CETMIC   05378
CENTRO DE TECNOLOGIA DE RECURSOS MINERALES Y CERAMICA
Unidad Ejecutora - UE
artículos
Título:
Fabrication of dense ZrO2/CNT composites: Influence of Bead-milling treatment .
Autor/es:
GUSTAVO. SUAREZ, BYUNG-KOOG JANG, ESTEBAN AGLIETTI, YOSHIO SAKKA
Revista:
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
Editorial:
SPRINGER
Referencias:
Lugar: Berlin; Año: 2013 vol. 44 p. 4374 - 4381
ISSN:
1073-5623
Resumen:
Highly concentrated zirconia-carbon nanotube (CNT) water suspensions were prepared using
an advanced milling technique. The bead-milling operation parameters were optimized for this
system and used to prepare zirconia-stabilized water-based suspensions with different CNT
contents. The effects of different milling conditions were studied. The particle dispersion was
evaluated by SEM observations on dried suspension. Green?s density and SEM observations of
compacts were used to follow the colloidal dispersability of the composites. Materials of
tetragonal zirconia and CNTs were prepared with a high concentration of CNTs (1, 5, and
10 wt pct CNT). The homogeneous dispersion and distribution of the fibers in the bulk material
after slip casting of the suspension were examined. The samples were sintered using spark
plasma sintering (SPS) at 1473 K (1200 C) and finally, fully dense materials were obtained. The
mechanical properties were evaluated using the Vickers indentation technique