Browsing by Author "Kir, D, Islak, S, Celik, H, Celik, E"

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    Effect of the cBN content and sintering temperature on the transverse rupture strength and hardness of cBN/diamond cutting tools
    (2012-09-24) Islak S., Kir D., Çelik H., Çelik E.; Kir, D, Islak, S, Celik, H, Celik, E
    The aim of this work was to investigate the effect of cBN content and sintering temperature on the transverse rupture strength (TRS) of cBN/diamond cutting tools produced by hot pressing. The segments containing different cBN content were manufactured under 35 MPa pressure at 600, 650 and 700 °C with a 3 minutes sintering time. The TRS of segments were determined using three-point bending test. Microstructure and phase composition of fracture surface of segments were determined by scanning electron microscopy (SEM), and X-ray diffraction (XRD) analysis. The obtained results show that the TRS of the segments with cBN were higher than that of the segments with diamond.