Al-TiC_(0.47)-B系结合剂对合成聚晶立方氮化硼的影响

Effect of Al-TiC _(0.47)-B Dopants on PCBN Synthesis

研究了 Al- Ti C0 .47- B系结合剂掺杂合成的 PCBN的抗压强度、磨耗比、连续切削性能与结合剂的掺杂量 ,Al、Ti C0 .47各自在结合剂中的含量及合成温度诸因素的关系。然后采用 X射线衍射分析和扫描电镜分析技术对合成的 PCBN试样的组织结构进行了分析 ,揭示了

A series of investigation were done, which include the relations of the dopant content of Al TiC 0.47 B, the ratio of Al, TiC 0.47 in binder and the sintering temperature with the compressing strength, the abrasion resistance and the cutting property of PCBN. The experimental results reveal that there is an appropriate rang for the content of dopants, ratio of Al TiC 0.47 in binder, and sintering temperature in which the best properties of PCBN are obtained. The PCBN sample was investigated by XRD and SEM.