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Decrease of sintering temperature by CuO doping of the 0.8Pb(Mg 1/3 Nb 2/3 )O 3 ‐0.2PbTiO 3 ceramics prepared by reaction‐sintering method
Author(s) -
Fang Bijun,
Jiang Na,
Ding Chenlu,
Du Qingbo,
Ding Jianning
Publication year - 2012
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.201127486
Subject(s) - sintering , materials science , relative density , ceramic , doping , scanning electron microscope , analytical chemistry (journal) , atmospheric temperature range , perovskite (structure) , mineralogy , chemical engineering , metallurgy , composite material , chemistry , thermodynamics , physics , optoelectronics , chromatography , engineering
CuO‐doped 0.8Pb(Mg 1/3 Nb 2/3 )O 3 ‐0.2PbTiO 3 (0.8PMN‐0.2PT) ceramics were prepared by the reaction‐sintering method. X‐ray diffraction (XRD) measurement, scanning electron microscopy (SEM) observation and density measurement confirmed that the CuO‐doped 0.8PMN‐0.2PT ceramics prepared by the reaction‐sintering method with the addition of up to 5 mol% CuO and sintered over a wide sintering temperature range exhibit pure rhombohedral perovskite structure, rather homogeneous micromorphology and high relative density. As compared to the undoped 0.8PMN‐0.2PT ceramics prepared by the same method, CuO proves to be an effective sintering aid, which can greatly decrease the sintering temperature of the 0.8PMN‐0.2PT ceramics prepared by the reaction‐sintering method, where high relative density can be obtained and the electrical properties are not deteriorated or improved of the synthesized 0.8PMN‐0.2PT ceramics. The CuO doping content and sintering temperature exert great influences on the crystal structure, density and electrical properties of the 0.8PMN‐0.2PT ceramics prepared by the reaction‐sintering method.