Effects of Sintering Conditions on Phase Formation and Dielectric Properties of 0.8Pb(Zr1/2Ti1/2)O3 - 0.2Pb(Co1/3Nb2/3)O3 Ceramics
Source: Ferroelectrics, Volume 382, Number 1, 2009 , pp. 100-109(10)
Publisher: Taylor and Francis Ltd
Abstract: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.
Document Type: Research Article
Affiliations: 1: Department of Materials Science, School of Science and Technology, Naresuan University, Phayao, Thailand 2: Department of Physics, School of Science and Technology, Naresuan University, Phayao, Thailand 3: Department of Physics, Faculty of Science, Chiang Mai University, Tailand 4: School of Physics, Institute of Science, Suranaree University of Technology, Nakorn Ratchasima, Thailand 5: Materials Science, School of Mechanical, Industrial & Manufacturing Engineering, Oregon State University, Corvallis, OR, USA
Publication date: 2009-01-01