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

Research output: Contribution to journalConference articlepeer-review

1 Scopus citations

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.

Original languageEnglish
Pages (from-to)507-512
Number of pages6
JournalJournal of Metastable and Nanocrystalline Materials
Volume15-16
DOIs
StatePublished - 2003
Externally publishedYes
EventProceedings of the 9th International Symposium on Metastable Mechanically Alloyed and Nanocrystalline Materials (ISMANAM-2002) - Seoul, Korea, Republic of
Duration: 8 Sep 200212 Sep 2002

Keywords

  • Activation Energy
  • Mechanical Alloying
  • Ni-Mo
  • Thermal Analysis

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