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Journal of Materials Science

, Volume 29, Issue 15, pp 4065–4069 | Cite as

Structure, stoichiometry and phase purity of strontium-doped lanthanum manganite powders

  • R. Millini
  • M. F. Gagliardi
  • G. Piro
Papers

Abstract

Strontium-doped lanthanum manganite La1, xSrxMnO3 (LSM) is characterized by hexagonal-rhombohedral distorted perovskite-type structure, deriving from the ideal cubic symmetry through rotation of the [MnO6] octahedra around the ternary axis. The extent of distortion and unit cell volume depend on Sr content. The linear variation of the unit cell volume, observed in the compositional range 0.1 ⩽ x ⩽ 0.5, can be effectively used for determining the stoichiometry of LSM. A procedure for the quantitative analysis of segregated impurities (La2O3 and Mn3O4) based on X-ray powder diffraction analysis, has also been developed.

Keywords

Polymer Quantitative Analysis Diffraction Analysis Mn3O4 Lanthanum 
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

© Chapman & Hall 1994

Authors and Affiliations

  • R. Millini
    • 1
  • M. F. Gagliardi
    • 1
  • G. Piro
    • 1
  1. 1.Eniricerche S.p.A.San Donato Milanese (MI)Italy

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