Effect of PbO/CuO Addition to Microstructure and Electrical Properties of PLZT 9/65/35

• Main Authors: Apichart Limpichaipanit, Athipong Ngamjarurojana
• Format: Journal
• Published: 2018
• Subjects: Agricultural and Biological Sciences
• Online Access: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84950323103&origin=inward; http://cmuir.cmu.ac.th/jspui/handle/6653943832/44182
• Institution: Chiang Mai University

© Taylor and Francis Group, LLC. PLZT (Pb 0.91 La 0.09 (Zr0.6 5 Ti0.3 5 )0.977 5 O 3 ) ceramics can be prepared by sintering but it is difficult to obtain dense and transparent samples. In this study, PbO/CuO (where the ratio of PbO:CuO = 4:1) was used as a sintering aid to improve sinterability of PLZT. Glassy phase formation caused by the reaction between PbO and CuO promoted grain growth and densification. PLZT 9/65/35 + x wt% PbO/CuO (where x = 0, 1.0, 3.0 and 5.0) ceramics had relaxor ferroelectric behavior. Maximum dielectric constant at 1 kHz could be tailored to optimum condition when 1.0 wt% PbO/CuO was added and the ceramic was sintered at 1200°C (εr = 8370 and tan δ = 0.0093).