Fabrication of PZT fibers by active carbon micro-reactor method

摘要

PZT fibers have many important using in sensors, actuators and transducers. PZT fibers have been successfully fabricated by much technology, such as Sol-Gel method, extrusion method and so on, but for the micro-reactor method very little study work has been done. Porous, structurally-ordered active carbon was used in this work. Due to a high rate of pore with microns diameter, millimeters length, run-through, and easy to remove at high temperature of active carbon, the pore was regarded as a field of localized reaction. Chemical reaction was limited in a small pore. The fabrication of PZT (Pb(Zr0.53Ti0.47)) fibers using these pores was studied, and the method was called active carbon micro-reactor method. The fiber samples were characterized by thermogravimetric analysis (TG), differential scanning calorimetry (DSC), X-ray diffraction (XRD) and scanning electron microscopy (SEM) techniques. The results shown that PZT fibers with the diameter about a few microns, the length up to several millimeters had been obtained, and PZT fibers was smooth, straight and high pure. The PZT fiber had the crystal structure of perovskite type after calcination and sintering at the temperature of 1000□for 1hour.