Abstract
It is shown that energy‐dispersive x‐ray diffraction (EDXRD) method can be used for correction of integrated intensities for preferred orientation in hexagonal close‐packed powders. The theory is based upon examination of the polar axis density distribution and upon the use of hexagonal harmonics in its representation. The reflexion method by Schulz added with defocusing correction was used. Measurements were carried out on three zinc samples with different degrees of orientation, the largest correction being 54 percent.
Highlights
The theory of x-ray diffraction on powder samples assumes a completely random orientation of crystallites
Merisalo, Pesonen and Inkinenl and Pesonen, Jrvinen and Kurki-Suonio 2 have developed for this purpose the symmetrized harmonic method and applied it successfully to cubic and hexagonal close-packed crystals
Later Laine, Kivil and Lhteenmki 3 have applied this method to the study of preferred orientation in cubic powders using the energydispersive x-ray diffraction (EDXRD) method
Summary
The theory of x-ray diffraction on powder samples assumes a completely random orientation of crystallites. In practice this demand is seldom realized. The correction of integrated intensities for preferred orientation is necessary, when accurate intensity measurements are required. Merisalo, Pesonen and Inkinenl and Pesonen, Jrvinen and Kurki-Suonio 2 have developed for this purpose the symmetrized harmonic method and applied it successfully to cubic and hexagonal close-packed crystals. Later Laine, Kivil and Lhteenmki 3 have applied this method to the study of preferred orientation in cubic powders using the energydispersive x-ray diffraction (EDXRD) method. The purpose of this work is to test the EDXRD-method to studying of the preferred orientation in hexagonal closepacked powder samples and to determine the correction of integrated intensities. The theory is based upon examination of the polar axis density distribution and upon the use of hexagonal harmonics in its representation
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
