Hostname: page-component-78c5997874-j824f Total loading time: 0 Render date: 2024-11-06T01:22:12.675Z Has data issue: false hasContentIssue false

Dynamic consolidation of cubic boron nitride and its admixtures

Published online by Cambridge University Press:  31 January 2011

Hua Tan
Affiliation:
Seismological Laboratory, California Institute of Technology, Pasadena, California 91125
Thomas J. Ahrens
Affiliation:
Seismological Laboratory, California Institute of Technology, Pasadena, California 91125
Get access

Abstract

Cubic boron nitride (C–BN)' powders admixed with graphite-structured boron nitride powder (g-DN), silicon carbide whisker (SCW), or silicon nitride whisker (SNW) were shock compacted to pressures up to 22 GPa. Unlike previous work with diamond and graphite [D. K. Potter and T. J. Ahrens, J. Appl. Phys. 63, 910 (1987) it was found that the addition of g-BN inhibited dynamic consolidation. Good consolidation was achieved with a 4–8 μm particle size C–BN powder admixed with 15 wt.% SNW or 20 wt.% SCW whereas a 37–44 μm particle size C–BN mixture was only poorly consolidated. Scanning electron microscopy (SEM) analysis demonstrates that SCW and SNW in the mixtures were highly deformed and indicated melt textures. A skin heating model was used to describe the physics of consolidation. Model calculations are consistent with SEM analysis images that indicate plastic deformation of SCW and SNW. Micro-Vickers hardness values as high as 50 GPa were obtained for consolidated C–BN and SNW mixtures. This compares to 21 GPa for single-crystal Al2O3 and 120 GPa for diamond.

Type
Articles
Copyright
Copyright © Materials Research Society 1988

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1Potter, D. K. and Ahrens, T. J., J. Appl. Phys. 63, 910 (1987).CrossRefGoogle Scholar
2Potter, D. K. and Ahrens, T. J., Appl. Phys. Lett. 51, 317 (1987).CrossRefGoogle Scholar
3Graham, R. A. and Sawaoka, A. B., in High Pressure Explosive Processing of Ceramics, edited by Graham, R. A. and Sawaoka, B. (Trans. Tech. Publ. Ltd., Aedermannsdorf, Switzerland, 1987), pp. 17 and 18.Google Scholar
4Gourdin, W. H., in Ref. 3, pp. 207227.Google Scholar
5Davison, L. and Graham, R. A., Phys. Rep. 55, 255 (1979).Google Scholar
6Ahrens, T. J., Thadhani, N., Mutz, A. H., Vreeland, T. Jr , and Schwarz, R. B., in Metallurgical Application of Shock-Wave and High-Strain-Rate Phenomena, edited by Murr, L. E., Staudhammer, K. P., and Meyers, M. A. (Marcel Dekker, New York, 1986), pp. 83106.Google Scholar
7Ahrens, T. J., Kostka, D., Vreeland, T. Jr , Schwarz, R. B., and Kasiraj, P., in Shock Waves in Condensed Matter—1983, edited by Asay, J. R., Graham, R. A., and Straub, G. K. (Elsevier, New York, 1984), pp. 443446.Google Scholar
8Kasiraj, P., Vreeland, T. Jr , Schwarz, R. B., and Ahrens, T. J., Acta Metall. 32, 1235 (1984).Google Scholar
9Murr, L. E., Hare, A. W., and Eror, N. B., Nature 329, 37 (1987).Google Scholar
10Akashi, T. and Sawaoka, A. B., in Ref. 3, pp. 87118.Google Scholar
11Kondo, K., in Ref. 3, pp. 227282.Google Scholar
12Sawaoka, A. B., Beauchamp, E. K., Akashi, T., and Carr, M. J., in Summary of Studies on Shock Compaction and Shock Modification of Ceramics, edited by Sawaoka, A. B. and Akashi, T. (New Mexico Institute of Mining and Technology, Socorro, NM, 1986), pp. 1519.Google Scholar
13Akashi, T. and Sawaoka, A. B., J. Mater Sci. 22, 1127 (1987).CrossRefGoogle Scholar
14Ichinose, K., Wakatsuki, M., Aoki, T., and Mead, Y., in Proceedings of the Fourth International Conference on High Pressure—1974, special issue of the Review of Physical Chemistry of Japan, edited by Osugi, J. (Kawakita, Kyoto, Japan, 1975), pp. 436440.Google Scholar
15Tateho Chemical Industries Co., Ltd., according to the data and information supplied, 1988.Google Scholar
16LaRocca, E. W. and Pearson, J., Rev. Sci. Instrum. 29, 848 (1958).Google Scholar
17Sawaoka, A. B., Akashi, T., and Lotrich, V. F., in Ref. 3, pp. 5165.Google Scholar
18Ahrens, T. J., Kostka, D., Kasiraj, P., and Vreeland, T. Jr , in Rapid Solidification Processing Principles and Technologies, III, Proceedings of the Third Conference on Rapid Solidification Processing, edited by Mehrabian, R. (U.S. National Bureau of Standards, Gaithersburg, MD, 1982), pp. 672677.Google Scholar
19Gourdin, W. H., J. Appl. Phys. 55, 172 (1984).CrossRefGoogle Scholar
20Schwarz, R. B., Kasiraj, P., Vreeland, T. Jr, and Ahrens, T. J., Acta Metall. 32, 1243 (1984).CrossRefGoogle Scholar
21Bundy, F. P., and Wentroff, R. H. Jr , J. Chem. Phys. 38, 1144 (1963).Google Scholar
22Varma, C. K. R., in Ref. 14, pp. 408412.Google Scholar
23Corrigan, F. R., in High-Pressure Science and Technology, Sixth AIRAPT Conference, edited by Timmerhaus, K. D. and Barber, M. S. (Plenum, New York, 1977), Vol. 1, pp. 994999.Google Scholar
24Soma, T., Sawaoka, A., and Saito, S., in Ref. 14, pp. 446453.Google Scholar
25Ahrens, T. J., in Methods of Experimental Physics (Academic, New York, 1987), Vol. 24, Part A, pp. 185235.Google Scholar
26McQueen, R. G., Marsh, S. P., Taylor, J. W., Fritz, J. N., and Carter, W. J., in High Velocity Impact Phenomena, edited by Kinslow, R. (Academic, New York, 1970), pp. 293417.CrossRefGoogle Scholar
27LASL Shock Hugoniot Data, edited by Marsh, S. P. (University of California, Berkeley, CA, 1980).Google Scholar
28Lange's Handbook of Chemistry, edited by Dean, J. A. (McGraw-Hill, New York, 1985).Google Scholar
29Norwood, F. R., Graham, R. A., and Sawaoka, A., in Shock Waves in Condensed Matter—1985, edited by Gupta, Y. M. (Plenum, New York, 1988), pp. 837842.Google Scholar
30Vechen, J. A. Ven, Phys. Rev. B 7, 1479 (1973).Google Scholar
31Larsen, D. C., Adams, J. W., and Ruh, R., in Progress in Nitrogen Ceramics, Proceedings of the NATO Advanced Study Institute on Nitrogen Ceramics—1981, edited by Riley, F. L. (Martinus Nijhoff, The Hague, The Netherlands, 1983), pp. 695710.Google Scholar
32Dulin, I. N. and Alt'shuler, L. V., Sov. Phys. Solid State 11, 1016 (1969).Google Scholar
33Petrovic, T. J., Olinger, B. W., and Roof, R. B., in Ref. 7, pp. 463466.Google Scholar