| Autor: |
S.D. Karpukhin, S.I. Tyutyunnikov, E.A. Frolova, V.S. Yusupov, V. A. Artyukh, V.N. Shalyapin, B. F. Belelyubsky, T.L. Enik, V. A. Zelensky, R. S. Fakhurtdinov |
| Rok vydání: |
2021 |
| Předmět: |
|
| Zdroj: |
Physics and Chemistry of Materials Treatment. 1:67-72 |
| ISSN: |
0015-3214 |
| Popis: |
By the method of mechanical alloying, compaction and thermosynthesis of a mixture of amorphous boron and aluminum powders, a prototype of highly borated (~50 wt.%) dispersed boron-aluminum was obtained. A comparative assessment of the neutron-shielding properties of borated dispersed aluminum and fibrous boron-aluminum VKM Al-B under irradiation with neutrons with a flux density of 1.4·106 n/cm²·s with a fluence of 3·109 n/cm2 was carried out. Using optical and scanning electron microscopy, a morphological analysis of samples of dispersed-borated powdered aluminum and fibrous-composite boron-aluminum was carried out. It was found that in both materials the level of absorption of neutrons with energies of 0.02-0.05 eV is up to 99.5-99.95%. It is concluded that highly borated dispersed boron-aluminum supplements the line of known boron-containing neutron-absorbing materials with the possibility of using it up to temperatures of 500-700°C. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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