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Figure 5
(a) Mean phase fractions and (b) mean crystallite sizes for phases determined using XRD of five pyrite concentrate powder samples milled for different times. For the 0 min milling time sample, the crystallite size of rutile was fixed to 0.1 µm to prevent correlations between crystallite size and weight fraction parameters. Error bars represent sample standard deviations of the mean values for the five repeats at each milling time. Values of the Rietveld refinement residual Rwp are plotted in Fig. S8 and given in Table S3 with other residuals. Typical refinement profiles are shown in Fig. S9–15.

Journal logoJOURNAL OF
APPLIED
CRYSTALLOGRAPHY
ISSN: 1600-5767
Volume 55| Part 6| December 2022| Pages 1572-1582
https://doi.org/10.1107/S1600576722009888
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