CV Lattes
Universidade Federal de São Paulo (UNIFESP). Campus Diadema. Instituto de Ciências Ambientais, Químicas e Farmacêuticas (ICAQF) (Institutional affiliation from the last research proposal) Birthplace: Brazil
Sergio Gama in research grants and scholarships supported by FAPESP.
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Given the great importance of renewable energies in our society, we identify the need of a device able to efficiently transform solar energy or industrial thermal rejects into mechanical or electrical energies. From our study of magnetic materials with first order transitions in relation to the magnetocaloric effect, we observed that some materials present a high magnetization variation i…
Given the ever greater importance of the renewable energies in our society, we identify the need of a device able to efficiently transform solar energy or industrial thermal energy rejects into mechanical or electrical energies. From our study of magnetic materials with first order magnetic transitions in relation to the magnetocaloric effect, aiming their application in magnetic refriger…
(Only some records are available in English at this moment)
Magnetic materials are important in several technological areas. Two research areas are in development in actuality. The first is magnetic refrigeration, which can replace the conventional gas compression technology for the reasons of better efficiency and no emission of gases that affect the ozone layer. The second area is the one of thermomagnetic devices, mainly motors, which are able …
The MnAs compound is very interesting because it presents a first order magnetic transition coupled to a crystallographic one from a hexagonal (ordered, low T) to orthorhombic (disordered, high t), and this induces the giant magnetocaloric effect. Under pressure, the compound shows the colossal magnetocaloric effect. Compounds derived from MnAs, as MnAsSb, estabilize the hexagonal structu…
| 18 / 9 | Completed research grants |
| 13 / 2 | Completed scholarships in Brazil |
| 31 / 11 | All research grants and scholarships |
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