Open AccessMagnetic properties of fired clay (bricks) possibly containing epsilon iron (III) oxide
Author(s) -
A. Gurylev,
П. В. Харитонский,
Andrei Kosterov,
I. Berestnev,
E. S. Sergienko
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1347/1/012034
Subject(s) - magnetite , iron oxide , coercivity , hysteresis , oxide , materials science , magnetic hysteresis , iron oxide nanoparticles , magnetization , mineralogy , chemical engineering , composite material , metallurgy , chemistry , condensed matter physics , physics , magnetic field , engineering , quantum mechanics
We investigated bricks with ages from modern to late 19th century. The experimental and theoretical analysis of hysteresis loops and magnetization (ARM, IRM) acquisition curves show presence of two magnetic phases with high and low coercivity, respectively, which might be related to nanoparticles of oxidized and/or cation-substituted magnetite and epsilon iron (III) oxide. The fired clay (bricks) thus can be viewed as a model system in which epsilon iron (III) oxide forms readily.