Fast Mechanochemical Synthesis of Nanostructured PMN at Low Temperature

doi:10.3724/SP.J.1077.2010.00541

Abstract

Abstract:

Nanoscale lead magnesium niobate (PMN) powders of perovskite phase were synthesized by the screw grinder for 3h starting from raw materials of oxides. The influences of reaction conditions on products, such as weight of raw materials, grind power and grind time, were studied in detail. The results show that high grind power can reduce the synthesis time, improve the purity of products and decrease the particle size. The mechanochemical mechanism of PMN synthesis is confirmed via cross reaction experiments between raw materials. Magnesium niobate is firstly formed through mechanochemical reaction between MgO and Nb₂O₅, then reacted with PbO to get the PMN finally.

Key words: mechanochemical synthesis, lead magnesium niobate, reaction mechanism

CLC Number:

TQ174

WU Hao1,2, CHEN Cheng1, JIANG DanYu2, LI Qiang1. Fast Mechanochemical Synthesis of Nanostructured PMN at Low Temperature[J]. Journal of Inorganic Materials, 2010, 25(5): 541-545.

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