Cristina Bormio Nunes

• Abstract

  Fe-Co alloys for Co mass % in the interval 25% < Co < 50% are of interest for use in electrical machines, as they have a high saturation magnetization value and a high Curie temperature. Both properties result in large energy efficiency of electric motors when the material is used as the magnetic core of these motors, as in the case of electric cars. This large efficiency is an urgent glo…

  Development of Fe-Co alloys with the addition of Ti and Cr for applications in high energy performance electric machines, AP.R

• Abstract

  Some of the high entropy alloys (HEA) based on Fe, Co and Ni have been studied in the literature in the last 7 years. It has been found that these alloys are magnetically smooth and ideally monophasic. However, no magnetostriction has been studied so far. Magnetostriction is an important property to be studied in magnetic materials because it is directly linked to the application of these…

  High Entropy alloys based on Fe, Co and Ni: Production and Study of Magnetic Properties., AP.R
• SMM22 - Soft Magnetic Materials Conference, AR.BR

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

• Abstract

  To date, there are few scientific studies published on Fe-Co alloys with lower amounts of Co than the equiatomic alloy. Everything that was developed in relation to low-Co alloys (~(27 < %Co < 35)) was done by the industry, which does not provide data from the research carried out.These Fe-Co alloys with lower amounts of Co are relevant to be studied, as they have high saturation magnetiz…

  Production of Fe-35%Co alloy (% by mass) and study of its magnetic properties., BP.IC

• Abstract

  There are practically no scientific studies published on Fe-Co alloys with lower amounts of Co than the equiatomic one. Everything that was developed in relation to these alloys was done by the industry, which does not provide data from the research carried out. These Fe-Co alloys with lower amounts of Co (27 < %Co < 35) are relevant to be studied, as they have high saturation magnetizati…

  Obtaining Fe-35%Co alloys (% in mass) with Cr addition: survey of magnetic properties, BP.IC

• Abstract

  Fe-Co alloys with lower amounts of Co (27 < %Co < 35) compared to commercial equiatomic alloys (48Fe:48Co:2V) are relevant to be studied, as they have high saturation magnetizations, high Curie temperatures and are cheaper, as they contain less cobalt. Considering only raw material prices, a ton of Fe-Co equiatomic alloy costs about 11200 USD more than alloys with 35% Co. Currently, the p…

  Influence of Nb addition on the magnetic and mechanical properties of Fe-35%Co alloy (mass %), BP.IC

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

• Abstract

  In the Project (FAPESP 2021/06350-0), to which student Iris Braga's scientific initiation project is inserted, the study of the addition of Cr to improve the mechanical property (deformability) of the binary alloy is followed by the study of the addition of Ti to the Fe-35%Co+Cr alloy, and this addition of Ti aims to increase magnetic permeability and decrease magnetostriction. Specifical…

  Magnetomechanical behavior of Fe-35%Co alloys (% in mass) with addition of 0.5 and 0.7% of Cr, BE.EP.IC

• Abstract

  In the ongoing project FAPESP 2021/06350-0 , the study of the addition of Cr to improve the mechanical property of the Fe-35%Co binary alloy is followed by the study of the addition of Ti to the Fe-35%Co+Cr alloy. The Ti addition aims to increase the magnetic permeability and decrease the magnetostriction. In this project, the intended use of the material is as core sheets for electrical …

  Survey of piezomagnetic properties of Fe-35%Co alloys (% by mass) with addition of 0.5 and 0.7% of Nb, BE.EP.IC