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The Scientific World Journal
Volume 2017, Article ID 9078152, 9 pages
https://doi.org/10.1155/2017/9078152
Research Article

SEM and AFM Studies of Two-Phase Magnetic Alkali Borosilicate Glasses

1Peter the Great Saint-Petersburg Polytechnic University, Polytechnicheskaya 29, St. Petersburg 195251, Russia
2Ioffe Institute, Polytechnicheskaya 26, St. Petersburg 194021, Russia
3Leibniz University of Hannover, ETP, Wilhelm-Busch-Street, 30167 Hannover, Germany
4International Laboratory of High Magnetic Fields and Low Temperatures, Gajowicka 95, 53-421 Wroclaw, Poland

Correspondence should be addressed to N. Andreeva; moc.liamg@rdnavn

Received 14 July 2016; Accepted 16 February 2017; Published 27 March 2017

Academic Editor: Tae Won Kang

Copyright © 2017 N. Andreeva et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The morphology and composition of four types of two-phase alkali borosilicate glasses with magnetic atoms prepared by inductive melting have been studied. The results of scanning electron microscopy point to uniform distribution of Na, Si, and O atoms in these samples while magnetic iron atoms form ball-shaped agglomerates. The magnetic properties of these agglomerates have been confirmed by magnetic force microscopy. Atomic force microscopy had shown that in these samples two different morphological structures, drop-like and dendrite net, are formed. The formation of dendrite-like structure is a necessary condition for production of porous magnetic glasses. The obtained results allow us to optimize the melting and heat treatment processes leading to production of porous alkali borosilicate glasses with magnetic properties. The first results for nanocomposite materials on the basis of magnetic glasses containing the embedded ferroelectrics KH2PO4 demonstrate the effect of applied magnetic field on the ferroelectric phase transition.