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Semi-solid casting process Semi-solid forming (SSF) also known as Semi-solid metallurgy (SSM) is a forming technique invented by David Spencer in 1971 as a part of his doctoral thesis [23]. Semisolid forming combines the processes of casting, forming and extrusion....
Microstructure and Magnetic Abstract Ni-P alloys were prepared by electrodeposition on a copper substrate at different plating conditions (applied potential and deposition time). The morphology, composition, microstructure, structure, and magnetic properties of the films were investigated by scanning electron microscopy,...
Introduction to tool steels Tool steels are used for cutting, forming, or shaping a material into a part or component adjusted to a specified application (Arai et al. 1991). Cutting tool steels show high strength and wear resistance but they...
Étude de photocatalyseurs en couches minces de TiO2 pour la production d’H2 State of the Art, problematics and objectives The energetic demand and climate change Energy crises in the latter part of the 20th century, as well as the current...
Télécharger le fichier original (Mémoire de fin d'études) Le critère de Mohr-Coulomb Bien que la physique derrière le critère de Mohr-Coulomb reste mal connue, il permet d’expliquer de façon convaincante, bien qu’imparfaite, les observations faites en méca-niques des solides. Le...
Contribution à l’intégration 3D de composants passifs pour l’électronique de puissance The application target: decoupling of DC-to-DC power converters All power electronics converter topologies are based on the association of switching cells using power switches from 2 to 2n (two-levels...
Structural characterization and electrochemical hydrogen storage properties of Mg2Ni1−xMnx Introduction Mg-based (Mg2Ni-type) hydrogen storage alloys are considered to be promising negative electrode materials for nickelmetal hydride (Ni-MH) batteries because of their low cost, light weight, rich mineral resources and high...
Déformation et anisotropie du manteau lithosphérique sous un rift mature Le rift Est-Africain est l’un des principaux rifts actifs de la planète. Il offre la possibilité d’étudier le rifting à différents stades de maturité, de l’initiation jusqu’à l’accrétion océanique. Si...
Aluminum-Silicon Casting Alloys Aluminum casting alloys with high content of silicon are one of the most widely used alloys in the automotive, aerospace and electronics industries. Due to their light weight, low thermal expansion coefficient, high corrosion resistant and superior...
Shape memory alloys (SMAs) have been the focus of extensive research in the past few decades. The unique properties of SMAs have made them a suitable choice in a wide variety of industries, including aerospace, automotive, robotics, oil and gas,...