Results 81 to 90 of about 28,015 (304)
High temperature deformability of ductile flash-sintered ceramics via in-situ compression
Nature Communications, 2018 Flash sintering allows for rapid ceramic processing, but the mechanical behavior of such ceramics remains poorly understood. Here, the authors compress micropillars of yttria stabilized zirconia to show flash sintering promotes outstanding plasticity.
Jaehun Cho +11 more
doaj +1 more source
On the Onset of the Flash Transition in Single Crystals of Cubic Zirconia [PDF]
arXiv, 2017 The reported onset temperatures of the flash transition in cubic zirconia single crystals have been analyzed in the present note. The analysis for high-temperature low-field data gives an activation energy of 0.99 eV for the charge transport, which agrees well with the measured ionic conductivity data in cubic zirconia single crystal.
arxiv
Contact damage in an yttria stabilized zirconia: Implications
Journal of Materials Science: Materials in Medicine, 2007 This paper presents the results of a combined experimental and computational study of contact damage in a 3 mole% yttria partially stabilized zirconia (3-YSZ) that is relevant to hip implants and dental restorations. Contact-induced loading in real applications is idealized using Hertzian contact model to explain plasticity phenomena and failure ...
J Zhou +4 more
openaire +3 more sources
Carbon Energy, EarlyView.Co enhances the ORR activity while Fe facilitates the cathode/electrolyte interfacial proton conduction. Below 650°C, the H‐SOFC performance is limited by ORR activity so that a high Co/Fe ratio is suggested, whereas above 650°C, a low Co/Fe ratio is favored as the limiting factor shifts to proton conduction.
Min‐Rui Gao +5 more
wiley +1 more source
Properties of a Pressureless Sintered 2Y-TZP Material Combining High Strength and Toughness
CeramicsYttria stabilized zirconia materials are frequently used in mechanical engineering and biomedical applications. Demanding loading conditions require materials combining a high level of strength and fracture toughness. A ready-to-press alumina doped 2 mol%
Frank Kern, Bettina Osswald
doaj +1 more source
Damage tolerance of six dental zirconias with different translucencies
Biomaterial Investigations in Dentistry, 2020 Purpose High-translucent dental zirconia has been introduced as a suitable material for anterior monolithic restorations. The material composition differs from traditional 3Y-TZP both with regard to yttria content and grain size.
Cathrine Å. Karlsen +2 more
doaj +1 more source
Polymer Composites, EarlyView.PMMA‐SrTiO3/Y2O3 composite with improved mechanical properties. Abstract This study presented the use of SrTiO3/Y2O3 nanoparticles for the reinforcement of dental poly(methyl methacrylate) (PMMA) to enhance its mechanical properties important for everyday use of denture base materials. The average crystallite size of prepared nanoparticles was 19.9 nm.
Houda Taher Elhmali +6 more
wiley +1 more source
Two unique measurements related to flash experiments with yttria‐stabilized zirconia
, 2017 We report two measurements related to flash experiments. One is concerned with electroluminescence in yttria-stabilized zirconia; in this case we have measured the broadening of the (UV) absorption edge in single crystal cubic zirconia below the ...
D. Yadav, R. Raj
semanticscholar +1 more source
BMC Oral HealthBackground Recent forms of translucent zirconia material have been developed, offering a wide range of options and varieties for enhancing aesthetics, making it a preferred choice in the field of prosthetic dentistry.
Mahinour Yousry +3 more
doaj +1 more source
First Principles Study of Carbon Monoxide Adsorption on Zirconia-Supported Copper [PDF]
arXiv, 1999 We have calculated the adsorption energy of carbon monoxide on a monolayer of copper adsorbed on the (111) face of cubic zirconia. We investigate the structural parameters of three phases of bulk zirconia (cubic, tetragonal, and monoclinic) and find excellent agreement with experiment.
arxiv