A Simple Method for the Preparation of Nanostructured Aluminate Coatings
A simple method for the preparation of nanostructured aluminate coatings based on the hydrolysis of aluminum nitride powder is described. The coatings were successfully deposited on a sintered yttria-stabilized tetragonal zirconia (Y–TZP) ceramic substrate. The nanocrystalline coating formed using this method consists of -AlOOH (boehmite) in the form of 6-nm-thick and 240-nm-long interconnected lamellas. During a subsequent heat treatment in the temperature range from 900° to 1200°C, this coating was transformed to various transient aluminas without any noticeable change in the morphology.
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Document Type: Research Article
Affiliations: Engineering Ceramics Department, Jozef Stefan Institute, Jamova 39, SI-1000 Ljubljana, Slovenia
Publication date: October 1, 2009