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X-SIALON/MULLITE CERAMICS PRECURSORS, POWDERS AND COST EFFECTIVE COMPONENTS WITH IMPROVED MICROSTRUCTURE AND PROPERTIES.

Objective

The aim of the project is to develop new types of high quality, cost effective ceramics with improved thermomechanical properties based on the two phases x-sialon and mullite. The project should provide the necessary background for a later Type 1 BRITE/EURAM project on the use of advanced x-sialon/mullite ceramics for high temperature engineering or other advanced applications.
With this research, European industry has the chance to lead in developing cost-effective mullite-based materials as a useful high temperature ceramic. It also brings information, and a better understanding of the relation between properties, microstructure, and interfaces in ceramic-ceramic composites.
The project involves:
-Developing cost effective methods for the fabrication of high quality powders for advanced high-temperature xªsialon/mullite ceramics with improved microstructure and enhanced properties.
-Developing shaping technology and pressureless sintering as well as sinter-hip techniques for the fabrication of near theoretical density, high strength components of reliable shape and geometry in x-sialon and x-sialon/mullite ceramics.
-Developing of x-sialon/mullite composites with tailored microstructure composed of prismatic mullite "whiskers" in a fine grained matrix to achieve improved mechanical strength, thermal shock resistance and oxidation resistance at high temperatures.
-Special emphasis on the control of fine particles in the fabrication process.

Coordinator

Technical University of Denmark
Address
Building 204
2800 Lyngby
Denmark

Participants (2)

Centre de recherches de l'industrie belge de la ceramique
Belgium
UNIVERSITY OF STRATHCLYDE
United Kingdom
Address

G1 1XQ Glasgow