Results 31 to 40 of about 28,015 (304)
How do the grains slide in fine-grained zirconia polycrystals at high temperature? [PDF]
Appl. Phys. Lett. 91, 121904 (2007), 2007 Degradation of mechanical properties of zirconia polycrystals is hardly discussed in terms of solution-precipitation grain-boundary sliding due to experimental controversies over imaging of intergranular amorphous phases at high and room temperatures.
arxiv +1 more source
Densification behavior of yttria-stabilized zirconia powders for solid oxide fuel cell electrolytes
Journal of Advanced Ceramics, 2018 Yttria-stabilized zirconia (YSZ) is the most common electrolyte material for solid oxide fuel cells. Herein, we conducted a comparative study on the densification behavior of three different kinds of commercial 8 mol% YSZ powders: (i) TZ-8Y (Tosoh, Japan)
Dhruba Panthi, N. Hedayat, Yanhai Du
semanticscholar +1 more source
Substoichiometric ultrathin zirconia films cause strong metal-support interaction [PDF]
Journal of Materials Chemistry A 7, 24837-24846 (2019), 2019 The strong metal-support interaction (SMSI) leads to substantial changes of the properties of an oxide-supported catalyst after annealing under reducing conditions. The common explanation is the formation of heavily reduced, ultrathin oxide films covering metal particles.
arxiv +1 more source
Flash microwave pressing of zirconia [PDF]
Journal of the American Ceramic Society, Wiley, 2020, 2020 Microwave Pressing is a promising way to reduce microwave sintering temperatures and stabilize microwave powder materials processing. A multi-physics simulation was conducted of the regulated pressure-assisted microwave cavity. This simulation took into consideration resonance phenomena and the nonlinear temperature-dependent material parameters of ...
arxiv +1 more source
C, 2023 For the direct reduction of CO2 and H2O in solid oxide electrolysis cells (SOECs) with cermet electrodes toward methane, a fundamental understanding of the role of elemental carbon as a key intermediate within the reaction pathway is of eminent interest.
Christoph W. Thurner +14 more
doaj +1 more source
Low-temperature ageing of zirconia-toughened alumina ceramics and its implication in biomedical implants [PDF]
Journal of the European Ceramic Society, Volume 23, Issue 15,
2003, Pages 2975-2982 Journal of the European Ceramic Society, Volume 23,
Issue 15, 2003, Pages 2975-2982, 2018 Changes in crystalline phases resulting from low-temperature ageing of different yttria doped and non-doped zirconia-toughened alumina composites and nanocomposites were investigated under controlled humidity and temperature conditions in autoclave. A classical powder mixing processing route and a new modified colloidal processing route were used to ...
arxiv +1 more source
Potential Tribological and Antibacterial Benefits of Pulsed Laser Deposited Zirconia Thin Film on Ti6Al4V Bio-alloy [PDF]
, 2022 Demand for artificial body implants has been on the rise over the years. However, wear and bacterial infection are identified as two major reasons that can lead to inflammation and implant failure. In this communication, the advantages of pulsed laser deposited zirconia thin film on Ti6Al4V bio-alloy at room temperature and at an elevated substrate ...
arxiv +1 more source
Revisiting the Temperature Dependent Ionic Conductivity of Yttria Stabilized Zirconia (YSZ)
, 2017 The temperature dependent conductivity of yttria stabilized zirconia (YSZ) exhibits a bending in Arrhenius’ plots which is frequently discussedintermsoffreeandassociatedoxygenvacancies.However ...
C. Ahamer +3 more
semanticscholar +1 more source
SN Applied Sciences, 2023 In this investigation, surface modification toughening of partially stabilized zirconia ceramics, by sub-eutectoid solution annealing, has been performed.
M. El-Sayed Ali +4 more
doaj +1 more source
Characterizations of Synthetic 8mol% YSZ with Comparison to 3mol %YSZ for HT-SOFC [PDF]
Engineering and Technology Journal, 2020 In this work, Yttria (Y2O3) was successfully doped into tetragonal 3mol% yttria stabilized Zirconia (3YSZ) by high energy-mechanical milling to synthesize 8mol% yttria stabilized Zirconia (8YSZ) used as an electrolyte for high temperature solid oxide ...
Abeer Al-Attar +2 more
doaj +1 more source