SiAlON based ceramic cutting tools

✍ Scribed by Bernd Bitterlich; Sebastian Bitsch; Kilian Friederich

• Publisher: Elsevier Science
• Year: 2008
• Tongue: English
• Weight: 717 KB
• Volume: 28
• Category: Article
• ISSN: 0955-2219
• DOI: 10.1016/j.jeurceramsoc.2007.09.003

✦ Synopsis

There is a continuous need for improving the existing cutting tool materials, which is driven by a strong competition on the market and also by more difficult to machine materials like, e.g. high alloyed grey cast iron. Ceramic cutting tools offer a high productivity due to their excellent hot hardness, which allows high cutting speeds. Under such conditions the cutting tool must be resistant to a combination of mechanical, thermal and chemical attacks.

The paper shows the potential of new alpha-beta-SiAlON cutting tools reinforced with SiC, WC, MoSi 2 or Ti(C,N) particles. The microstructure, mechanical properties and wear resistance of these composites will be presented.