Paper Title:
Nanostructured Ferrite Formation in Borosilicate Glass
  Abstract

We present the preparation, structural, and magnetic properties of a series of Fe-containing borosilicate glasses as a function of the ratio SiO2/Fe2O3 which is ranging from 1.49 to 2.68. The role of nucleators (Cr2O3 and P2O5) was also investigated. X-Ray diffraction has revealed the formation of magnetite as the major or unique crystalline phase. As SEM micrographs have revealed, the addition of P2O5 give rise to a finer structure as compared with Cr2O3. In addition, the same oxide decreases the temperature of structural transition with almost 100 °C. The magnetization data reveal a two step transition at low temperatures: a high temperature transition at Tv = 128 K, which we attribute to the Verwey transition, and a low temperature transition at Ts = 48 K which, most likely, is the result of change in the dynamic of the domain motion.

  Info
Periodical
Advanced Materials Research (Volumes 79-82)
Edited by
Yansheng Yin and Xin Wang
Pages
445-448
DOI
10.4028/www.scientific.net/AMR.79-82.445
Citation
V. Sandu, S. Popa, I. Pasuk, I. Enculescu, M. S. Nicolescu, S. Radicescu, "Nanostructured Ferrite Formation in Borosilicate Glass", Advanced Materials Research, Vols. 79-82, pp. 445-448, 2009
Online since
August 2009
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Price
$32.00
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