Thermal analysis of mechanically alloyed Ni-Mo powders

I. Estrada-Guel; S. D. De la Torre; F. Espinosa-Magaña; L. Béjar-Gómez; R. Martínez-Sánchez

doi:10.4028/www.scientific.net/JMNM.15-16.507

Thermal analysis of mechanically alloyed Ni-Mo powders

I. Estrada-Guel, S. D. De la Torre, F. Espinosa-Magaña, L. Béjar-Gómez, R. Martínez-Sánchez

Producción científica: Contribución a una revista › Artículo de la conferencia › revisión exhaustiva

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Resumen

The Ni-Mo system processed through the mechanical alloying (MA) technique has been widely investigated. In this work, partially amorphous phase was obtained after long milling time at the Mo-47 at % Ni composition. DTA analysis reveals the presence of an exothermic event upon heating, which is attributed to crystallization of the amorphous phase. Prolonged milling time has an important effect on the crystallization temperature. DTA results reveal that the peak temperature is shifted to lower temperatures as the milling time is increased, Q values for powders milled in air atmosphere are lower than those calculated from counterparts milled under argon atmosphere.

Idioma original	Inglés
Páginas (desde-hasta)	507-512
Número de páginas	6
Publicación	Journal of Metastable and Nanocrystalline Materials
Volumen	15-16
DOI	https://doi.org/10.4028/www.scientific.net/JMNM.15-16.507
Estado	Publicada - 2003
Publicado de forma externa	Sí
Evento	Proceedings of the 9th International Symposium on Metastable Mechanically Alloyed and Nanocrystalline Materials (ISMANAM-2002) - Seoul, República de Corea Duración: 8 sep. 2002 → 12 sep. 2002

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title = "Thermal analysis of mechanically alloyed Ni-Mo powders",

abstract = "The Ni-Mo system processed through the mechanical alloying (MA) technique has been widely investigated. In this work, partially amorphous phase was obtained after long milling time at the Mo-47 at % Ni composition. DTA analysis reveals the presence of an exothermic event upon heating, which is attributed to crystallization of the amorphous phase. Prolonged milling time has an important effect on the crystallization temperature. DTA results reveal that the peak temperature is shifted to lower temperatures as the milling time is increased, Q values for powders milled in air atmosphere are lower than those calculated from counterparts milled under argon atmosphere.",

keywords = "Activation Energy, Mechanical Alloying, Ni-Mo, Thermal Analysis",

author = "I. Estrada-Guel and {De la Torre}, {S. D.} and F. Espinosa-Maga{\~n}a and L. B{\'e}jar-G{\'o}mez and R. Mart{\'i}nez-S{\'a}nchez",

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TY - JOUR

T1 - Thermal analysis of mechanically alloyed Ni-Mo powders

AU - Estrada-Guel, I.

AU - De la Torre, S. D.

AU - Espinosa-Magaña, F.

AU - Béjar-Gómez, L.

AU - Martínez-Sánchez, R.

PY - 2003

Y1 - 2003

N2 - The Ni-Mo system processed through the mechanical alloying (MA) technique has been widely investigated. In this work, partially amorphous phase was obtained after long milling time at the Mo-47 at % Ni composition. DTA analysis reveals the presence of an exothermic event upon heating, which is attributed to crystallization of the amorphous phase. Prolonged milling time has an important effect on the crystallization temperature. DTA results reveal that the peak temperature is shifted to lower temperatures as the milling time is increased, Q values for powders milled in air atmosphere are lower than those calculated from counterparts milled under argon atmosphere.

AB - The Ni-Mo system processed through the mechanical alloying (MA) technique has been widely investigated. In this work, partially amorphous phase was obtained after long milling time at the Mo-47 at % Ni composition. DTA analysis reveals the presence of an exothermic event upon heating, which is attributed to crystallization of the amorphous phase. Prolonged milling time has an important effect on the crystallization temperature. DTA results reveal that the peak temperature is shifted to lower temperatures as the milling time is increased, Q values for powders milled in air atmosphere are lower than those calculated from counterparts milled under argon atmosphere.

KW - Activation Energy

KW - Mechanical Alloying

KW - Ni-Mo

KW - Thermal Analysis

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AN - SCOPUS:8744231948

SN - 1422-6375

VL - 15-16

SP - 507

EP - 512

JO - Journal of Metastable and Nanocrystalline Materials

JF - Journal of Metastable and Nanocrystalline Materials

T2 - Proceedings of the 9th International Symposium on Metastable Mechanically Alloyed and Nanocrystalline Materials (ISMANAM-2002)

Y2 - 8 September 2002 through 12 September 2002

ER -

Thermal analysis of mechanically alloyed Ni-Mo powders

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