Results 21 to 30 of about 71,542 (311)
A role of electrons in zirconium oxidation
EPJ Nuclear Sciences & Technologies, 2017 Growing the oxide scale on the zirconium cladding of fuel elements in pressured-water reactors (PWR) is caused by the current of oxygen anions off the waterside to the metal through the layer of zirconia and by the strictly equal inverse electronic ...
Alekseev Pavel N. +1 more
doaj +1 more source
Role of promoters over yttria‐zirconia supported Ni catalyst for dry reforming of methane
Energy Science & Engineering, 2023 Dry reforming of methane (DRM) bears great hope for the catalytic community as well as environmentalists for its potential to convert two greenhouse gases, CH4 and CO2, together into synthetic feedstock “syngas”.
Anis H. Fakeeha +7 more
doaj +1 more source
Zirconia as a support for catalysts: influence of additives on the thermal stability of the porous texture of monoclinic zirconia [PDF]
, 1991 A single-phase monoclinic zirconia (the thermodynamically stable modification up to a temperature of 1170°C), having a specific surface area of 67 m2g¿1 and a well-developed mesoporous texture, has been prepared by gel-precipitation followed by ...
Burggraaf, A.J. +8 more
core +4 more sources
Transverse and Impact Strength of Poly Methyl Methacrylate-Zirconium Oxide Nanocomposite Denture Base Material [PDF]
Al-Rafidain Dental Journal, 2023 Aims: this study aims to evaluate the effect of adding two concentrations of zirconium oxide nanoparticles (1.0% and 2.0%) to "heat-cured PMMA" in order to improve its mechanical properties such as transverse strength and impact strength.
Yazan Hussam Al-Deen Al-Flayeh +1 more
doaj +1 more source
Carbides and Nitrides of Zirconium and Hafnium. [PDF]
, 2019 Among transition metal carbides and nitrides, zirconium, and hafnium compounds are the most stable and have the highest melting temperatures. Here we review published data on phases and phase equilibria in Hf-Zr-C-N-O system, from experiment and ab ...
Hong, Qi-Jun +3 more
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Oxygen Diffusion in Oxide Film and Matrix of Zirconium Alloys
Yuanzineng kexue jishuThe diffusion coefficient of oxygen in zirconium alloy oxide film and matrix is an important parameter in corrosion kinetics of zirconium alloys. At present, there are some reports on the diffusion coefficient of oxygen in zirconium and oxide film, but ...
ZHANG Junsong, WU Jun, LIAO Jingjing, WEI Tianguo, LONG Chongsheng
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Explorable and economically attractive mineral deposits in the Siberian and Far Eastern Federal Districts of Russia [PDF]
, 2018 Purpose. Selection of the most explorable mineral deposits in the Siberian and Far Eastern Federal Districts of the Russian Federation as investment projects. Methods.
Boyarko, G
core +1 more source
Nuclear Materials and Energy, 2018 : A tritium production method using a high-temperature gas-cooled reactor loaded with lithium compound particles has been proposed for steadily starting up and stably operating a fusion reactor.
J. Izumino +3 more
doaj +1 more source
Zaštita Materijala, 2023 Zirconium dioxide ZrO2 is used as a basic material for thermal barriers and as a biomaterial for manufacturing parts for hip implants in orthopedic surgery and in dentistry for making crowns. Use of ZrO2 ceramics as an insulating material and biomaterial
Mihailo Mrdak +2 more
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STUDIES IN ZIRCONIUM OXIDATION. [PDF]
, 1966 Study provides insight into the oxidation mechanism of zirconium by combining electrical measurements with oxidation data. The measurement of electrical potential across growing scale on zirconium and the determination of conventional weight-change oxidation data were carried out at 550, 700, and 800 degrees C.
Levitan, J. +2 more
openaire +2 more sources