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Bibliographic Details
Main Author: Pal, Anand
Format: Preprint
Published: 2025
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Online Access:https://arxiv.org/abs/2512.00689
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author Pal, Anand
author_facet Pal, Anand
contents X-ray diffraction (XRD) peak broadening analysis remains a cornerstone for quantifying crystallite size and lattice microstrain in materials. Among various approaches, the Size Strain Plot (SSP) method is widely employed for its conceptual simplicity and ease of use. However, this study reveals that the equation most commonly applied in SSP analysis is dimensionally inconsistent, a critical flaw that has gone largely unnoticed and replicated across decades of materials research. This pervasive error raises concerns about the validity of a significant body of published microstructural data. By tracing the historical origin of the misformulated equation, we demonstrate how a seemingly minor oversight evolved into a widely accepted standard practice within the field. We then present a dimensionally consistent formulation that restores physical meaning and analytical reliability to the SSP method. The corrected framework re-establishes the SSP approach as a robust and physically valid tool for XRD-based microstructural characterization. \en
format Preprint
id arxiv_https___arxiv_org_abs_2512_00689
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle A Dimensionally Consistent Size-Strain Plot Method for Crystallite Size and Microstrain Estimation
Pal, Anand
Materials Science
Other Condensed Matter
X-ray diffraction (XRD) peak broadening analysis remains a cornerstone for quantifying crystallite size and lattice microstrain in materials. Among various approaches, the Size Strain Plot (SSP) method is widely employed for its conceptual simplicity and ease of use. However, this study reveals that the equation most commonly applied in SSP analysis is dimensionally inconsistent, a critical flaw that has gone largely unnoticed and replicated across decades of materials research. This pervasive error raises concerns about the validity of a significant body of published microstructural data. By tracing the historical origin of the misformulated equation, we demonstrate how a seemingly minor oversight evolved into a widely accepted standard practice within the field. We then present a dimensionally consistent formulation that restores physical meaning and analytical reliability to the SSP method. The corrected framework re-establishes the SSP approach as a robust and physically valid tool for XRD-based microstructural characterization. \en
title A Dimensionally Consistent Size-Strain Plot Method for Crystallite Size and Microstrain Estimation
topic Materials Science
Other Condensed Matter
url https://arxiv.org/abs/2512.00689