Skip to main content Accessibility help
×
Home

X-Ray Line Broadening Study on Shock-Modified Hematite

  • Y. Zhang (a1), J. M. Stewart (a1), B. Morosin (a2), R. A. Graham (a2) and C. R. Hubbard (a3)...

Abstract

Hematite (α-Fe2O3) powder compacts have been subjected to controlled, quantitative high pressure shock loading at peak pressures from 8-27 GPa and preserved for post shook analysis. The broadened x-ray diffraction peak profiles have been analyzed to determine the residual lattice strain and the coherent crystallite sizes. Maximum modification effects are observed near 17 GPa with strain values near 3 x 10-3 and size values near 200 Å suggesting annealing at higher shock pressure, resulting from the higher shock temperature.

Copyright

References

Hide All
1. Graham, R.A., Morosin, B, Venturini, E.L. and Carr, H.J., Ann, Rev. Mater, Sci. 16. 315 (1986); references therein.
2. Morosin, B., X-ray Diffraction Line Broadening of Shock-Modified Ceramic Powders, in High Pressure Explosive Processing of Ceramics, edited by Graham, R.A. and Sawaoka, A.B. (Trans Tech, 1987), Chapt. 13.
3. Venturini, E.L., Morosin, B. and Graham, R.A., Mater. Lett. 3 349 (1985).
4. Williamsory, D.L., Venturini, E.L., Graham, B. A. and Motosin, E.., Phys. Rev. B 34 1899 (1986).
5. Morosin, B., Graham, R.A., Venturini, E.L., M. J. Carr, and Williamson, D.L., Proc, of A.P.S. Topical Conference: Shock Waves in Condensed Matter, Monterey, CA 7/20/87.
6. Delhez, R., do Keijsen, Th. H. and Mittemeijer, E. J., Fresenius’ Z. Anal. Chem. 312 (1982) and references therein.
7. Morosin, B. and Mater, R.A. Graham. Sci,-and Eng. 66. 73 (1984).
8. Zhang, Y., Stewart, J.M., Venturini, E.L., and Morosin, B. (paper in preparation).
9. Graham, R.A. and Webb, D.M., in Shock Waves in Condensed Matter. 1983 edited by Asay, J. R., Graham, R.A. and Straub, G.K. (North Holland, New York, 1984, p. 211).
10. Graham, R.A. and Webb, D.M., in Shock Waves in Condensed Matter, edited by Guptra, Y.M. (Plenum, NY, 1986) p. 831.
11. Warren, B.E., Imperfect Crystals. X-rav Diffraction (Addison-Wesley, Menlo Park, CA 1969) Chap. 13.
12. Stokes, R.A., Proc. Phys. Soc. Lond. A61: 382 (1948).
13. Morosin, B. and Graham, R.A., Materials Letters 3 119 (1985).
14. Horie, Y. and Kipp, M.E., Modeling of Shock-Induced Solid State Chemistry, Sandla National Laboratories Report SAND86-2874, June 1987.

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed