Static X-Ray Scans on the Titanium Hydride (TiH2) Powder during Dehydrogenation

Nur Farhana Hayazi; Yu Wang; Mazlee Mohd Noor; Sammy Lap Ip Chan

doi:10.4028/www.scientific.net/AMR.795.124

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 795Static X-Ray Scans on the Titanium Hydride (TiH2)...

Static X-Ray Scans on the Titanium Hydride (TiH₂) Powder during Dehydrogenation

Abstract:

This work investigates the dehydrogenation of TiH₂powder during isothermal heating at 600°C using the static x-ray scans of high temperature x-ray diffraction (XRD). As-received TiH₂powder with a particle size of 5 μm and purity of 99.1% was used for this measurement. With increasing temperature, phase transformations occurred because of dehydrogenation and it happened very fast. It was found that during the phase transformation of TiH₂ to titanium, some transitional phases observed and occurred. This finding confirmed the in-situ determination of TiH₂powder dehydrogenation by using Rietveld Refinement Method from our previous research. This study is useful for the fabrication of titanium-based composites and titanium alloys from TiH₂ powder because the different phases in TiH₂ will affect the final mechanical properties in titanium.

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Periodical:

Advanced Materials Research (Volume 795)

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124-127

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.795.124

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Online since:

September 2013

Authors:

Nur Farhana Hayazi, Yu Wang, Mazlee Mohd Noor, Sammy Lap Ip Chan

Keywords:

Dehydrogenation, High Temperature XRD, Phase Transformation, Titanium Hydride

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