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Ceramics; electronic materials; electron microscopy; X-ray diffraction.

A simple coprecipitation technique was successfully applied for the preparation of pure ultrafine single phase, ZnNb₂O₆ (ZN). Ammonium hydroxide was used to precipitate Zn²⁺ and Nb⁵⁺ cations as hydroxides simultaneously. This precursor on heating at 750°, produced ZN powders. For comparison, ZN powders were also prepared by the traditional solid state method. The phase contents and lattice parameters were studied by the powder X-ray diffraction (XRD). Particle size and morphology were studied by transmission electron spectroscopy (TEM).

V V Deshpande¹ M M Patil¹ S C Navale² V Ravi¹

1. Physical and Materials Chemistry Division, National Chemical Laboratory, Pune 411 008, India
2. Polymer Science and Engineering Division, National Chemical Laboratory, Pune 411 008, India

Published

June 2005

Manuscript received

16 November 2004

Manuscript revised

9 February 2005