Formation of eutectic RuAl/Ru nanocomposite by mechanical alloying and subsequent annealing

Authors
Liu, KW Mucklich, F Birringer, R
Citation
Kw. Liu et al., Formation of eutectic RuAl/Ru nanocomposite by mechanical alloying and subsequent annealing, J MATER RES, 16(9), 2001, pp. 2459-2462
Citations number
14
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
JOURNAL OF MATERIALS RESEARCH
ISSN journal
08842914 → ACNP
Volume
16
Issue
9
Year of publication
2001
Pages
2459 - 2462
Database
ISI
SICI code
0884-2914(200109)16:9<2459:FOERNB>2.0.ZU;2-L
Abstract
No abrupt reaction was observed during mechanical alloying (MA) of Ru and A t powder mixtures with an eutectic composition (Ru70Al30). As-milled powder s constitute mainly a Ru(Al) solid solution and/or mixture (matrix), and a very small quantity of RuAl. The complete reaction between Ru and At during MA was speculated to be hampered by excess Ru in Ru60Al30. No exothermic h eat release was detected in differential scanning calorimetry for as-milled powders. Precipitation of RuAl from as-milled Ru(Al) matrix was observed a fter annealing at various temperatures. The phase fraction of Ru and RuAl r eaches art approximately equilibrium value after annealing at 1173 K.