Annealing effect on relaxor behaviours of spark plasma sintered Pb(Sc1/2Nb1/2)O-3 superfine ceramics
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摘要Relaxor ferroelectric Pb(Sc1/2Nb1/2)O-3 (PSN) superfine ceramics were fabricated by spark plasma sintering process and subjected to an annealing in oxygen ambience at a low temperature of 500 degrees C. The microstructure of the PSN ceramics was examined by X-ray diffraction and scanning and transmission electron microscopy, while the dielectric properties were measured in the range of 25-200 degrees C. The dielectric measurements revealed a reverse change in the frequency dispersion Delta T and diffusive factor lambda as annealing extended. Transmission electron microscopy observation and conductivity measurement revealed that the uncommon performance in relaxor properties could be attributed to the complex effects of oxygen vacancies and domain structures induced by the annealing.
著者Zhu MK, Tang JL, Ke N, Qiu Q, Lei N, Hou YD, Yan H, Xu JB
期刊名稱Advances in Applied Ceramics
出版年份2011
月份2
日期1
卷號110
期次2
出版社Taylor & Francis: STM, Behavioural Science and Public Health Titles
頁次74 - 79
國際標準期刊號1743-6753
電子國際標準期刊號1743-6761
語言英式英語
關鍵詞Annealing; Dielectric properties; Ferroelectric; Pb(Sc1/2Nb1/2)O-3; Perovskite
Web of Science 學科類別Materials Science; Materials Science, Ceramics; MATERIALS SCIENCE, CERAMICS

上次更新時間 2020-29-11 於 23:53