Molten salt synthesis of Ba(Mg_1/3 Nb_2/3)O₃ powder

Abstract

The single-phase Ba(Mg_1/3 Nb_2/3)O₃ (BMN) powder was successfully prepared by the KCl molten salt synthesis (MSS) method. The temperature for single-phase BMN powders by MSS was about 400°C lower than that by the solid-phase method. The average particle size (APS) was about 0.91 μm at 900°C and increased with increasing synthesis temperature. Based on the APS, the activation energy for particle growth in the MSS, whose value was 64.1 kJmol^-1, was attained. The sinterability of the powder prepared by MSS method was better than that prepared by solid-phase method.

Keywords

Ba(Mg_1/3 Nb_2/3)O₃ / molten salt synthesis / powders / microwave dielectric ceramics

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