Open AccessSome Experiments on Synthetic Titanomagnetites
Author(s) -
Lewis M.
Publication year - 1968
Publication title -
geophysical journal of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.302
H-Index - 168
eISSN - 1365-246X
pISSN - 0016-8009
DOI - 10.1111/j.1365-246x.1968.tb00224.x
Subject(s) - magnetite , annealing (glass) , materials science , mineralogy , magnetic field , geology , metallurgy , physics , quantum mechanics
Summary A range of synthetic samples of the magnetite‐ulvospinel series has been made by the usual sintering technique. These samples were subjected to oxidation, and subsequent annealing treatment in vacuum. Magnetic measurements and petrological observations were made at each stage in the treatment. It is concluded that the magnetic stability of the samples is greatly increased as a result of oxidation; the TRM also increases by a considerable amount. Some of the oxidized and annealed samples behave in an unusual manner in weak magnetic field experiments, and seem to show a novel kind of magnetic interaction.