Development of novel diamond/cBN Materials via ultra-high pressure and high temperature

被引：0
作者：
机构：
[1] Sumitomo Electric Industries, Ltd., Advanced Materials R and D Laboratories, 1-1-1 Koya-kita, Itami
来源：
Sumiya, Hitoshi | 1600年 / Journal of the Japan Society of Powder and Powder Metallurgy, 15 Morimoto-cho Shimogamo, Sakyo-Ku Kyoto, Japan卷 / 61期
关键词：
CBN; Diamond; Direct conversion; High pressure; Nano polycrystal;
D O I：
10.2497/jjspm.61.349
中图分类号：
学科分类号：
摘要：
Novel ultra-hard materials: single-phase (binderless) polycrystalline diamond and cBN, have been produced by direct conversion sintering under static high pressure and high temperature. The polycrystalline diamond and cBN consist of fine grains of several tens or hundreds nano-meters without containing any secondary phases or binder materials. They have high hardness and high strength which surpass those of their single crystals and conventional sintered compacts containing binder materials. The fine microstructure features without any secondary phases and surpassing mechanical properties of the single-phase polycrystalline diamond and cBN are promising for applications in next-generation high-precision and high-efficiency cutting tools.
引用
收藏
页码：349 / 354
页数：5
相关论文
共 26 条
  • [1] Bundy F.P., Direct conversion of graphite to diamond in static pressure apparatus, Science, 137, pp. 1057-1058, (1962)
  • [2] Bundy F.P., Direct conversion of graphite to diamond in static pressure apparatus, J. Chem. Phys., 38, pp. 631-643, (1963)
  • [3] Bundy F.P., Wentorf R.H., Direct transformation of hexagonal boron nitride to denser forms, J. Chem. Phys., 38, pp. 1144-1149, (1963)
  • [4] Wakatsuki M., Ichinose K., Aoki T., Notes on compressible gasket and bridgman-anvil type high pressure apparatus, Jpn. J. Appl. Phys., 11, pp. 578-590, (1972)
  • [5] Naka S., Horii K., Takeda Y., Hanawa T., Direct conversion of graphite to diamond under static pressure, Nature, 259, pp. 38-39, (1976)
  • [6] Wakatsuki M., Ichinose K., Aoki T., Synthesis of polycrystalline cubic BN, Mat. Res. Bull., 7, pp. 999-1003, (1972)
  • [7] Corrigan F.R., Bundy F.P., Direct transitions among the allotropie forms of boron nitride at high pressures and temperatures, J. Chem. Phys., 63, pp. 3812-3820, (1975)
  • [8] Akaishi M., Satoh T., Ishii M., Taniguchi T., Yamaoka S., Synthesis of translucent sintered cubic boron nitride, J. Mater. Sci. Lett., 12, pp. 1883-1885, (1993)
  • [9] Uesaka S., Sumiya H., Itozaki H., Shiraishi J., Tomita K., Nakai T., Cutting tools using high-purity polycrystalline cubic boron nitride sintered bodies, SEI Technical Review, 50, pp. 34-40, (2000)
  • [10] Sumiya H., Uesaka S., Satoh S., Mechanical properties of high purity polycrystalline cBN synthesized by direct conversion sintering method, J. Mater. Sci., 35, pp. 1181-1186, (2000)
123