical applications to biomedical engineering, such as biomedical imaging, ultrasound therapy and bone tissue engineering. They are flexible to conform to curved surfaces and their electromechanical properties and performance can be tailored for specific applications. A multi-step micromechanics-based analytical model is developed to evaluate the performance of a porous 1-3 piezoelectric composite where the fibre is piezoelectric and the matrix can be piezoelectric or non-piezoelectric. The matrix with porosity is first homogenized using the Mori-Tanaka model, and then the porous matrix with piezoelectric fibres is homogenized using the Mori-Tanaka method for piezoelectric. The Figures of Merit (FOM) of the 1-3 composite as a transducer for biomedical engineering applications is analyzed in the present work. Results of the studies show that the piezoelectric composite performances are largely dependent on the fibre volume fraction and that the presence of porosity further improved the performance of the composites. Various non-lead piezoelectric materials are also considered in the study.

Item Type:Conference Proceedings
Glasgow Author(s) Enlighten ID:Della, Dr Christian
Authors: Della, C.
Subjects:T Technology > TJ Mechanical engineering and machinery
College/School:College of Science and Engineering > School of Engineering
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