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  1. No Access

    Article

    Synthesis and powder X-ray diffraction analysis of new mixed rare-earth and selenium oxychlorides with composition LnSeO3Cl

    A series of new mixed rare-earth and selenium oxychlorides with composition LnSeO3Cl (Ln = La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Yb, or Y) were prepared by annealing together LnOCl and SeO2 in sealed silica tub...

    D. G. Shabalin, P. S. Berdonosov, V. A. Dolgikh, H. Oppermann… in Russian Chemical Bulletin (2003)

  2. No Access

    Article

    Crystal Structure and SHG Characterization of γ-BiSeO3Cl

    γ-BiSeO3Cl crystals were grown and characterized by x-ray microanalysis and second harmonic generation. The structure of γ-BiSeO3Cl was determined by single-crystal x-ray diffraction: sp. gr. Pna21, a = 11.707(4)...

    S. A. Ibragimov, P. S. Berdonosov, V. A. Dolgikh, D. Q. Huong… in Inorganic Materials (2002)

  3. No Access

    Article

    Thermochemical investigation of Re2O3—SeO2 systems: III. Yttrium selenium oxides in the pseudo-binary system

    Ternary pure phases in the thermodynamical equilibrium Y2SexO3+2x in the pseudo-binary Y2O3-SeO2 system have been synthesized by solid state reactions and characterized by X-ray powder diffraction, IR spectroscop...

    M. Zhang-Presse, H. Oppermann in Journal of Thermal Analysis and Calorimetry (2002)

  4. No Access

    Article

    Zustandsbarogramme — Zustandsdiagramme durch Gesamtdruckmessungen

    From phasebarograms it is possible to construct phase diagrams. We show on example of the system Bi/Se/O how follow ternary sections from the total pressure measurements in equilibrium and how we can attribute...

    H. Oppermann, H. Göbel, U. Petasch in Journal of thermal analysis (1996)

  5. No Access

    Article

    Investigation of the phase barograms and diagrams of the GeI4-I2, GeI4-BiI3 and GeI4-HgI2 systems

    The phase barograms of the systems GeI4-I2, GeI4-BiI3 and GeI4-HgI2 were determined by total pressure measurements in a membrane zero manometer and the resulting phase diagrams were compared with those obtained b...

    H. Oppermann, S. Witter, W. Ludwig in Journal of thermal analysis (1991)