INVESTIGADORES
DAMONTE Laura Cristina
artículos
Título:
Nanocomposite formation in Zr-Al-Cu-Ni-Fe amorphous alloys by mechanically assisted nitridation
Autor/es:
M.BAB; L. C. DAMONTE; L. A.MENDOZA-ZÉLIS
Revista:
AIP CONFERENCE PROCEEDINGS
Editorial:
AIP
Referencias:
Año: 2005 p. 344 - 347
ISSN:
0094-243X
Resumen:
Zr-Al-Cu-Ni-Fe belongs to the best glass forming systems known. These glasses present a high thermal
stability and are suitable as precursor material for nanocomposites containing a variety of particles. At this respect, the
presence of a second phase embedded in the amorphous matrix improves their mechanical properties. Ball milling has
already demonstrated to be a valuable processing route for producing amorphous matrix nanocomposites, allowing by
passing most of the limitations inherent to the casting techniques. In this work we present results on the formation,
structure and thermal stability of nanocrystalline nitride particles dispersed in a Zr-Cu-Al-Ni-Fe amorphous matrix. The
nitride particles were obtained by high-energy ball milling of Zr64Al7Cu17Ni10Fe2 amorphous ribbons in nitrogen
atmosphere. The resulting nanocomposite structure was studied by Mössbauer spectroscopy and x-ray diffraction. Their
thermal behavior was analyzed by differential scanning calorimetry, showing an increase in the thermal stability of the
amorphous matrix by the composite formation.
atmosphere. The resulting nanocomposite structure was studied by Mössbauer spectroscopy and x-ray diffraction. Their
thermal behavior was analyzed by differential scanning calorimetry, showing an increase in the thermal stability of the
amorphous matrix by the composite formation.
64Al7Cu17Ni10Fe2 amorphous ribbons in nitrogen
atmosphere. The resulting nanocomposite structure was studied by Mössbauer spectroscopy and x-ray diffraction. Their
thermal behavior was analyzed by differential scanning calorimetry, showing an increase in the thermal stability of the
amorphous matrix by the composite formation.