X-Ray Diffraction Analysis of the Influence of the Absorbed γ-Irradiation Dose on Ti3Al Structural Characteristics
| Autor: | A. A. Sitnikov, A. V. Sobachkin, A. V. Gradoboev, V. I. Yakovlev, M. V. Loginova, V. Yu. Filimonov |
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| Rok vydání: | 2018 |
| Předmět: |
010302 applied physics
0301 basic medicine 030103 biophysics Materials science Isotope Analytical chemistry γ irradiation 01 natural sciences Surfaces Coatings and Films 03 medical and health sciences Volume (thermodynamics) Metastability Absorbed dose 0103 physical sciences X-ray crystallography Irradiation Thin film |
| Zdroj: | Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques. 12:480-484 |
| ISSN: | 1819-7094 1027-4510 |
| DOI: | 10.1134/s1027451018030126 |
| Popis: | The influence of absorbed γ-quantum irradiation doses Dγ (60Co isotope) on the structural parameters of Ti3Al single-phase compounds is experimentally investigated. The structural characteristics are defined more accurately using X-ray diffractometry. On account of the results of structural studies, it is found that exposure to low γ-radiation doses (e.g., Dγ = 1 × 103 Gy) generates the nonequilibrium state of the Ti3Al structure. An increase in the absorbed dose (to Dγ = 1 × 105 Gy) stimulates the formation of a metastable radiation-induced state, which is identified by diffraction-reflection splitting, an increase in the crystal-lattice volume, and changes in the parameters of the fine structure (the coherent-scattering-region size decreases to 13 nm, and the defect concentration increases). |
| Databáze: | OpenAIRE |
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