In this article, we propose a new packaging technology enabling the development of high-performance power module for harsh environments. This approach is based on use selective laser melting (SLM) technique in order to directly print metal heat sinks backside metallized substrate. explore viability method, assembled parts were evaluated thoroughly after manufacturing process. Moreover, their ro...

Publisher UP GRADE is published on behalf of CEPIS (Council of European Professional Informatics Societies, ) by NOVÁTICA , journal of the Spanish CEPIS society ATI (Asociación de Técnicos de Informática ). UP GRADE is also published in Spanish (full issue printed, some articles online) by NOVÁTICA, and in Italian (abstract...

The objective of this work is to investigate various silicon-metal eutectic systems that selectively retain detrimental impurities, such as Ni, Co, Fe, Cr, in the melt so that silicon may be purified. We studied possible interactions in the melt and in the silicon crystal between impurity elements and solvent metals that lead to reduced or enhanced impurity partition relative to the respective ...

During ground-based solidification, buoyancy flow can develop by the density difference in hypoeutectic type of alloys, such as Al-7 wt% Si alloy. Buoyancy affect thermal field, solute distribution melt, and position amount new grains. As solidification is a very complex process, it not easy to separate different effects. Under microgravity conditions, natural convection does exist or strongly ...

В работе исследовано влияние термической обработки на физико-механические свойства и наночастицы сплавов системы Al–Mg–Si с малыми скандий-циркониевыми добавками избытком кремния. Для исследования сплавы были отлиты подвергнуты обработке в температурном диапазоне 360-440 ºС, выдержке интервале от 10 сек до 50 часов. После исследовались помощью просвечивающей микроскопии, а также них определялас...