INVESTIGADORES
ESQUIVEL Marcelo Ricardo Oscar
artículos
Título:
Effect of mechanical milling on the microstructure and hydrogen interaction of both Mm-Ni and MmNi5-Ni mixtures
Autor/es:
M.R. ESQUIVEL; G. MEYER
Revista:
MATERIALS SCIENCE FORUM
Editorial:
Trans Tech Publications
Referencias:
Lugar: Berna; Año: 2008 vol. 570 p. 72 - 78
ISSN:
0255-5476
Resumen:
Mechanical milling (MM) and a combination of MM and temperature heating were used to synthesize the intermetallic MmNi5 and a MmNi5-Ni mixture, respectively. The process evolution with time was analyzed by scanning electron microscopy (SEM) and X-ray diffraction (XRD). SEM was used to characterize size and morphology of particles in order to reveal the governing mechanisms during the milling of each system. X-ray diffraction (XRD) was utilized to determine strain and crystallite size changes introduced by milling.
The effects of integrated milling time on the sorption properties of the MmNi5-Ni mixture were analyzed. Results were correlated to defects introduced into microstructure. A comparison of the final characteristics of alloys obtained in each case is also shown.