Microstructural studies of modified SBN ceramics

Author

Murty, S. Narayana ; Raju, S. Bangar ; Bhanumathi, A. ; Padmavathi, G. ; Murty, K. Linga

Author_Institution

Dept. of Phys., Andhra Univ., Visakhapatnam, India

fYear

1991

fDate

33457

Firstpage

269

Lastpage

272

Abstract

Strontium barium niobate (SBN) is a ferroelectric solid solution with tetragonal tungsten bronze structure. SBN exhibits excellent pyroelectric and electro-optic properties. Solid solutions of (Sr_xBa_1-x)_0.8 Na_0.4R_yNb ₂O₆ where R_y=Y, Zn, Mg, Fe, have been prepared by the conventional ceramic technique. The microstructures were studied with the aid of a scanning electron microscope on fractured surfaces of ceramic compositions and the average grain diameter was measured by the linear intercept method. The results are discussed in relation to the grain sizes

Keywords

barium compounds; ceramics; crystal microstructure; electro-optical effects; ferroelectric materials; grain size; pyroelectricity; scanning electron microscopy; strontium compounds; SBN; SEM; SrBaNb2O6; ceramic; electro-optic properties; ferroelectric solid solution; fractured surfaces; grain diameter; grain size; linear intercept method; microstructural studies; microstructure; modified SBN ceramics; pyroelectric properties; tetragonal tungsten bronze structure; Barium; Ceramics; Ferroelectric materials; Iron; Niobium compounds; Pyroelectricity; Solids; Strontium; Tungsten; Zinc;

fLanguage

English

Publisher

ieee

Conference_Titel

Applications of Ferroelectrics, 1994.ISAF '94., Proceedings of the Ninth IEEE International Symposium on

Conference_Location

University Park, PA

Print_ISBN

0-7803-1847-1

Type

conf

DOI

10.1109/ISAF.1994.522355

Filename

522355