Fabrication of 1-3 piezo-composites using new micro PZT fibers

Caifeng Chen; Jun Liu; Xiaoning Jiang; Ying Luo; Fuh-Gwo Yuan; Xiaoli Han; Jinjin Liao

doi:10.1117/12.881099

19 April 2011 Fabrication of 1-3 piezo-composites using new micro PZT fibers

Caifeng Chen, Jun Liu, Xiaoning Jiang, Ying Luo, Fuh-Gwo Yuan, Xiaoli Han, Jinjin Liao

Proceedings Volume 7983, Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2011; 79833M (2011) https://doi.org/10.1117/12.881099
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2011, San Diego, California, United States

Abstract

This paper presents a novel fabrication method of PZT micro-fibers using activated carbon template with the aim of manufacturing PZT/epoxy 1-3 composites. Porous carbon was first prepared by chemical activation technology. The pore diameter formed in an activated carbon template is of several microns and lengths are up to several millimeters. These pores provide a basic platform to grow PZT fibers inside. Then the carbon template is removed at high calcination temperatures to form PZT micro-fibers. Subsequently, thermo-gravimetric analysis (TG) and differential scanning calorimetry (DSC) were performed to analyze the process of removing the template as temperature changing. For manufacturing 1-3 piezo-composites, the PZT fibers were carefully aligned in one direction and infiltrated by epoxy resin. Based on the observation from X-ray diffraction (XRD) the fibers show a pure pervoskite phase at low sintering temperature of 950°C. The fibers embedded orderly in the epoxy matrix are smoothly distributed and straightened which were observed using a scanning electron microscopy (SEM). The diameter of fibers is around several microns with the length up to a few millimeters, matching well with pores in the template. The new micro-fiber composite material can be potentially used in a sensor with high directivity in structural health monitoring.

Citation Download Citation

Caifeng Chen, Jun Liu, Xiaoning Jiang, Ying Luo, Fuh-Gwo Yuan, Xiaoli Han, and Jinjin Liao "Fabrication of 1-3 piezo-composites using new micro PZT fibers", Proc. SPIE 7983, Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2011, 79833M (19 April 2011); https://doi.org/10.1117/12.881099

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KEYWORDS

Ferroelectric materials

Carbon

Composites

Epoxies

Scanning electron microscopy

Ceramics

Polymers

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