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- 108Chemical and Materials Engineering, Department of/Research Articles and Materials (Chemical and Materials Engineering)
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- 14Rapid Solidification
- 12Impulse Atomization
- 11Undercooling
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- 7Atomization
- 7Microstructure
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Evaporation-triggered microdroplet nucleation and the four life phases of an evaporating Ouzo drop
Download2016-01-01
Tan, Huanshu, Diddens, Christian, Ly, Pengyu, Lohse, Detlef
Evaporating liquid droplets are omnipresent in nature and technology, such as in inkjet printing, coating, deposition of materials, medical diagnostics, agriculture, the food industry, cosmetics, or spills of liquids. Whereas the evaporation of pure liquids, liquids with dispersed particles, or...
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Microstructure and Mechanical Characterization of Rapidly Solidified Cr-C Tool Steel - Annealing Effects
Download2016-01-01
Delshad Khatibi, P., Phillion, A.B., Henein, H.
The effect of isochronal annealing on D2 tool steel powder, rapidly solidified via both Impulse Atomization and Water Atomization, has been evaluated using high-resolution scanning electron microscopy and Vickers microhardness. The amount of supersaturation of the alloying elements inside the...
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Efficient photoinduced charge transfer in chemically-linked organic-metal Ag-P3HT nanocomposites
Download2016-01-01
Feng, Lin, Chen, Ming, Zheng, Fei, Niu, Meng-Si, Zhang, Xuehua, Hao, Xiao-Tao
A novel nanocomposite of P3HT and Ag nanoparticles (Ag-P3HT) has been synthesized by laser ablation. The fluorescence wavelength of the nanocomposite can be tuned by varying the ablation duration. The steady-state emission maximum at 580 nm for pristine P3HT shows significant blueshift to...
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2016-01-01
Bogno, A.-A., Riveros, C., Henein, H., Li, D.
This paper investigates amorphous phase formation and rapid solidification characteristics of a CoCr alloy. High cooling rate and high undercooling-induced rapid solidification of the alloy was achieved by impulse atomization in helium atmosphere. Two atomization experiments were carried out to...
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Influence of Cold-Wire Tandem Submerged Arc Welding Parameters on Weld Geometry and Microhardness of Microalloyed Pipeline Steels
Download2016-01-01
Mohammadijoo, M., Henein, H., Collins, L., Ivey, D.G.
Tandem submerged arc welding with an additional cold wire (CWTSAW) is being developed for pipeline manufacturing to improve productivity in terms of deposition rate and travel speed of welding. An appropriate understanding of the welding conditions to guarantee requisite weld geometry, appearance...
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Estimation of Droplet Size and Temperature at which Solidification starts in a Drop Tube-Impulse System.
Download2016-01-01
Delshad Khatibi, P., Henein, H.
D2 tool steel powders were produced using a drop tube-impulse atomization technique. In order to measure the radiant energy and droplet size of atomized D2 steel droplets, DPV-2000 (Tecnar Automation Ltée, St. Hubert Quebec, Canada) was utilized. In-situ velocity and droplet size of the atomized...
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Demulsifier Performance in Diluted Bitumen De-watering: Effects of Mixing and Demulsifier Dosage
Demulsifier Performance in Diluted Bitumen De-watering: Effects of Mixing and Demulsifier Dosage
Download2016-10-02
Bhattacharya, Sujit, Arora, Nitin, Ng, Samson, Chong, Jeng Y., Kresta, Suzanne M., Machado, Marcio B.
Mixing conditions were explored as a possible avenue for improvement of demulsifier performance in solvent diluted bitumen de-watering process. The effects of demulsifier bulk concentration, demulsifier injection concentration and mixing energy on water and solids removal from the oil phase were...
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2016-01-01
Bedel, M., Reinhart, G., Bogno, A.-A., Gandin, Ch.-A., Jacomet, S., Boller, E., Nguyen-Thi, H., Henein, H.
The Impulse Atomization process developed at the University of Alberta (Canada) enables metallic powders to be solidified with well controlled process parameters. The inner microstructure of several droplets of Al-4.5wt.%Cu alloy produced by this technique has been investigated by using both...