A sintered cubic boron nitride (cBN) compact for use in a tool is composed of between about 60 and 80 vol-% cBN having a volumetric mean particle size of between about 3 to 6 m and between about 40 and 20 vol-% of a ceramic binder phase. The ceramic binder is composed of between about 20 and 60 vol-%...http://www.google.es/patents/US6814775?utm_source=gb-gplus-sharePatente US6814775 - Sintered compact for use in machining chemically reactive materials
Sintered compact for use in machining chemically reactive materials
