Improvement of ferroelectric and dielectric properties of annealed pyrochlore free PZT based ceramics

• Main Authors: Gobwute Rujijanagul, Sucheewan Nabunmee, Parkpoom Jarupoom, Tawee Tunkasiri
• Format: Journal
• Published: 2018
• Subjects: Materials Science; Physics and Astronomy
• Online Access: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=79960709560&origin=inward; http://cmuir.cmu.ac.th/jspui/handle/6653943832/50068
• Institution: Chiang Mai University

The method of thermal annealing was applied to 0.05PZN-0.15PNN-0.8PZT ceramics to improve its electrical properties. The ceramics were prepared via a columbite method: sintered at 1250°C for 2 h, followed by the thermal annealing at 900°C for 8-24 h. Improvements in many electrical properties such as dielectric and ferroelectric properties were observed. Annealing for 8 h was found to be the optimum annealing condition for the ceramics. The results were discussed in term of densification and composition variation after annealing. Copyright © Taylor & Francis Group, LLC.