The effects of ionizing radiation on the thermophysical properties of substituted Sr-ferrites

M. Sekkina

doi:10.1007/bf02162932

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Journal of Radioanalytical and Nuclear Chemistry

Volume/Issue:: Volume 213: Issue 5

The effects of ionizing radiation on the thermophysical properties of substituted Sr-ferrites

Author:

M. Sekkina

M. Sekkina Tanta University Chemistry Department, Faculty of Science Tanta Egypt

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Pages:: 331–347

Online Publication Date:: 27 Sep 2005

Publication Date:: 17 Jul 1996

Article Category:: Research Article

DOI:: https://doi.org/10.1007/bf02162932

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Abstract

Different samples of Sr-ferrites have been synthesized by the usual ceramic and high temperature sintering technique. On these samples, several measurements have been undertaken namely, thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), the temperature dependence of DC electric conductivity before and after -absorbed dose, and the temperature dependence of dielectric constant. Results obtained were explained, correlated, interpreted and discussed in detail on the basis of the interaction of temperature, dopant cations and -radiation with the Sr-ferrite lattice. The activation energy (E), energy gap for semiconduction and activation energy for -radiation-induced carrier liberation () were evaluated for the first time. Finally, a mechanism for semi-conductivity in terms of energy band picture in intrinsic ferrite semiconductors is suggested and discussed.

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Journal of Radioanalytical and Nuclear Chemistry

Print ISSN:: 0236-5731

Online ISSN:: 1588-2780

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Journal of Radionalytical and Nuclear Chemistry
Language	English
Size	A4
Year of Foundation	1968
Volumes per Year	1
Issues per Year	12
Founder	Akadémiai Kiadó
Founder's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher	Akadémiai Kiadó Springer Nature Switzerland AG
Publisher's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245. CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible Publisher	Chief Executive Officer, Akadémiai Kiadó
ISSN	0236-5731 (Print)
ISSN	1588-2780 (Online)