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

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Abstract

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.

Keywords

Lithium Atom Lithium Content Lever Rule Coexistence Region Lower Oxygen Partial Pressure 
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.

Copyright information

© Springer International Publishing Switzerland 2014

Authors and Affiliations

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

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