Results 71 to 80 of about 18,795 (238)

Dense zig-zag microstructures in YSZ thin films by pulsed laser deposition

APL Materials, 2015
The very brittle oxygen ion conductor yttria stabilized zirconia (YSZ) is a typical solid electrolyte for miniaturized thin film fuel cells. In order to decrease the fuel cell operating temperature, the thickness of yttria stabilized zirconia thin films ...
Dieter Stender, Nina Schäuble, Anke Weidenkaff, Alex Montagne, Rudy Ghisleni, Johann Michler, Christof W. Schneider, Alexander Wokaun, Thomas Lippert   +8 more
doaj   +1 more source

Doping Calcia and Yttria into Zirconia Obtained from by Product of Tin Concentrator to Improve its Ionic Conductivity

Journal of Mathematical and Fundamental Sciences, 2013
Zirconia has been prepared from Zircon concentrate by caustic fusion methods. Zircon is a by product from tin ore concentration plant at Bangka island of Indonesia.
Fitria Rahmawati, Bambang Prijamboedi, Syoni Soepriyanto, Ismunandar Ismu   +3 more
doaj   +1 more source

Electroconductive MXene‐Thin‐Film‐Composite Membranes for Coupled Osmotic Concentration and PFAS Mineralization

Small, EarlyView.
An electroconductive MXene‐TFC membrane integrates osmotic dewatering with anodic oxidation to concentrate and mineralize PFOA at the membrane interface. The coupled AO‐PRO configuration accelerates degradation kinetics, achieves 99% rejection and up to 93% TOC removal, and lowers specific energy demand, offering a compact route for PFAS destruction ...
Afrouz Yousefi, Pooria Karami, Vahid Rad, Amir Aghaei, Mojtaba Mohseni, Lingling Yang, Masoud Soroush, Matthias Wessling, Mohamed Gamal El‐Din, Mohtada Sadrzadeh   +9 more
wiley   +1 more source

Effect of Yttrium and Yttria Addition in Self-Passivating WCr SMART Material for First-Wall Application in a Fusion Power Plant

Metals
The self-passivating yttrium-containing WCr alloy has been developed and researched as a potential plasma-facing armour material for fusion power plants.
Jie Chen, Elena Tejado, Marcin Rasiński, Andrey Litnovsky, Duc Nguyen-Manh, Eric Prestat, Tamsin Whitfield, Jose Ygnacio Pastor, Martin Bram, Jan Willem Coenen, Christian Linsmeier, Jesus Gonzalez-Julian   +11 more
doaj   +1 more source

A Comprehensive Multimodal Study of La0.45Sr0.45TiO3 Structure as Matrix for the Exsolution Process: From the Average to the Local Scale

Small, EarlyView.
We present a multimodal, multiscale study of La0.45Sr0.45TiO3 combining experimental and computational approaches to probe its local structure. The results reveal A‐site ordering along [001] and loss of centrosymmetry driven by electrostatic effects.
Marco Pinna, Jonathan Cavazzani, Marta Mirolo, Gabriel J. Cuello, Nader Barhouma, Andrea Trapletti, Carlo Castellano, Fausto Cargnoni, Mario I. Trioni, Antonella Glisenti, Marco Scavini   +10 more
wiley   +1 more source

Influence of Yttria concentration upon Electrical Properties and Susceptibility to Ageing of Yttria-stabilised Zirconia

, 1998
The most widely used electrolyte in solid oxide fuel cell (SOFC) devices is 8 mol% yttria-stablished zirconia (YSZ). Recent investigations have questioned the long term stability of this material at both the SOFC operating temperature of 1000 degrees C ...
Gibson, IR, Dransfield, GP, Irvine, John Thomas Sirr   +2 more
core   +2 more sources

HARDNESS AND FRATURE TOUGHNE OF PLASMA SPRAYED ZIRCONIA-CERIA-YTTRIA THERMAL BARRIER COATINGS

Iraqi Journal for Mechanical and Materials Engineering, 2018
Several studies have been made during the recent years to evaluate the plasma sprayed yttria partially stabilized zirconia thermal barrier coatings but less attention were undertaken on ceria-yttria stabilized zirconia.
Mohammed J Kadhim, Mohammed H Hafiz, Maryam A Ali Bash   +2 more
doaj   +1 more source

Effect of Cigarette Smoking on the Surface Roughness, Color, and Translucency of Zirconia Produced by Additive and Subtractive Manufacturing

Journal of Esthetic and Restorative Dentistry, EarlyView.
ABSTRACT Objective To compare the surface roughness, color stability, and translucency of zirconia produced by additive manufacturing (AM) and subtractive manufacturing (SM) after exposure to cigarette smoking. Materials and Methods A total of 60 disc‐shaped specimens were fabricated from 2 methods: AM (INNI Cera BCM W500/1000) and SM (VITA YZ T).
Bengisu Mahmutluoglu, Nazli Aydin, Koray Soygun   +2 more
wiley   +1 more source

Ultra‐High‐Speed Sintering of 3.5Y‐TZP Zirconia: Time Reduction Without Compromising Translucency

Journal of Esthetic and Restorative Dentistry, EarlyView.
ABSTRACT Objectives To assess, firstly, the impact of three sintering speeds on translucency and grain size of 3.5Y‐TZP zirconia (Katana HT) across clinically relevant thicknesses, and secondly, the effect of thermocycling on translucency. Materials and Methods Disc specimens were fabricated at six thicknesses (0.7–2.0 mm) and sintered using SLOW (7 h),
Tatiana Roman, Hamdi Jmal, Teissir Ben Ammar , Adrien Greffet, Marc Lenertz, Olivier Etienne   +5 more
wiley   +1 more source

Effect of Glazing Dwell Time and Cooling Duration on Flexural Strength and Surface Microhardness of 3 mol% Yttria‐Stabilized Tetragonal Zirconia: An In Vitro Study

Journal of Esthetic and Restorative Dentistry, EarlyView.
ABSTRACT Objective To evaluate the effect of glazing dwell time and cooling duration on the flexural strength and surface microhardness of high‐translucency 3 mol% yttria‐stabilized tetragonal zirconia polycrystal (3Y‐TZP). Materials and Methods Total of 108 rectangular zirconia specimens (20 × 4 × 2 mm) were fabricated from preshaded monolithic blocks
Shubha Sarmalkar, Aradhana Nagarsekar, Meena A. Aras, Umesh Y. Pai, Ridhima Gaunkar, Prajakta R. Volvaikar   +5 more
wiley   +1 more source