Combinatorial Studies of the Spinel and Rocksalt Regions in the Li–Mn–Ni–O System

Part of the Springer Theses book series (Springer Theses)


The entire spinel and rocksalt solid-solution regions of the Li–Mn–Ni oxide pseudo-ternary system were determined at 800 °C when regular cooled in air and when quenched or regular cooled in oxygen. All samples discussed here either contained one or two phases; and no evidence for nonequilibrium behaviour was seen. Two-phase fits in the coexistence regions were used to determine lattice parameters to allow the drawing of tie-lines. The lever rule was used to determine the boundaries and showed excellent agreement with visually identified phases. Milligram-scale combinatorial samples can therefore be used to obtain a high degree of precision in the mapping of pseudo-ternary phase diagrams.


Lithium Atom Lithium Content Lever Rule Coexistence Region Lower Oxygen Partial Pressure 
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© Springer International Publishing Switzerland 2014

Authors and Affiliations

  1. 1.Physics and Atmospheric Sciences Dept.Dalhousie UniversityHalifax, Nova ScotiaCanada

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