Development of a Turbine Rotor of Silicon Nitride

✍ Scribed by Dr.-Ing. Peter Walzer; Ing. (grad.) Manfred Langer; Dipl.-Geophys. Johann Siebels

• Book ID: 102944962
• Publisher: John Wiley and Sons
• Year: 1977
• Tongue: English
• Weight: 739 KB
• Volume: 8
• Category: Article
• ISSN: 0933-5137
• DOI: 10.1002/mawe.19770080904

✦ Synopsis

Abstract

Description of the development of ceramic turbine rotor consisting of a hot pressed silicon nitride hub and reaction sintered silicon nitride blade ring. Three different fabrication concepts are being investigated. At room temperature, prototype rotors have attained circumferential speeds up to 385 m/s. Simplified blade rings have survived gas temperature changes of 500 K/s. At temperatures of 1170 K, oxidation may reduce the strength of a reaction sintered component.