Water-Based Method for Processing Aluminum Oxynitride (AlON)
Abstract:A water-based method for producing aluminum oxynitride (AlON) green bodies with a relatively high density is described. While alcohol is usually the medium for ball milling, this approach utilizes water to form a rigid network of aluminum hydroxide in Al2O3–AlN preforms. Al2O3–AlN preforms were prepared by four different routes based either on alcohol or water-based slips, and underwent identical sintering procedures. Samples prepared using the water-based method and pressure filtration reached a green density of 67%, compared with 52% and 47% for samples prepared from alcohol-based slips and formed using pressure filtration and dry pressing, respectively.
Document Type: Research Article
Affiliations: Department of Materials Engineering, Technion–Israel Institute of Technology, Haifa 32000, Israel
Publication date: November 1, 2008