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Glass and Ceramics

, Volume 63, Issue 11–12, pp 371–376 | Cite as

Synthesis of nonstoichiometric aluminomagnesium spinel with a tetragonal lattice (review)

  • A. N. Tsvigunov
  • A. V. Belyakov
  • P. D. Sarkisov
  • P. P. Faikov
  • N. T. Andrianov
  • B. V. Zhadanov
  • Yu. V. Ivleva
Science for Ceramics Production

Abstract

The results of x-ray diffraction and IR-spectroscopic studies of samples of nonstoichiometric aluminomagnesium spinel Mg1−x Al2−y O4−z (OH)z formed after treating aluminomagnesium spinel synthesized by the sol-gel method at temperatures of 800 and 1100°C with concentrated acids, are reported. It was found that three phases of nonstoichiometric aluminomagnesium spinel Mg1−x Al2−y O4−z (OH)z with tetragonal lattices and a different type of superstructure are formed. The x-ray patterns of the two phases correspond to body-centered lattices with parameters a = 5.712(3) Å, c = 8.092(3) Å, and a = 5.714(3) Å. The x-ray pattern of the third phase was indexed in a primitive tetragonal lattice: a = 5.718(3) Å, c = 24.261(27) Å.

Keywords

Octahedral Position Tetrahedral Position Octahedral Vacancy Fedorov Group Aluminomagnesium Spinel 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media, Inc. 2006

Authors and Affiliations

  • A. N. Tsvigunov
    • 1
  • A. V. Belyakov
    • 1
  • P. D. Sarkisov
    • 1
  • P. P. Faikov
    • 1
  • N. T. Andrianov
    • 1
  • B. V. Zhadanov
    • 1
  • Yu. V. Ivleva
    • 1
  1. 1.D. I. Mendeleev Russian Chemical Engineering UniversityMoscowRussia

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