Enhancement of Electrical and Magnetic Properties of Nanocomposite BaTiO3 - NiZnFe2O4 Irradiated by Gamma Ray

被引：0
作者：
Henaish, A. M. A. [1 ]
Ashour, A. H. [2 ]
El Refaay, D. E. [3 ,4 ]
Hemeda, O. M. [1 ]
机构：
[1] Tanta Univ, Fac Sci, Phys Dept, Tanta, Egypt
[2] Atom Energy Author, Radiat Phys Dept, Natl Ctr Radiat Res & Technol, Nasr City, Egypt
[3] Suez Canal Univ, Phys Dept, Fac Sci, Ismailia, Egypt
[4] King Khalid Univ, Coll Sci & Arts, Abha, Saudi Arabia
来源：
ARAB JOURNAL OF NUCLEAR SCIENCES AND APPLICATIONS | 2019年 / 52卷 / 02期
关键词：
Nickel-zinc ferrites; BaTiO3; Nanocomposites; Gamma ray irradiation; DIFFUSION;
D O I：
10.21608/ajnsa.2019.3776.1089
中图分类号：
TL [原子能技术]; O571 [原子核物理学];
学科分类号：
0827 ; 082701 ;
摘要：
The effects of gamma ray irradiation on the, microstructural and magnetic properties of the composite (1-x) (Ni0.8Zn0.2Fe2O4) + x (BaTiO3) where x = 0%, 20%, 40%, 60% and 80% BT content have been investigated. All samples were exposed to 310 kGy gamma radiation dose at a dose rate of 1.4 kGy/h at room temperature using Co-60 radioactive source at irradiation cell (medical sterilizer type CM-20). From X-ray diffraction analysis, it was found obviously that the lattice parameters and the average grain size have been affected, for all irradiated samples. The initial permeability at Curie temperature for all samples sharply decreased after irradiation. The values of diffusion coefficient of oxygen vacancies, the concentration of oxygen vacancies and the activation energy of diffusion process were calculated before and after irradiation. From the results, it could be concluded that the material after irradiation can be used for the Gamma ray detection.
引用
收藏
页码：112 / 124
页数：13
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