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Title

Successive relaxor ferroelectric behavior in La modified (Ba,Sr)TiO borosilicate glass ceramics.

Authors

Yadav, Avadhesh; Gautam, C.

Abstract

In the present investigation, we are reporting the successive ferroelectric relaxor behavior of (Ba,Sr)TiO borosilicate glass ceramics. The ferroelectric relaxor nature of the present glass ceramics is attributed to structural phase transition from the rhombohedral to orthorhombic to tetragonal to cubic. A very high value of dielectric constant was found to be 89,684 at 100 Hz in glass ceramic sample 64[(BaSr)TiO]-30[2SiO-BO]-5[KO]-1[LaO], BST5K1L0.3S831 and such large value may be due to space charge polarization in glassy matrix. The various contribution in polarization processes are confirmed by impedance spectroscopic analysis.

Subjects

BOROSILICATES; CERAMIC metals; LANTHANUM; FERROELECTRIC materials; PERMITTIVITY

Publication

Journal of Materials Science: Materials in Electronics, 2014, Vol 25, Issue 8, p3532

ISSN

0957-4522

Publication type

Academic Journal

DOI

10.1007/s10854-014-2051-7

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