Mateus Botani de Souza Dias

• Abstract

  Aiming to implement more sustainable practices, Brazil has set a target during COP-26 to reduce carbon emissions by up to half. One way to achieve this will be to replace the fleet of internal combustion engine vehicles with hybrid/electric ones and increase energy generation from alternative sources such as wind power. Therefore, it is important to implement more efficient electric motor…

  Magnetic and microstructural analysis of sintering effects at rare earth magnets (NdFeB) using the "grain boundary diffusion" at 800 °C and 900 °C, BP.IC

• Abstract

  During COP-26, Brazil committed to reducing carbon emissions by up to 50% by 2030. One alternative to achieve this goal is the use of wind farms to produce electricity and the substitution of internal combustion engine vehicles with hybrid or electric vehicles. In both cases, rare earth supermagnets (NdFeB) must be used to allow for more efficient wind turbines and electric motors. Howeve…

  Microstructural and magnetic analyses of the sinterization effects in rare earth permanent magnets (NdFeB) using grain boundary diffusion under 900 °C and 1000 °C., BP.IC

• Abstract

  It is well known that the energy consumption of a country is strictly related to its economic growth. Thus, to improve power transformer performance, it is necessary to develop new procedures aiming to reduce power losses of grain-oriented electrical steels (GOES). An alternative to achieve this goal is the performance of stress annealing (TTT) since it could reduce power loss on magnetic…

  Study of the time influence of stress annealing effect (700°C) at power loss of grain oriented electrical steel, BP.IC

(Only some records are available in English at this moment)

• Abstract

  Generation and distribution of the electrical energy pass through the magnetic cores of power transformers, whose energetic efficiency is crucial to the sustainable exploitation of the natural resources, the containment of CO2 emissions, and their undesirable effects on the world climate. Progress in design and development of efficient electrical machines relies on improved and better-und…

  Theoretical and experimental analysis of loss in go steels from DC to kHz range, BE.EP.PD