ZIRCONIA-TOUGHENED-ALUMINA CERAMIC INSERTS WITH THE ADDITION OF NANO PARTICLE METAL OXIDES AS ADDITIVES

摘要

The present invention provides cutting insert for cutting machinery comprising a Zirconia Toughened Alumina (ZTA) having a nano metal oxide additive. A method method of fabricating cutting insert is also provided. The method comprises mixing alumina together with Yttria Stabilized Zirconia (YSZ) and nano metal oxide additives; compacting the mixture in a compaction mold of a desired shape; sintering the compacted mixture for a predetermined period; and machining the sintered mixture to form the cutting insert.