Abstract
The preparation of powders for the manufacturing of high tech ceramics determines the quality of materials. Using the precursor for lead-magnesium-niobates (PMN), which was prepared from tartrate stabilized solutions of lead-acetate, magnesium-acetate and niobium-ammonium-oxalate in acetic acid by freeze-drying, both the mechanism of formation and the properties of products could be elucidated by X-ray diffraction, thermal analysis, determination of dispersity by laser diffraction particle sizing, mercury porosimetry and gas sorption measurement.
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