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Rolling Texture Differences in Duplex Steels with Strong and Random Initial Orientations
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X-Ray Diffraction and Electric Measurements of Phase Transformation in Li-Mn Spinels
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High-Pressure Energy Dispersive X-Ray Diffraction Investigation of Lithium-Manganese Spinel
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Precise Lattice Parameters of the Sr0.61Ba0.39Nb2O6 Single Crystal
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Gradients of Parameters of the Real Structure in Steels Surface Layers after Mechanical Treatment
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High-Pressure Energy Dispersive X-Ray Diffraction Investigation of Lithium-Manganese Spinel

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Abstract:

The formation of the tetragonal high-pressure structure, attributed to the Jahn-Teller distortion, was proved. The c/a axial ratio shows an increasing trend towards a stronger tetragonal distortion at high pressure. Rietveld refinement after the pressure relaxation demonstrates the presence of tetragonal artefacts of the high-pressure structure only for the LiMn2O4 sample compressed in hexagonal boron nitride (h-BN), whereas the sample compressed in silicone reveals the pure cubic phase. Confrontation with the result of the first angle-dispersive diamond-anvil-cell experiment is presented.

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Periodical:

Solid State Phenomena (Volume 130)

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69-72

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.130.69

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Online since:

December 2007

Authors:

Paweł Piszora

Keywords:

High Pressure Structure, LiMn2O4, Phase Transition

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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