Abstract
We examined the effect of nitrogen, oxygen and argon plasma on the diffusion- controlled oxidation-reduction processes in lithium-titanium-zinc ferrite ceramics by measuring the activation energy of electrical conductivity in the depth of the sample. The experimental results show that the high-temperature treatment in polycrystalline ferrites by nitrogen or argon ion plasma greatly accelerates the oxidation-reduction processes in ferrites and changes the process direction depending on the partial pressure of oxygen.
Highlights
The radiation effect methods have been used to exert the effective effect on the structural condition and different physical-mechanical properties of a wide range of materials [1,2,3,4,5]
A particular interest has been shown in research on the modification of the surface and near-surface layers of materials based on oxide compounds in order to develop new a new optical, mechanical, electrophysical and chemical properties. [6,7]
As regards the oxide materials, a special interest is the investigations of the effect of ion-plasma treatment in different atmosphere on the efficiency of the proceeding of diffusion-controlled oxidation-reduction processes which largely determine the stoichiometry of the surface layers and coatings, and are the basis of planar manufacturing technology of electronic devices
Summary
The radiation effect methods have been used to exert the effective effect on the structural condition and different physical-mechanical properties of a wide range of materials [1,2,3,4,5]. As regards the oxide materials, a special interest is the investigations of the effect of ion-plasma treatment in different atmosphere on the efficiency of the proceeding of diffusion-controlled oxidation-reduction processes which largely determine the stoichiometry of the surface layers and coatings, and are the basis of planar manufacturing technology of electronic devices. The effect of plasma was determined by comparison with the investigation results derived from the samples subjected to heat treatment in non-ionized gas atmosphere at low pressure.
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