Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Erik Östhols0
Date of Patent
December 8, 2009
0Patent Application Number
120008740
Date Filed
December 18, 2007
0Patent Primary Examiner
Patent abstract
The present invention relates to a ceramic material consisting of β-sialon (Si6−zAlzOzN), polytype 12H, an intergranular amorphous or partly crystalline phase, and containing yttrium with a z-value of from about 0.7 to less than about 1.5. The ceramic material is useful as cutting tool insert for machining of heat resistant super alloys, with good notch wear, acceptable flank wear and sufficient toughness.
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