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Study of high-pressure sintering behavior of cBN composites starting with cBN–Al mixtures

Published online by Cambridge University Press:  31 January 2011

Yongjun Li ,
Sicheng Li ,
Ran Lv ,
Jiaqian Qin ,
Jian Zhang ,
Jianghua Wang ,
Fulong Wang ,
Zili Kou  and
Duanwei He
Yongjun Li
Affiliation:
Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, People’s Republic of China
Sicheng Li
Affiliation:
Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, People’s Republic of China
Ran Lv
Affiliation:
Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, People’s Republic of China
Jiaqian Qin
Affiliation:
Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, People’s Republic of China
Jian Zhang
Affiliation:
Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, People’s Republic of China
Jianghua Wang
Affiliation:
Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, People’s Republic of China
Fulong Wang
Affiliation:
Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, People’s Republic of China
Zili Kou*
Affiliation:
Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, People’s Republic of China
Duanwei He
Affiliation:
Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, People’s Republic of China
*
a)Address all correspondence to this author. e-mail: [email protected]
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Abstract

Cubic boron nitride (cBN) composites starting with cBN–Al mixtures were sintered on WC-16 wt% Co substrates under static high pressure of 5.0 GPa and at temperatures of 800–1400 °C for 30 min. Vickers hardness of the sintered samples increased with increasing cBN content, and the highest hardness of 32.7 GPa was achieved for the cBN–5 wt% Al specimens sintered at 1400 °C. The reactions between cBN and Al started to occur at about 900 °C, and the reaction products strongly depended on the Al content, sintering temperature, and Co diffusion from the substrates according to the x-ray diffraction (XRD) observations. The high pressure and high temperature in situ resistance measurement indicated that the reactions between cBN and Al could be completed in about 90 s when the temperature was higher than ∼1200 °C at high pressure. The cBN composite sintered at 1200 °C from a cBN–15 wt% Al mixture showed the best cutting performance.

Keywords

Sintering
Type
Articles
Information
Journal of Materials Research , Volume 23 , Issue 9 , September 2008 , pp. 2366 - 2372
Copyright
Copyright © Materials Research Society 2008

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References

REFERENCES

1Onodera, A., Inoue, K., Yoshihara, H., Nakae, H., Matsuda, T.Hirari, T.: Synthesis of cubic boron nitride from rhombohedral form under high static pressure. J. Mater. Sci. 25, 4279 1990CrossRefGoogle Scholar
2Barsoum, M.W.Raghy, T.E.J.: Synthesis and characterization of a remarkable ceramic: Ti3SiC2. J. Am. Ceram. Soc. 79, 1953 1996CrossRefGoogle Scholar
3Low, I.M., Lee, S.K., Lawn, B.Barsoum, M.W.: Contact damage accumulation in Ti3SiC2. J. Am. Ceram. Soc. 81, 225 1998CrossRefGoogle Scholar
4Herzog, D.E.: Cutting tools with COMPAX diamond and BZN compact inserts slash production time and lower part cost. Cutting Tool Eng. 5, 64 1977Google Scholar
5Neo, K.S., Rahman, M., Li, X.P., Khoo, H.H., Sawa, M.Maed, Y.: Performance evaluation of pure CBN tools for machining of steel. J. Mater. Process. Technol. 140, 326 2003CrossRefGoogle Scholar
6Benko, E.: CBN-TiH2 composites: Chemical equilibria, microstructure and mechanical studies. Diamond Relat. Mater. 6, 1192 1997CrossRefGoogle Scholar
7Benko, E., Barr, T.L., Hardcastle, S., Hoppe, E., Bernasik, A.Morgiel, J.: XPS study of the cBN–TiC system. Ceram. Int. 27, 637 2001CrossRefGoogle Scholar
8Benko, E., Klimczyk, P., Mackiewicz, S., Barr, T.L.Piskorska, E.: cBN–Ti3SiC2 composites. Diamond Relat. Mater. 13, 521 2004CrossRefGoogle Scholar
9Benko, E., Morgiel, J.Czeppe, T.: BN sintered with Al: Microstructure and hardness. Ceram. Int. 23, 89 1997Google Scholar
10Rong, X.Z.Yano, T.: TEM investigation of high-pressure reaction-sintered cBN–Al composites. J. Mater. Sci. 39, 4705 2004Google Scholar
11Fang, L.M., He, D.W., Chen, C., Ding, L.Y.Luo, X.J.: Effect of precompression on pressure-transmitting efficiency of pyrophyllite gaskets. High Pressure Res. 27, 367 2007CrossRefGoogle Scholar
12Mirwald, P.W., Getting, I.C.Kennedy, G.C.: Low-friction cell for piston- cylinder high-pressure apparatus. J. Geophys. Res. 80, 1519 1975Google Scholar
13Kimura, Y., Miura, S., Suzuki, T.Mishima, Y.: Experimental methods of phase diagram determination in Materials Park (PA): TSM/ASM Symp. Proc., 114–121, 113 1993Google Scholar
14Hänström, A.Lazor, P.: High pressure melting and equation of state of aluminim. J. Alloys Compd. 305, 209 2000CrossRefGoogle Scholar
15Harris, T.K., Brookes, P.J.Taylor, C.J.: The effect of temperature on the hardness of polycrystalline cubic boron nitride cutting tool materials. Int. J. Refractory Metals Hard Mater. 22, 105 2004CrossRefGoogle Scholar
16Rong, X.Z.Fukunaga, O.: Sintering of cubic boron nitride with added aluminum at high pressure and high temperatures. Trans. Mater. Res. Soc. Jpn. 14B, 1455 1994Google Scholar