Preparation of Core-shell Structural Zirconia Coated Alumina Nanocomposite Powders

Abstract

Abstract: A zirconia coated alumina nanocomposite was synthesized by the one-step alkoxide hydrolyzing method. A layer of very uniform nanocrystalline
zirconia shell with its thickness about 4～5nm was successfully coated onto the commercial nano-alumina particle. The thickness of the zirconia
layer can be controllable by adjusting the concentrations of zirconium source and acetic acid. The results show that such novel core-shell
nanocomposite powders of alumina-zirconia can be helpful to inhibit the much faster growth of alumina particles and show the uniform surface
morphogenesis. XRD, TEM, FESEM and EDS were used for the structural characterizations.

Key words: core-shell structure, zirconia coated alumina, alkoxide hydrolysis

CLC Number:

TB383

YU Jian-Chang. Preparation of Core-shell Structural Zirconia Coated Alumina Nanocomposite Powders[J]. Journal of Inorganic Materials.

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Preparation of Core-shell Structural Zirconia Coated Alumina Nanocomposite Powders

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