Results 271 to 280 of about 547,292 (342)

Microstructural, mechanical and wear behavior of electroless assisted silver coated Al2O3–Cu nanocomposites

Materials Chemistry and Physics, 2021
Electro-less deposition synthesized Al2O3 nanoparticles coated Ag with different weight percent (0, 2.5, 5, 7.5 and 10) were mixed with pure Cu powder to manufacture Cu–Al2O3 nanocomposite through powder metallurgy route.
A. Sadoun, A. Meselhy, A. Abdallah
semanticscholar   +1 more source

Effective fracture toughness in Al2O3–Al2O3/ZrO2 laminates

Journal of the European Ceramic Society, 2007
During the processing of laminar ceramics, biaxial residual stresses can arise due to the thermal mismatch between different layers. For ceramic multilayers, the beneficial consequences of compressive stresses at the surface are well known: increase in strength, apparent toughness and reliability. Nevertheless, the resulting tensile stresses may induce
T Lube, J Pascual, F Chalvet, G De Portu
openaire   +2 more sources

Dry reforming of methane over La2O2CO3-modified Ni/Al2O3 catalysts with moderate metal support interaction

, 2020
The modulation of the interaction between the active metal and the underlying support material plays a key role and remains a challenge in many important catalytic reactions. This paper describes a new method for the modification of Ni/Al2O3 by La2O2CO3,
Kang Li, Chunlei Pei, Xinyu Li, Sai Chen, Xianhua Zhang, Ruiming Liu, Jinlong Gong   +6 more
semanticscholar   +1 more source

Sulfuration of Pt/Al2O3, Pt−Re/Al2O3 and Pt−Ir/Al2O3 catalysts

Reaction Kinetics and Catalysis Letters, 1982
Three reforming catalysts Pt/Al2O3, Pt−Ir/Al2O3 and Pt−Re/Al2O3 have been sulfurated by H2S and tested by their activities in benzene hydrogenation. By treatment at 500°C under hydrogen flow only a part of the initial activity of the non-sulfurated catalyst is retained. So only a part of the adsorbed sulfur is easily removed in these conditions.
C. Apesteguia, J. Barbier
openaire   +1 more source

Efficient degradation of sulfamethoxazole by the CuO@Al2O3 (EPC) coupled PMS system: Optimization, degradation pathways and toxicity evaluation

Chemical Engineering Journal, 2019
The CuO@Al2O3 (EPC) (prepared by an electroless plating and calcining method) was used to activate peroxymonosulfate (PMS) for advanced oxidation of sulfamethoxazole (SMX) in deionized water, and effects of three key parameters of its all parameters (i.e.
Jianfei Yan, Jun Li, Jiali Peng, Heng Zhang, Yunhong Zhang, B. Lai   +5 more
semanticscholar   +1 more source

Methane Combustion over Pd/Al2O3 Catalysts in the Presence of Water: Effects of Pd Particle Size and Alumina Crystalline Phase

, 2020
The effects of the Pd particle size and the Al2O3 crystalline phase of Pd/Al2O3 catalysts on the CH4 combustion in the presence of H2O were investigated.
Kazumasa Murata, Junya Ohyama, Yuta Yamamoto, S. Arai, A. Satsuma   +4 more
semanticscholar   +1 more source

Plasma spraying of Al2O3 and Al2O3Y2O3

Thin Solid Films, 1976
Abstract A microstructural study has been carried out of plasma-sprayed Al 2 O 3 and mixed and sintered Al 2 O 3 Y 2 O 3 . In order to ascertain the degree of metastability achieved by plasma spraying, these results are compared with a similar experiment utilizing a CO 2 laser for melting and the hammer-and-anvil technique for quenching of the ...
Volker Wilms, Herbert Herman
openaire   +1 more source

High solid loading, low viscosity photosensitive Al2O3 slurry for stereolithography based additive manufacturing

Ceramics International, 2019
Photosensitive Al2O3-resin slurries with high solid loading, low viscosity used for stereolithography based additive manufacturing were prepared in this paper.
Keqiang Zhang, Chen Xie, G. Wang, R. He, Guojiao Ding, Min Wang, Dawei Dai, D. Fang   +7 more
semanticscholar   +1 more source

Wear behaviour of Al2O3–Mo and Al2O3–Nb composites

Wear, 2007
The wear behaviour of two Al2O3-Mo and two Al2O3-Nb particulate composites with different Mo particle size and Nb contents, respectively, obtained by hot-pressing, was evaluated. The inverted pin-on-disc tests were performed by making ceramic pins slide against WC discs at different loads with a constant sliding speed and sliding distance.
G de Portu, S Guicciardi, C Melandri, F Monteverde   +3 more
openaire   +2 more sources

Enhanced low-temperature performance of CO2 methanation over mesoporous Ni/Al2O3-ZrO2 catalysts

Applied Catalysis B: Environmental, 2019
Converting carbon dioxide to value-added chemicals has been attracted much attention, whereas direct hydrogenation of CO2 to synthetic natural gas (SNG) at a lower temperature remains a big challenge.
Jiang-Jen Lin, Caiping Ma, Qiong Wang, Yanfei Xu, G. Ma, Jie Wang, Hongtao Wang, Chenglong Dong, Chenghua Zhang, M. Ding   +9 more
semanticscholar   +1 more source