Realizing the advantages of Replacing Lead with Tin in Bismuth-Lead Alloys for Improved Thermal and Nuclear Properties as Coolant | ||
| Arab Journal of Nuclear Sciences and Applications | ||
| Volume 57, Issue 3, July 2024, Pages 11-23 PDF (1.07 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/ajnsa.2024.281619.1809 | ||
| Authors | ||
| Samah Dahy1; R. M. Elshazly2; T. Z. Amer3; N. S. Gomaa4; A. A. Bahgat* 5 | ||
| 1Physics Department, Faculty of Science(Girls branch), Al-Azhar University, Nasr City,, Cairo, Egypt | ||
| 2Physics Department, Faculty of Science, Al-Azhar University | ||
| 3Physics Department, Faculty of Science (Girl’s branch), Al-Azhar University, Nasr City, 11884, Cairo, Egypt | ||
| 4Physics Department, Faculty of Science (Girls branch), Al-Azhar University, Nasr City, Cairo, Egypt | ||
| 5Faculty of Science,Al-Azhar University,Cairo,Egypt | ||
| Abstract | ||
| A series of Bi50Pb50-xSnx alloys, where x = 0, 16, 20, 25, and 30 wt. %, were prepared to be used as coolants and for heat transfer in fast fission and/or fusion nuclear reactors. For the prepared alloys, measurements were made of their density and melting points. Similarly, high-temperature measurements of the alloys' wetting contact angles on several substrate types were made to clarify their possible application in the design of nuclear reactors. The mass attenuation coefficients〖 μ〗_m (cm2/g) were established experimentally with energy ranges of 121.8 to 1407.24 keV. The neutron macroscopic cross sections ̩Ʃ (cm-1) and mean free path MFP (cm) of the alloys were determined experimentally using three neutron energy ranges (slow neutrons, total slow neutrons, and neutrons with energies > 0.4 eV). The results indicated that there was a substantial agreement between the theoretical calculations which were done with the aid of “WinXCom” and “Phy-X/PSD” software and the practical outcomes. The increase in Sn concentration at the expense of Pb improves the physical characteristics of (Bi-Pb-Sn) alloys, making them suitable for use as coolants in fast nuclear reactors. | ||
| Keywords | ||
| Liquid metal coolant; Wettability; melting points; γ-rays and neutrons absorption; Mass attenuation coefficients; build-up factors; and neutrons macroscopic cross-sections | ||
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