کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1803143 | 1524905 | 2006 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Temperature effect on the magnetic properties of the coprecipitation derived ferrimagnetic glass-ceramics Temperature effect on the magnetic properties of the coprecipitation derived ferrimagnetic glass-ceramics](/preview/png/1803143.png)
Ferrimagnetic glass-ceramic materials are promising candidates for destruction of cancerous cells by hysteresis loss, as a consequence of the increase of the local temperature when an alternating magnetic field is applied. The glass-ceramics prepared in this work contain magnetite and hematite crystals in a glassy matrix. They can be prepared by melting the coprecipitation-derived precursors at temperatures higher than 1400°C. The influence of the melting temperature on the magnetic properties of these glass-ceramics has been analysed. Room temperature hysteresis cycles in quasi-static conditions were performed using two different magnetic field, one of 12 kOe, and the other one of 500 Oe. The heat generation was estimated from calorimetric measurements, using a magnetic induction furnace. The magnetic hysteresis parameters are strongly affected by the glass-ceramics microstructure, which is influenced by the melting temperature.
Journal: Journal of Magnetism and Magnetic Materials - Volume 300, Issue 2, May 2006, Pages 412–417