Effect of composition on phase formation, microstructure and dielectric properties of sol-bonded PZTN-PZT ceramics

• Main Authors: Sangsubun C., Watcharapasorn A., Jiansirisomboon S.
• Format: Article
• Language: English
• Published: 2014
• Online Access: http://www.scopus.com/inward/record.url?eid=2-s2.0-84891816286&partnerID=40&md5=74cada59cbae19dee06703e3fae9fd51; http://cmuir.cmu.ac.th/handle/6653943832/7294
• Institution: Chiang Mai University

The PZTN sol-powder was synthesized from a triol sol-gel process, while the ball milled PZT powder prepared from the reagent grade oxides of PbO, ZrO 2 and TiO2 powders. The sol and balled milled powders were mixed at a ratio of 30:70, 50:50 and 70:30 by weight. The results showed that at a composition of 70:30 had the maximum density values compared with the other two compositions. X-ray diffraction analysis indicated that a single tetragonal phase was observed at all sintering temperatures for this composition (70:30). The maximum room temperature dielectric constant measured at 1 kHz was 1151 could be achieved for the ceramic sintered at 1100°C for 4 h, where the densification was optimized. © 2013 Copyright Taylor and Francis Group, LLC.