Elektronenmikroskopische Überprüfung der röntgenographischen Linienbreitenanalyse nach Hall

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Abstract
In the submicroscopic range crystallite sizes which are determined by means of various X-Ray methods show often considerable discrepancies .The reason for this are different analytical approximations made in the underlying theories of these methods. The results of the analysis of the X-Ray line width of wet-milled alluminium powder are compared with crystallite sizes which were obtained by dark-field electron mircoscopy. The basic method was Hall's analysis using different elimination procedures for apparative parameters and grain-size and internal strain contributions. The best agreement with the electron microscopic data was obtained by the Wagner-Aqua method combined with an approximation of the strain- and particle size profiles by Gaussian functions.

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