Patent ID: 7670980
Filing Date: 2010-03-02
Classification: C04B

Abstract:
1. A cutting tool insert composed of a composite comprising a cBN-phase and a binder phase comprising a titanium carbonitride phase and a TiB 2 phase, wherein, in a XRD pattern from the composite using CuKa-radiation, (i) a peak height ratio of a strongest TiB 2 (101) peak and a strongest cBN (111) peak is less than about 0.06, and (ii) a (220) peak from the titanium carbonitride phase in the XRD-pattern intersects both vertical lines of a PDF-line of TiC (PDF 32-1383) and a PDF-line of TiN (PDF 38-1420) and has a lowest intersected point height that is at least about 0.15 of a maximum in the (220) peak height of the binder phase.