A dense and uniform polycrystalline ytterbium silicate skin on silicon nitride ceramics was developed by a controlled oxidation process to improve the hot corrosion resistance of silicon nitride. The process consists of purposely oxidizing the silicon nitride by heating it at high temperatures.
Origin
Advanced Materials Technology, Usa
Journal Title
J Am Ceram Soc 85 6 2002 1435-1440
Sector
Glass Ceramics
Class
GC 455