Abstract Uniform Al 2 O 3–ZrO 2 composite ceramic nanopowders containing 13.1–25.5 wt%
ZrO 2 were prepared by coprecipitation method using various precipitans (NH 4 HCO 3, NH …

The in situ formation is reported of a fine-grained ZrB2 ultra-high-temperature ceramic
(UHTC) containing evenly distributed ZrO2 of uniform size located at triple joints and grain …

Two test types were employed to determine the effect of DC electric field E= 5–8.3 Vcm− 1
applied in the loading direction on the tensile flow stress of 3Y-TZP (do= 0.44 μm) at 1450 …

Creep tests were performed in compression on a three-phase alumina–zirconia–mullite
composite in the temperature range 1673–1773K. The data show steady-state deformation …

Application of a dc electric field (E= 46V/cm) during the tensile deformation of an ultrafine-
grained 2.5 Y-TZP (d= 350nm) at 1450° C resulted in a significant reduction in the flow …

Superplastic deformation of a fully dense TZ3Y material, having a starting grain size around
135–145 nm and depleted of any amorphous phase at grain boundaries, has been …

The high‐speed densification behavior of nanocrystalline 3 mol% yttria‐stabilized tetragonal
zirconia polycrystal compacts during electric current‐activated/assisted sintering (ECAS) in …

High temperature mechanical behavior of nanocrystalline 1.7 mol%(3 wt%) yttria tetragonal
zirconia polycrystals (nc‐YTZP) was characterized by compression creep tests. The hot …

A first principles continuum analytical model for cationic segregation to the grain boundaries
in complex ceramic oxides is presented. The model permits one to determine the electric …

This work aims at investigating the mechanical behaviour of a zirconia-rich fused-cast
refractory at high temperature (C). The geometry of the zirconia phase was analysed on …