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Line Broadening Studies on Highly Defective Al2O3 Produced by High Pressure Shock Loading†

Published online by Cambridge University Press:  06 March 2019

B. Morosin ,
E. J. Graeber  and
R. A. Graham
B. Morosin
Affiliation:
Sandia National Laboratories, Albuquerque, New Mexico 87185
E. J. Graeber
Affiliation:
Sandia National Laboratories, Albuquerque, New Mexico 87185
R. A. Graham
Affiliation:
Sandia National Laboratories, Albuquerque, New Mexico 87185
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Extract

Enhanced solid state reactivity of materials both during and after shock compression has been attributed to the introduction of large numbers of defects into the crystalline lattices and to reduction in the particle and crystallite size of powders [1,2]. Line broadening of x-ray diffraction profiles provides a means to determine the residual lattice strain resulting from such defect concentrations as well as a means to determine the coherent crystallite size. Various diffraction studies on shock-loaded powder materials have previously been reported and much of this work primarily by Soviet and Japanese scientists has recently been reviewed [2]. Cohen has reported results on shock-loaded copper [3]. In prior work, however, shock, pressures have not typically been quantified and there are few detailed line broadening investigations of refractory inorganic powders [1,4,5]. The present study on shock-loaded alumina powders is a detailed investigation of the influence of shock loading on residual lattice strain and coherent crystallite size.

Type
V. Other XRD Applications
Information
Advances in X-Ray Analysis , Volume 27: Thirty-Second Annual Conference on Applications of X-ray Analysis, August 1-5, 1983 , 1983 , pp. 369 - 378
Copyright
Copyright © International Centre for Diffraction Data 1983

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Footnotes

†

Work Supported by U.S. DOE contract # DE-A.C04-76DP00789.

References

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