EPR study of silicon nitride (Si3N4) nanoparticles exposed to neutron irradiation

被引：18
作者：
Huseynov, Elchin M. [1 ,2 ,3 ]
Garibov, Adil A. [1 ,2 ]
Valiyev, Sahil P. [1 ]
机构：
[1] Natl Nucl Res Ctr, Dept Nanotechnol & Radiat Mat Sci, Baku Shamakhi Highway, AZ-1073 Baku, Azerbaijan
[2] Azerbaijan Natl Acad Sci, Inst Radiat Problems, B Vahabzade 9, AZ-1143 Baku, Azerbaijan
[3] Azerbaijan State Econ Univ UNEC, Composite Mat Sci Res Ctr, Dept Phys & Chem, H Aliyev Str 135, AZ-1063 Baku, Azerbaijan
来源：
RADIATION PHYSICS AND CHEMISTRY | 2022年 / 195卷
关键词：
Nano Si3N4; Nanoparticles; Neutron transformation; EPR spectroscopy; Neutron irradiation; !text type='JS']JS[!/text]I TRIGA REACTOR; COMPUTATIONAL ANALYSIS; ELECTRIC-CONDUCTIVITY; TEMPERATURE; SIO2; PARAMETERS; SIMULATION; FLUX;
D O I：
10.1016/j.radphyschem.2022.110087
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Paramagnetic centers in nano Si3N4 particles and their nature were comparatively studied before and after neutron irradiation. Electron Paramagnetic Resonance (EPR) spectroscopic analysis was performed at magnetic field values of 0.05-0.55 T (500-5500 Gauss). The 3460G-3580G area corresponding to Si-based paramagnetic centers is discussed in detail. After neutron irradiation some annihilated EPR signal explained. The formation mechanisms of Si-Si, Si-3 equivalent to Si* and Si equivalent to N-3-based paramagnetic centers and the effect of neutron-induced transmutation on them has been studied.
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页数：5
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