Abstract
δ-FeO(OH)-type solid solutions have been synthesized with compositions Fe1−x M x O1−x (OH)1+x ranging up tox=0.10 for M=Ca,x=0.35 for M=Mg or Cd andx=0.40 for M=Zn. The phases are characterized by X-ray diffraction and transmission electron microscope studies. A structural model giving satisfactory intensity agreement is postulated for Fe1−x Zn x O1−x (OH)1+x . In this model, Zn2+ ions are situated in the 0 0 0 octahedral sites of space group D 33d -P¯3ml while the Fe3+ ions are almost equally distributed among both octahedral sites (0 0 0 and 0 0 1/2).
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Muller, O., Wilson, R. & Krakow, W. δ-FeO(OH) and its solid solutions. J Mater Sci 14, 2929–2936 (1979). https://doi.org/10.1007/BF00611477
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DOI: https://doi.org/10.1007/BF00611477