Journal
MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY
Volume 99, Issue 1-3, Pages 155-158Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/S0921-5107(02)00463-4
Keywords
BaTiO3; nano-powder; nano-grained ceramics; grain size distribution; chemical features
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Nano-grained BaTiO3 ceramics were synthesized by sintering BaTiO3 nano-powders; these powders were coated with Mn-materials. The phase transition and physical features of the BaTiO3 ceramics were investigated as a function of the sintering temperature and the amount of coating materials. With increasing the sintering temperature and/or the amount of the coating materials, the formation of a tetragonal phase was increased; this seems to be due to grain growth and grain boundary chemical features. The relation of the dielectric features of the nano-grained BaTiO3 ceramics with the structural variation is discussed in terms of process parameters. (C) 2002 Elsevier Science B.V. All rights reserved.
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