Temáticas

MATERIALES MAGNETICOS

TRANSICIONES DE FASE

RESÚMENIron-cobalt based nanostructured magnetic alloys stand out among conventional magnetic Fe-based magnetic alloys because they exhibit the optimum soft magnetic properties required in a variety of technological, industrial and biomedical applications. In this work, the thermal characterization by differential scanning calorimetry was carried out using thermogravimetric analysis and magnetic thermogravimetry of Fe and Co pure powders, and nanostructured magnetic powders based on Fe50Co50 and Fe65Co35 prepared with the high energy mechanical alloying method. By means of these techniques and with the influence of different atmospheres as Helium (He), Nitrogen (N2) and Argon (Ar), thermal events for samples milled at different times (0, 10, 15, 20 and 25 hours) were evidenced taking place from -70 °C to 500 °C by differential scanning calorimetry and ambient temperature up to 900 °C in the thermogravimetric analyzer. The observed events, as the temperature in the material varies, are associated with the magnetic transition temperatures, order -disorder phase transitions and stress relaxation effect which are features of this type of samples and the milling process

Nombre Comercial

Caracterización térmica de aleaciones nanoestructuradas Fe50Co50 y Fe65Co35

Idioma

Inglés

Fecha Publicación

2019-01-01

País

COLOMBIA

Ciudad

Pamplona

Vólumen

Número

Página Inicial

158

Página Final

169

Total Páginas

Dspace

fadcf42f-882d-4be2-99e7-0cea7d884fa7

Handle

https://hdl.handle.net/10614/13421

Sicti

18275

DOI

10.24054/01204211.v2.n2.2019.3533

RDI: Repositorio Digital

https://red.uao.edu.co/entities/publication/fadcf42f-882d-4be2-99e7-0cea7d884fa7

Doi

https://doi.org/10.24054/01204211.v2.n2.2019.3533