INVESTIGADORES
GENNARI Fabiana Cristina
artículos
Título:
New Mg-based alloy obtained by mechanical alloying in the Mg-Ni-Ge system
Autor/es:
F. C. GENNARI; G. URRETAVIZCAYA; ANDRADE GAMBOA J.; G. O . MEYER
Revista:
JOURNAL OF ALLOYS AND COMPOUNDS
Editorial:
ELSEVIER SCIENCE SA
Referencias:
Lugar: Amsterdam; Año: 2003 vol. 354 p. 187 - 192
ISSN:
0925-8388
Resumen:
The
mechanical alloying (MA) of the 2Mg?0.5Ni?0.5Ge mixture at room temperature
under argon atmosphere was investigated. The crystal structure, morphology and
thermal stability of the products were characterized by X-ray diffraction,
scanning electron microscopy, energy dispersive X-ray analysis and differential
scanning calorimetry. A new alloy in the Mg?Ni?Ge system was synthesized by MA
of the 2Mg 0.5Ni?0.5Ge mixture and by the combination of MA and subsequent
thermal treatment. No evidence of the formation of Ni?Ge compounds was
observed. The new ternary alloy can be considered isostructural with Mg Ni
M-type compound, with a F cubic cell and a lattice parameter a=11.521 A° . Thermal studies show
that the Mg?Ge?Ni alloy is stable upon heating up to 500 C.