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X-ray investigation of theγ-β transformation of MnO2

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Applied Scientific Research, Section B

Summary

The paper deals with the question whether the phases intermediate betweenγ- andβ-MnO2, which occur upon heating the former, possess the same type of random layer structure which has been proposed and confirmed earlier forγ-MnO2. In order to test that hypothesis, the powder diffraction pattern has been computed for five different values of the pyrolusite concentrationp in the random structure. The ensueing curves account for the main features of the intensity records of samples heated at different temperatures. The remaining discrepancies are definitely reduced if each record is compared with an appropriate weighted average of theoretical curves, indicating that in each sample the values ofp are distributed within a wide range.

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Authors and Affiliations

  1. Laboratorium voor Technische Natuurkunde, Technische Hogeschool, Delft, Netherlands

    J. H. A. Laudy & P. M. De Wolff

Authors
  1. J. H. A. Laudy
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  2. P. M. De Wolff
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Laudy, J.H.A., De Wolff, P.M. X-ray investigation of theγ-β transformation of MnO2 . Appl. Sci. Res. 10, 157–168 (1962). https://doi.org/10.1007/BF02928071

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  • DOI: https://doi.org/10.1007/BF02928071

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