Relaxor behaviour in certain tungsten bronze ceramics

S. Narayana Murty Solid State Physics Laboratories, Department of Physics, Andhra University, Visakhapatnam, 530 003, INDIA

K. V. Ramana Murthy Solid State Physics Laboratories, Department of Physics, Andhra University, Visakhapatnam, 530 003, INDIA

K. C. Mouli Solid State Physics Laboratories, Department of Physics, Andhra University, Visakhapatnam, 530 003, INDIA

A. Bhanumathi Solid State Physics Laboratories, Department of Physics, Andhra University, Visakhapatnam, 530 003, INDIA

S. Bangar Raju Solid State Physics Laboratories, Department of Physics, Andhra University, Visakhapatnam, 530 003, INDIA

G. Padmavathi Dept. of Engineering Physics, College of Engineering, Andhra University, Visakhapatnam, 530 003, INDIA

K. Linga Murty Depts. of Nuclear Engineering. & Materials Science Engineering, North Carolina State University, Raleigh, NC, 27695, USA

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Abstract

Relaxor ferroelectrics with high Curie temperature are attractive candidates for electro-optic and pyroelectric devices. Solid solutions of (Sr_x Ba_1–x)_0.8 Na_0.4 Nb₂O₆ where × = 0.3 to 0.6 have been prepared by the conventional ceramic technique. The properties of relaxor ferroelectrics are dependent on ceramic processing conditions. Relaxor characteristics have been studied. A broad transition is observed in all the compositions. The broadness decreases gradually with the increase of strontium concentration.

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Relaxor behaviour in certain tungsten bronze ceramics

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Relaxor behaviour in certain tungsten bronze ceramics

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