Microstructure Evolution of ZrO2-(Al2O3, Fe2O3) Materials Synthesized by Frozen-drying

Abstract

Abstract: Precursor powders of ZrO₂-Al₂O₃, ZrO₂-Fe₂O₃ and ZrO₂-(Al₂O₃, Fe₂O₃) systems were produced by frozen-drying. Their phases transformation and microstructure were developed at deferent temperatures and sintering durations. Microstructure with fine grains was obtained in the ZrO₂-(Al₂O₃, Fe₂O₃) system for the composition (ZrO₂:Al₂O₃:Fe₂O₃=60:32:8 mol%) sintered at 1400℃ for 15h. The results obtained show that Fe₂O₃ has the effect of glomeration of grains in ZrO₂ base ceramic materials.

Key words: frozen-drying, phases transformation, grains degree, multiphase ceramic, ZrO₂

CLC Number:

TB332
TQ174

LI Rui-Xing,YIN Shu,CHEN Lan,YU Ke-Ning,LI Shao-Hua,LIANG Huan-Zhen,SATO Tsugio. Microstructure Evolution of ZrO₂-(Al₂O₃, Fe₂O₃) Materials Synthesized by Frozen-drying[J]. Journal of Inorganic Materials.

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Microstructure Evolution of ZrO₂-(Al₂O₃, Fe₂O₃) Materials Synthesized by Frozen-drying

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