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Full-Text Articles in Mechanical Engineering
Tuning Of The Size And The Lattice Parameter Of Ion-Beam Synthesized Pb Nanoparticles Embedded In Si, Huan Wang, J. Cuppens, E. Biermans, S. Bals, Lucia Fernandez-Ballester, K. O. Kvashnina, W. Bras, M. J. Van Bael, K. Temst, A. Vantomme
Tuning Of The Size And The Lattice Parameter Of Ion-Beam Synthesized Pb Nanoparticles Embedded In Si, Huan Wang, J. Cuppens, E. Biermans, S. Bals, Lucia Fernandez-Ballester, K. O. Kvashnina, W. Bras, M. J. Van Bael, K. Temst, A. Vantomme
Department of Engineering Mechanics: Faculty Publications
The size and lattice constant evolution of Pb nanoparticles (NPs) synthesized by high fluence implantation in crystalline Si have been studied with a variety of experimental techniques. Results obtained from small-angle x-ray scattering showed that the Pb NPs grow with increasing implantation fluence and annealing duration. The theory of NP growth kinetics can be applied to qualitatively explain the size evolution of the Pb NPs during the implantation and annealing processes. Moreover, the lattice constant of the Pb NPs was evaluated by conventional x-ray diffraction. The lattice dilatation was observed to decrease with increasing size of the Pb NPs. Such …
Experimental Testing And Finite-Element Modeling To Evaluate The Effects Of Aggregate Angularity On Bituminous Mixture Performance, Leonardo T. Souza, Yong-Rak Kim, Flavio V. Souza, Leandro S. Castro
Experimental Testing And Finite-Element Modeling To Evaluate The Effects Of Aggregate Angularity On Bituminous Mixture Performance, Leonardo T. Souza, Yong-Rak Kim, Flavio V. Souza, Leandro S. Castro
Department of Engineering Mechanics: Faculty Publications
This study evaluates the effects of aggregate angularity in bituminous mixtures. Previous studies have predominantly focused on the effects of aggregate angularity on the resistance to permanent deformation, while little work has investigated the role of aggregate angularity related to mixture volumetrics and fatigue fracture performance. To investigate the effect of aggregate angularity on mixture performance and characteristics, five mixes with different combinations of coarse and fine aggregate angularity are evaluated by performing the uniaxial static creep test and the indirect tensile fracture energy test. The asphalt pavement analyzer test is also performed with five-year field project mixtures. Fracture energy …