Results 261 to 270 of about 75,402 (311)

Tribological behavior of AZ31/ZrO2 surface nanocomposites developed by friction stir processing

, 2020
The present study focused on the poor wear resistance of the AZ31 magnesium alloy and improving its tribological applications. Surface nanocomposites reinforced with nano-sized ZrO2 particles on the AZ31 magnesium alloy substrate were fabricated by ...
Y. Mazaheri, Mohammad Mahdi Jalilvand, A. Heidarpour, A. Jahani   +3 more
semanticscholar   +1 more source

Morphology of tetragonal ZrO2 in TiO partially stabilized ZrO2

Journal of Materials Science Letters, 1989
Etude au microscope electronique en transmission de la morphologie de disques de TiO-PSZ frittes sous ...
C. L. Lin, P. Shen, D. Gan
openaire   +1 more source

Tuning electron density of metal nickel by support defects in Ni/ZrO2 for selective hydrogenation of fatty acids to alkanes and alcohols

Applied Catalysis B: Environmental, 2019
Catalysts with tunable activity and selectivity to targeted products are highly demanded when using complex biomass-based resources for the production of fuels and chemicals.
J. Ni, W. Leng, J. Mao, Jianguo Wang, Jianyi Lin, Dahao Jiang, Xiaonian Li   +6 more
semanticscholar   +1 more source

Role of Calcination Temperatures of ZrO2 Support on Methanol Synthesis from CO2 Hydrogenation at High Reaction Temperatures over ZnOx/ZrO2 Catalysts

, 2020
Methanol synthesis from CO2 hydrogenation at high temperatures was investigated over ZnOx/ZrO2 catalysts to illustrate the role of calcination temperatures (600–1000 °C) of the ZrO2 support.
Chunyanuch Temvuttirojn, Y. Poo‐arporn, N. Chanlek, C. Cheng, C. Chong, J. Limtrakul, Thongthai Witoon   +6 more
semanticscholar   +1 more source

Thermoluminescence of ZrO2

The Journal of Chemical Physics, 1969
The thermoluminescence of ZrO2 samples, both pure and doped with titanium, irradiated with low doses of x rays has been studied. The glow curve of ZrO2(Ti) exhibits, in the temperature range 100° to 350°K, four main peaks all having the same spectral composition.
C. Bettinali, G. Ferraresso, J. W. Manconi   +2 more
openaire   +1 more source

Sorption kinetics of cesium on ZrO2 and ZrO2-SiO2-TiO2 microspheres

Radiochimica Acta, 2010
ZrO 2 and ZrO 2 -SiO 2 -TiO 2 (with 1: 1: 1 mol ratio) microspheres have been prepared by the sol-gel method and characterized to study the sorption kinetics of cesium. The effect of pH on the adsorption capacity was determined for both type sorbents and the maximum adsorption percentage of cesium was observed at pH 10.
Tel H., Altaş Y., Giir F., Ugur A.
openaire   +2 more sources

Synthesis of highly active biocompatible ZrO2 nanorods using a bioextract

, 2020
The use of organic–inorganic metal oxide products in biomedical applications has emerged as the most expanding field. To have long-lasting stability and improved reliability, a biomaterial must be specially chosen and have bioactivity and mechanical ...
M. Isacfranklin, Turki M. Dawoud, Fuad Ameen, G. Ravi, R. Yuvakkumar, Ponnuchamy Kumar, S. Hong, D. Velauthapillai, B. Saravanakumar   +8 more
semanticscholar   +1 more source

Effect of hydrogen treatments on ZrO2 and Pt/ZrO2 catalysts

Catalysis Letters, 1994
ZrO2 and Pt/ZrO2 catalysts have been investigated by TPR, hydrogen chemisorption, TPDH and in the conversion ofn-hexane. At high temperature, ZrO2 takes up hydrogen. High temperature hydrogen treatment is a precondition of the catalytic activity in then-hexane conversion.
D. L. Hoang, H. Lieske
openaire   +1 more source

Stabilization of the cubic ZrO2 phase in the system ZrO2-MgO

Thermochimica Acta, 1990
Abstract By progressive calcination of coprecipitated gels with a molar Zr-Mg ratio of 1:1, at different digestion times, it is found that, at temperatures of −700 °C, a cubic solid solution plus MgO is formed. This solid solution is transformed to a tetragonal structure at ~ 950 °C.
M.J. Martinez-Lope, M.E. Garcia-Clavel, J. Zamora   +2 more
openaire   +1 more source

Effect of ZrO2 nanoparticles addition to PEO coatings on Ti–6Al–4V substrate: Microstructural analysis, corrosion behavior and antibacterial effect of coatings in Hank's physiological solution

, 2020
In this study, plasma electrolyte oxidation (PEO) method was employed to modify the surface of Ti–6Al–4V. Effects of different concentrations of ZrO2 nanoparticles (0, 1, 3 and 5 g/l) into a phosphate-based electrolyte on the morphology, wettability ...
E. Nikoomanzari, A. Fattah‐alhosseini, Mohammad Reza Pajohi Alamoti, M. Keshavarz   +3 more
semanticscholar   +1 more source