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4258945 
Journal Article 
The Influence of BMN Addition on the Phase Formation, Microstructure and Dielectric Property of BaTiO3 Ceramic 
Vittayakorn, WC; Pulphol, N; Roongtao, R; Muanghlua, R; Vittayakorn, N 
2013 
Yes 
Ferroelectrics
ISSN: 0015-0193 
451 
1 
15-21 
WOS:000328811900003 
Solid solutions of the (1-x)BT-xBMN system were prepared successfully by the solid state reaction method followed by normal sintering in air. The phase formation, microstructure and dielectric property of BT-BMN ceramics were investigated as a function of compositions. XRD results showed a single perovskite phase for all compositions. Cubic-tetragonal transformation was found after adding BMN into the system. SEM micrographs revealed two very different grain sizes in the ceramics, with compositions of x = 0.02, 0.03, 0.04 and 0.05. Fine grains indicated a cubic structure, whereas large ones indicated a tetragonal structure. Regarding the dielectric property, Curie temperature decreased with increasing BMN content, whereas the E-r value increased until the BMN content reached 3mol% before dropping to a lower value. 
BaTiO3; BaMg1; 3(Nb)2; 3(O3); dielectric property