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HomeSolid State PhenomenaSolid State Phenomena Vol. 160Determination of the Orientation Relations between...

Determination of the Orientation Relations between the Low- and High-Temperature Phases of NiS

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Abstract:

In order to get information about the transition mechanism, the temperature-induced transformation in the binary com¬pound NiS was investigated. Above 379 °C, a single crystal of millerite -NiS transforms to polycrystalline NiAs type -NiS with a sharp texture. Pole figures of both phases in the same orientation were measured using synchrotron radiation and an imaging plate detector. The Rietveld texture analysis showed that there are at least three components of the high-temperature -NiS phase. The main component shows the following orientation relations: [001]NiAs type  [001]millerite, [100]NiAs type  [210]millerite, [210]NiAs type  [100]millerite. The broad peaks of the recovered polycrystalline millerite occur at the same positions as the reflections of the original single crystal.

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Solid State Phenomena (Volume 160)

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177-182

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https://doi.org/10.4028/www.scientific.net/SSP.160.177

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Online since:

February 2010

Authors:

Heidrun Sowa, Helmut Klein, Lars Raue

Keywords:

MAUD, NiS, Orientation Relationship, Phase Transition, Synchrotron Measurements, Texture, Transition Mechanisms

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© 2010 Trans Tech Publications Ltd. All Rights Reserved

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