Open AccessAssessment of crystallite size and strain of CaCu 3 Ti 4 O 12 prepared via conventional solid‐state reaction
Author(s) -
Ahmadipour Mohsen,
Abu Mohamad Johari,
Ab Rahman Mohd Fariz,
Ain Mohd Fadzil,
Ahmad Zainal Arifin
Publication year - 2016
Publication title -
micro and nano letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.25
H-Index - 31
ISSN - 1750-0443
DOI - 10.1049/mnl.2015.0562
Subject(s) - crystallite , rietveld refinement , materials science , scherrer equation , grain size , crystallography , analytical chemistry (journal) , transmission electron microscopy , mineralogy , crystal structure , chemistry , nanotechnology , composite material , chromatography , metallurgy
Assessment of crystallite size and strain of CaCu 3 Ti 4 O 12 (CCTO) with multimodal crystallite size is relatively a challenging task. Various estimation methods (Debye–Scherrer, Williamson–Hall, Rietveld refinement and Variance) are usually gave variation results due to different parameter selections of peaks broadening, for example, average line and integral breath (average and total). The high accuracy of estimation method is essential in order to obtain the best estimated result as close as possible to the observed crystallite size. Therefore, this Letter presents the comparison of estimation methods in determining the crystalline size and strain of CCTO from XRD peak broadening. The result shows that each method gave a different crystallite size as far as various solutions are concern and also depicts that the strain is same. However, Rietveld refinement, Debye–Scherrer and variance methods showed a highly correlated with domain size as observed from transmission electron microscopy analysis, due to an exclusion of the instrumental errors.