Effects of sintering conditions on phase formation and dielectric properties of 0.8Pb (Zr<inf>1/2</inf>Ti<inf>1/2</inf>) O<inf>3</inf>-0.2Pb(Co<inf>1/3</inf>Nb<inf>2/3</inf>)O<inf>3</inf>ceramics

• Main Authors: A. Prasatkhetragarn, P. Ketsuwan, M. Unruan, A. Ngamjarurojana, Y. Laosiritaworn, S. Ananta, R. Yimnirun, D. P. Cann
• Format: Journal
• Published: 2018
• Subjects: Materials Science; Physics and Astronomy
• Online Access: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=77949300571&origin=inward; http://cmuir.cmu.ac.th/jspui/handle/6653943832/49180
• Institution: Chiang Mai University

The influences of sintering conditions on dielectric properties of the 0.8Pb(Zr1/2Ti1/2)O3 -0.2Pb(Co1/3Nb2/3)O3 ceramics have been investigated with sintering temperatures of 1175, 1200°, 1225, and 1250°C and dwell times for 2, 6, and 10 hours. The crystal structure of dense specimens showed coexistence between tetragonal, rhombohedral and pseudo cubic phases in all sintering temperatures, while tetragonal-rich phase appeared with increasing dwell times. A maximum dielectric constant was observed at sintering condition of 1200°C for 2 hours, while the transition temperature slightly increased with increasing dwell time. All ceramics also showed diffused phase transition behaviors with a minimum diffusivity at sintering condition of 1200°C for 2 hours. Copyright © Taylor & Francis Group, LLC.