AWAD, Abdel Salam; MERHEB, Diaa; ZAKHOUR, Mirvat; NAKHL, Michel; BOBET, Jean-Louis

doi:10.1016/j.jallcom.2017.05.176

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AWAD, Abdel Salam
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
Laboratoire de Chimie Physique des Matériaux [LCPM]

MERHEB, Diaa
Laboratoire de Chimie Physique des Matériaux [LCPM]
Plateforme de Recherche en Nanomatériaux et Nanosciences [PRN2]
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

ZAKHOUR, Mirvat
Laboratoire de Chimie Physique des Matériaux [LCPM]

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Journal of Alloys and Compounds. 2017, vol. 720, p. 182-186

Elsevier

Resumen en inglés

TiAl and TiAl3 titanium aluminide intermetallic compounds are synthesized directly within a few ten seconds by microwave technique. An initial mixture of TiH2 and Al powders has been used. Such mixture avoids the use of a microwaves susceptor. The hydrogen desorbed during the experiment keep the mixture in a reductive atmosphere thus avoiding possible oxidation. The role of TiH2 is then: (i) to act as a microwave absorber, (ii) to provide a reductive atmosphere and (iii) to provide energy through the hydrogen release reaction. The formation of the various intermetallics has been highlighted by X-ray diffraction and EPMA analysis.< Leer menos

Palabras clave en inglés

Titanium aluminides

Reactive synthesis

Microwaves heating

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Rapid and direct reactive synthesis of Ti–Al intermetallics by microwave heating of TiH2 and Al powder without microwave susceptor

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Resumen en inglés

Palabras clave en inglés

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