Premium
Phase Evolution of Solid‐State BaTiO 3 Powder Prepared by Different Starting BaCO 3
Author(s) -
Lee TingTai,
Huang ChiYuen,
Chang CheYuan,
Cheng IKuan,
Hu ChingLi,
Su CheYi,
Lee ChunTe,
Fujimoto Masayuki
Publication year - 2013
Publication title -
international journal of applied ceramic technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 57
eISSN - 1744-7402
pISSN - 1546-542X
DOI - 10.1111/ijac.12072
Subject(s) - materials science , calcination , tetragonal crystal system , sintering , barium titanate , microstructure , ceramic , ceramic capacitor , phase (matter) , reducing atmosphere , chemical engineering , mineralogy , nanoparticle , activation energy , composite material , chemistry , nanotechnology , metallurgy , capacitor , physics , organic chemistry , quantum mechanics , voltage , engineering , catalysis , biochemistry
Two different specific surface area of starting Ba CO 3, 10 and 30 m 2 /g, are used to prepare solid‐state BaTiO 3 powder. Pure tetragonal BaTiO 3 was obtained at a lower calcination temperature with smaller Ba CO 3 , and the kinetic calculations of activation energy also agree with it. A clear, thin, and nano‐sized cubic BaTiO 3 clusters on TiO 2 particles were also observed. A narrower particle size distribution of BaTiO 3 powder (350 nm) was obtained from 30 m 2 /g of starting Ba CO 3 at 1000°C. After sintering with reducing atmosphere, the ceramics with potential of X8R or X7R specifications and a clear core–shell microstructure were obtained in this study.
Accelerating Research
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom
Address
John Eccles HouseRobert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom