Article

Extinction in Polycrystalline Materials

T. M. SabineSchool of Physics and Materials, N.S.W. Institute of Technology, P.O. Box 123, Broadway, N.S.W. 2007

Australian Journal of Physicsjournal1985en

ABI

Abstract

An expression is given for an extinction factor appropriate to powders composed of spherical perfect crystal grains or subgrains. This factor extrapolates to the dynamical theory value for the plane parallel plate in the symmetric Bragg case. Experimental tests of the theory have been made by nelitron diffraction experiments on polycrystalline specimens of MgO of controlled grain size. Agreement is excellent to an extinction level of y = 0·60.

Topics

Muon and positron interactions and applications Advanced ceramic materials synthesis X-ray Diffraction in Crystallography

Identifiers

DOI: 10.1071/ph850507

Citations and references

Cited by 05 references

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