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- Title
The limit of application of the Scherrer equation.
- Authors
Miranda, M. A. R.; Sasaki, J. M.
- Abstract
The Scherrer equation is a widely used tool to obtain crystallite size from polycrystalline samples. Its limit of applicability has been determined recently, using computer simulations, for a few structures and it was proposed that it is directly dependent on the linear absorption coefficient (μ0) and Bragg angle (θB). In this work, a systematic study of the Scherrer limit is presented, where it is shown that it is equal to approximately 11.9% of the extinction length. It is also shown that absorption imposes a maximum value on it and that this maximum is directly proportional to sin θB/μ0.
- Subjects
POLYCRYSTALS; ABSORPTION coefficients; X-ray diffraction; MATHEMATICAL models
- Publication
Acta Crystallographica. Section A, Foundations & Advances, 2018, Vol 74, Issue 1, p54
- ISSN
2053-2733
- Publication type
Article
- DOI
10.1107/S2053273317014929