A study of radiation-enhanced oxygen diffusion into polycrystalline Li-Ti ferrite

Abstract

The diffusion of oxygen into polycrystalline lithium-titanium ferrite under heavy electron exposure was studied in this work. The effects of radiation were evaluated by comparing the diffusivities of oxygen in the irradiated samples with those in the samples that have been received under the heat treatments at the same temperatures and for the same time (873-1173 K and 240 min respectively). The diffusion of oxygen into the grain and in the region of grain boundaries in ferrites have been investigated by a new technique (1999) which is based on measuring of the electrical conductivity activation energy E_a of surface ferrite layers. For investigated ferrite the oxygen diffusion constant and the activation energy of the process were obtained. The thermal-radiation annealing results in increasing of values of the activation energy of diffusion and the pre-exponential factor D_o.

Original language	English
Title of host publication	Proceedings - 2nd Annual Siberian Russian Student Workshop on Electron Devices and Materials, SREDM 2001
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	91-92
Number of pages	2
ISBN (Print)	5778203470, 9785778203471
DOIs	https://doi.org/10.1109/SREDM.2001.939162
Publication status	Published - 2001
Event	2nd Annual Siberian Russian Student Workshop on Electron Devices and Materials, SREDM 2001 - Erlagol, Altai, Russian Federation Duration: 3 Jul 2001 → 7 Jul 2001

Other

Other	2nd Annual Siberian Russian Student Workshop on Electron Devices and Materials, SREDM 2001
Country	Russian Federation
City	Erlagol, Altai
Period	3.7.01 → 7.7.01

ASJC Scopus subject areas

Electrical and Electronic Engineering
Electronic, Optical and Magnetic Materials

Access to Document

10.1109/SREDM.2001.939162

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A study of radiation-enhanced oxygen diffusion into polycrystalline Li-Ti ferrite. / Lysenko, E. N.; Ghyngazov, S. A.

Proceedings - 2nd Annual Siberian Russian Student Workshop on Electron Devices and Materials, SREDM 2001. Institute of Electrical and Electronics Engineers Inc., 2001. p. 91-92 939162.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Lysenko, EN & Ghyngazov, SA 2001, A study of radiation-enhanced oxygen diffusion into polycrystalline Li-Ti ferrite. in Proceedings - 2nd Annual Siberian Russian Student Workshop on Electron Devices and Materials, SREDM 2001., 939162, Institute of Electrical and Electronics Engineers Inc., pp. 91-92, 2nd Annual Siberian Russian Student Workshop on Electron Devices and Materials, SREDM 2001, Erlagol, Altai, Russian Federation, 3.7.01. https://doi.org/10.1109/SREDM.2001.939162

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abstract = "The diffusion of oxygen into polycrystalline lithium-titanium ferrite under heavy electron exposure was studied in this work. The effects of radiation were evaluated by comparing the diffusivities of oxygen in the irradiated samples with those in the samples that have been received under the heat treatments at the same temperatures and for the same time (873-1173 K and 240 min respectively). The diffusion of oxygen into the grain and in the region of grain boundaries in ferrites have been investigated by a new technique (1999) which is based on measuring of the electrical conductivity activation energy Ea of surface ferrite layers. For investigated ferrite the oxygen diffusion constant and the activation energy of the process were obtained. The thermal-radiation annealing results in increasing of values of the activation energy of diffusion and the pre-exponential factor Do.",

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AB - The diffusion of oxygen into polycrystalline lithium-titanium ferrite under heavy electron exposure was studied in this work. The effects of radiation were evaluated by comparing the diffusivities of oxygen in the irradiated samples with those in the samples that have been received under the heat treatments at the same temperatures and for the same time (873-1173 K and 240 min respectively). The diffusion of oxygen into the grain and in the region of grain boundaries in ferrites have been investigated by a new technique (1999) which is based on measuring of the electrical conductivity activation energy Ea of surface ferrite layers. For investigated ferrite the oxygen diffusion constant and the activation energy of the process were obtained. The thermal-radiation annealing results in increasing of values of the activation energy of diffusion and the pre-exponential factor Do.

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