Effects of Manganese Addition on Phase Formation, Microstructure and Electrical Properties of Barium Titanate Ceramics

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In this study, the influence of Mn addition on phase formation, microstructure and electrical properties of Ba(Ti1-xMnx)O3 where x = 0.01 to 0.2 was investigated. The XRD patterns showed that the crystal structure of Ba(Ti1-xMnx)O3 at room temperature changed from tetragonal to hexagonal as Mn concentration increased, which also caused the room temperature dielectric constant decrease from 1143 to 47. The microstructure of Ba(Ti1-xMnx)O3 ceramics at low concentration revealed a bimodal microstructure. As the x value increased, the well grown grains decreased with the extent of fine-grained increased. Ferroelectric hysteresis (P-E) loop was not clearly observed as Mn concentration increased because of the formation of paraelectric hexagonal phase

Info:

Periodical:

Advanced Materials Research (Volumes 55-57)

Main Theme:

Edited by:

Tawee Tunkasiri

Pages:

97-100

DOI:

10.4028/www.scientific.net/AMR.55-57.97

Citation:

J. Tangsritrakul et al., "Effects of Manganese Addition on Phase Formation, Microstructure and Electrical Properties of Barium Titanate Ceramics", Advanced Materials Research, Vols. 55-57, pp. 97-100, 2008

Online since:

August 2008

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$35.00

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