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Crystallite size distribution by two-dimensional XRD

Published online by Cambridge University Press:  07 April 2022

Bob B. He Open the ORCID record for Bob B. He [Opens in a new window]
Bob B. He*
Affiliation:
Bruker AXS, Madison, WI, USA
*
a)Author to whom correspondence should be addressed. Electronic mail: bob.he@bruker.com
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Abstract

The crystallite size distribution is an important parameter affecting the processing and properties of materials or products containing crystallites. The X-ray diffraction pattern collected with a two-dimensional detector may contain one or several spotty diffraction rings when an appropriate X-ray beam size is used. The spottiness of the diffraction ring is related to the size, size distribution, and orientation distribution of the crystallites. The intensity of a diffraction spot may represent its volume or size of a crystallite when a perfect Bragg condition is met. This paper introduces the algorithms and procedure to evaluate crystallite size distribution from a 2D diffraction pattern by rocking scan.

Keywords

crystallite size distributionrocking curvetwo-dimensional XRD

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Type
Instrumentation, Analysis and Laboratory Developments
Information
Powder Diffraction , Volume 37 , Issue 2 , June 2022 , pp. 76 - 83
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Copyright
Copyright © The Author(s), 2022. Published by Cambridge University Press on behalf of International Centre for Diffraction Data

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