Results 221 to 230 of about 55,297 (275)
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Alumina and Yttria Powder and Yttria Coatings Made by Ultrasonic Spray Pyrolysis
Chemical Vapor Deposition, 2013AbstractUltrasonic spray pyrolysis is used to produce metal oxide powders (alumina, yttria, and mixtures of these) from nitrate precursors at temperatures below 500 °C. Moreover, yttria powder coatings on soda‐lime glass and fused silica substrates are generated. The as‐prepared powders and coatings are examined using scanning electron microscopy (SEM),
Santos Abreu, Alexandre +5 more
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Dental Materials, 2019
OBJECTIVE To assess the influence of sandblasting conditions applied to conventional-type yttria-stabilized tetragonal zirconia polycrystal (Y-TZP) on surface roughness, phase transformation, and biaxial flexural strength.
M. Okada +4 more
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OBJECTIVE To assess the influence of sandblasting conditions applied to conventional-type yttria-stabilized tetragonal zirconia polycrystal (Y-TZP) on surface roughness, phase transformation, and biaxial flexural strength.
M. Okada +4 more
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Luminescent enhancement in europium-doped yttria nanotubes coated with yttria
Applied Physics Letters, 2006Europium-doped yttria nanotubes were coated with yttria by a simple two-step hydrothermal method, forming the Y2O3:Eu3+∕Y2O3 core-shell composite. Remarkable improvement of photoluminescence was observed in the core-shell composite under both violet and ultraviolet excitations.
Xue Bai +9 more
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Thermal expansion coefficient of yttria stabilized zirconia for various yttria contents
Solid State Ionics, 2005Abstract Thermal expansion coefficients of yttria stabilized zirconia(YSZ) with the Y 2 O 3 content of 3, 6, 8 and 10 mol% were measured using a push-rod type dilatometer in the temperature range from 103 to 876 K. The thermal expansion coefficient of YSZ decreased with the increase of the Y 2 O 3 content.
H HAYASHI +5 more
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ACS Applied Materials and Interfaces, 2019
Li-S batteries have tremendous application prospect due to high theoretical capacity and energy density, however its practical application is impeded by the severe shuttle effect and the slow electrochemical kinetics of polysulfides conversion.
P. Zeng +12 more
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Li-S batteries have tremendous application prospect due to high theoretical capacity and energy density, however its practical application is impeded by the severe shuttle effect and the slow electrochemical kinetics of polysulfides conversion.
P. Zeng +12 more
semanticscholar +1 more source
Journal of Power Sources, 2019
Gadolinium-doped ceria/yttria-stabilized zirconia bilayer electrolytes have received significant attention for use in solid oxide fuel cells since this electrolyte enables the use of a cobalt-containing cathode, which show a high performance at low ...
Chanhoi Kim +5 more
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Gadolinium-doped ceria/yttria-stabilized zirconia bilayer electrolytes have received significant attention for use in solid oxide fuel cells since this electrolyte enables the use of a cobalt-containing cathode, which show a high performance at low ...
Chanhoi Kim +5 more
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Microencapsulation of silicon nitride particles with yttria and yttria-alumina precursors
Journal of Materials Research, 1990Procedures are described to deposit uniform layers of yttria and yttria-alumina prccursors on fine powders and whiskers of silicon nitride. The coatings were produced by aging at elevated temperatures aqueous systems containing the silicon nitride core particles, yttrium and aluminum nitrates, and urea.
Ajay K. Garg, Lutgard C. De Jonghe
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Materials Research Express, 2019
Additive yttria in manufacturing glasses yieldsbetter shielding properties which can be used for solar cell covers. Selected ratios of yttria and other oxides have been added to borate-based glasses for the synthesizing via technique of melt quenching ...
Abdulrhman M. Alsharari +5 more
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Additive yttria in manufacturing glasses yieldsbetter shielding properties which can be used for solar cell covers. Selected ratios of yttria and other oxides have been added to borate-based glasses for the synthesizing via technique of melt quenching ...
Abdulrhman M. Alsharari +5 more
semanticscholar +1 more source
Solid State Ionics, 1992
Abstract The degree of solid solubility between yttria and calcia was measured, in the yttria-rich region, over the temperature range 1200 to 2000°C. X-ray diffraction results indicate that as much as 12.4 mol% calcia can be dissolved in yttria at 2000°C. No solid solution between the two oxides was observed below 1400°C.
J BROWN, T ETSELL
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Abstract The degree of solid solubility between yttria and calcia was measured, in the yttria-rich region, over the temperature range 1200 to 2000°C. X-ray diffraction results indicate that as much as 12.4 mol% calcia can be dissolved in yttria at 2000°C. No solid solution between the two oxides was observed below 1400°C.
J BROWN, T ETSELL
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Surface & Coatings Technology, 2019
Plasma nitriding of austenitic stainless steel may result in the formation of a nitrided layer, which is responsible for the increase in hardness, as well as wear and corrosion resistance of this material.
M.F.C. Ordoñez +8 more
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Plasma nitriding of austenitic stainless steel may result in the formation of a nitrided layer, which is responsible for the increase in hardness, as well as wear and corrosion resistance of this material.
M.F.C. Ordoñez +8 more
semanticscholar +1 more source