Title :
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
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 (Srx Ba1-x)0.8 Na0.4RyNb 2O6 where Ry=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;
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
DOI :
10.1109/ISAF.1994.522355
