The colloidal behavior of nickel aqueous suspensions is studied and compared to that of NiO suspensions. Under acidic conditions, nickel readily dissolves, but no dissolution takes place at basic pH.… (More)
Layered composites of alternate layers of pure Al 2O3 (thickness of 125 μm) and 85 vol% Al 2O3–15 vol% ZrO2 that was stabilized with 3 mol% Y2O3 (thickness of 400 μm) were obtained by sequential slip… (More)
Thin ceramic layers have been fabricated by dipping green tapes of alumina, formed by the doctor-blade casting method, into aqueous slurries containing mixtures of alumina and either unstabilized… (More)
Ceramic materials for skeletal repair and reconstruction are expanding to a number of different applications. Present research is addressing new compositions and performances to promote… (More)
Modern electrochemical devices require the morphological control of the active material. In this paper the synthesis of nickel hydroxide, as common active compound of such devices, is presented. The… (More)
Fracture features, residual stresses, and zirconia transformation are studied in indentation strength specimens of alumina-Y2O3stabilized zirconia (3% mol of Y2O3, 3YTZP) ceramics in order to analyze… (More)
Electrocatalytic applications of metal–ceramic composites (CerMet), such as Ni-YSZ materials, require processing adjustments to ensure the structural integrity of porous structures. In this paper,… (More)
A120, and A1203/Zr02 compacts containing CaO as a dopant have been sintered under different conditions and atmospheres: air, high vacuum (> lO-'torr). SEM observations have been made on the polished… (More)
The effect of residual stresses on the strength, toughness and work of fracture of Al2O3–5 wt.% tZrO2/Al2O3–30 wt.% mZrO2 layered ceramics with different thickness ratios has been investigated. The… (More)
Paola Parente a,b,∗, Yanicet Ortega c, Begoña Savoini d, Miguel A. Monge d, Antonella Tucci e, Leonardo Esposito e, Begoña Ferrari a, A. Javier Sanchez-Herencia a a Instituto de Cerámica y Vidrio –… (More)