Preparation of Nano-Al2O3-Coated ZrO2 Modified by Silane Coupling Agent

Ran Ran Tian; Zhou Fa Zhou; Shu Mei Wang; Xiao Chun Dai; Chun Rong Wang; Yan Jie Li

doi:10.4028/www.scientific.net/AMR.152-153.648

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 152-153Preparation of Nano-Al2O3-Coated ZrO2 Modified by...

Preparation of Nano-Al₂O₃-Coated ZrO₂ Modified by Silane Coupling Agent

Abstract:

Core-shell nano-Al2O3-coated ZrO2 materials were prepared via a liquid co-deposition method using ZrO2 as cores. Surface of ZrO2 was modified by silane coupling agent. The mechanism of A-151[CH2=CH-Si-(OC2H5)3] was studied under the condition of HAc. The composite powders were characterized by FT-IR, TEM, EDS and SEM. TEM observation confirmed that amorphous Al2O3 layer deposited on the surface of ZrO2 and the thickness of the Al2O3 coating ranged from 5 to 10 nm. After sintered at 1650°C for 10 h, the size distribution narrowed down and the compactness of composite sintered body was better in comparison with pure zirconia.

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Advanced Materials Research (Volumes 152-153)

Pages:

648-652

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.152-153.648

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Online since:

October 2010

Authors:

Ran Ran Tian, Zhou Fa Zhou, Shu Mei Wang, Xiao Chun Dai, Chun Rong Wang, Yan Jie Li

Keywords:

A-151, Coated Powder, Nano-Al₂O₃-Coated ZrO₂, Surface Modification

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