Results 171 to 180 of about 3,464 (211)

The dielectric properties of yttria-stabilized zirconia

Materials Letters, 1989
Abstract The dielectric properties of yttria-stabilized cubic zirconia were measured over a wide range of frequency (100 to 1 × 10 10 Hz) and temperature (25 to 200°C). The dielectric constant and loss increased with temperature owing to the presence of mobile oxygen vacancies.
M.T. Lanagan, J.K. Yamamoto, A. Bhalla, S.G. Sankar   +3 more
openaire   +1 more source

Retention of iodine in yttria stabilized zirconia

Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 1999
The diffusion behavior of iodine in yttria stabilized zirconia (YSZ) was investigated as a function of the temperature. Iodine implantation was performed in this cubic solid solution by irradiating material samples with 1 MeV iodine ions. The distribution of iodine was evaluated by using TRIM computer calculation and measured by Rutherford ...
Pouchon, Manuel Alexandre, Döbeli, M., Degueldre, Claude   +2 more
openaire   +2 more sources

Microwave synthesis of yttria stabilized zirconia

Materials Research Bulletin, 2005
Yttria stabilised zirconia (YSZ) nanocrystals, with a mean size between 5 and 10 nm, were prepared by microwave flash synthesis. Flash synthesis was performed in alcoholic solutions of yttrium, zirconium chloride and sodium ethoxide (EtONa) using a microwave autoclave (RAMO system) specially designed by authors.
Lionel Combemale, Gilles Caboche, Didier Stuerga, Denis Chaumont   +3 more
openaire   +1 more source

High‐temperature stability in yttria‐stabilized zirconia

Heat Transfer—Asian Research, 2008
AbstractYttria‐stabilized zirconia has been studied as a candidate standard reference material for the determination of thermal properties. This study evaluated the high‐temperature stability, which is important for yttria‐stabilized zirconia to be used for a standard reference material, using a common material of fine ceramics, Referceram ZR1 ...
openaire   +1 more source

EXAFS Study of Yttria‐Stabilized Zirconia

Journal of the American Ceramic Society, 1986
The local structural environments of Y 3+ and Zr 4+ in 18 wt% Y 2 O 3 ‐stabilized zirconia were studied using extended X‐ray absorption fine structure spectroscopy over the ...
C. R. A. CATLOW, A. V. CHADWICK, G. N. GREAVES, L. M. MORONEY   +3 more
openaire   +1 more source

Layered structures of yttria-stabilized zirconia sandwiched between platinum/ yttria-stabilized zirconia composites

Journal of Applied Physics, 2001
Layered structures of cubic yttria-stabilized zirconia (YSZ) sandwiched between two layers of platinum/YSZ composites with the platinum concentration varying between 20 and 55 vol % were prepared. Large double-layer capacitances were obtained due to the presence of large three-dimensional electrode surface areas in the composite layers. The layers were
Hendriks, M.G.H.M., Heijman, M.J.G.W., van Zyl, W.E., ten Elshof, J.E.   +3 more
openaire   +1 more source

Uniform precipitation of Yttria-Stabilized zirconia

Refractories, 1995
An experiment on precipitation of zirconia by urea, urotropin, and ammonium hydroxide precipitants is described. The morphological and phase composition of the precipitated powders are investigated. It is shown that a buffer has a positive effect on reducing the agglomeration.
L. I. Podzorova, A. A. Il'icheva, N. A. Mikhailina, V. Ya. Shevchenko, V. B. Lazarev, A. D. Izotov   +5 more
openaire   +1 more source

Conduction mechanism in yttria stabilized zirconia

Physics Letters A, 1967
Abstract Analysis of potential distribution curves in 10 Y 2 O 3 : 90 ZrO 2 at 1380°C has shown an electronic hole contribution to the conductivity to have an oxygen partial pressure dependence of p O 2 . This is postulated to arise from the reaction 1 2 O 2 ( gas ) + □ O 2 → O 2- + 2 h .
R.E.W. Casselton, J.C. Scott
openaire   +1 more source

Thermal Expansion of Yttria‐Stabilized Zirconia

Journal of the American Ceramic Society, 1964
The thermal expansion of yttria-stabilized zirconia was measured in air and in a high-oxygen atmosphere. Room temperature-to-1000 deg C expansion measurements were made in an automatic recording dilatometer. Measurements above 1000 deg C were made in an oxide induction furnace and the change in length of the specimen was measured with telemicroscopes ...
T. H. NIELSEN, M. H. LEIPOLD
openaire   +1 more source

Preparation of nanocrystalline yttria-stabilized zirconia

Journal of Materials Research, 1995
Nanocrystalline powder with an average crystallite size of 8–12 nm, which was produced by a combustion synthesis process, was used to prepare dense, nanocrystalline articles. Green compacts of high green density were prepared by dry pressing and densified by a fast-firing process.
K.R. Venkatachari, Dai Huang, Steven P. Ostrander, Walter A. Schulze, Gregory C. Stangle   +4 more
openaire   +1 more source