Category "Presentation", 8. – 10. grade
Daniel Ankov, 9th grade[1]
Iva Petkova, 9th grade[1]
Supervisor: Mariyana Georgieva
- “Dimcho Debelyanov” Secondary School – Sofia (Bulgaria)
https://doi.org/10.53656/nat2025-3.22
Abstract. This paper is dedicated to the 200th anniversary of the discovery of aluminum and explores its applications in cryogenics. Aluminum is a group IIIA metal with a constant valence of 3, and it possesses properties that make it effective at extremely low temperatures – below -150°C. Under such conditions, it retains its strength, flexibility and stability without becoming brittle. Cryogenics studies how the behavior of materials changes they are deeply cooled. Aluminum supports cryogenic processes through its high thermal conductivity, lightness and corrosion resistance. When subjected to cryogenic treatment, aluminum exhibits enhanced mechanical properties such as increased wear resistance, dimensional stability, and improved heat dissipation. These properties facilitate the creation of components that can withstand high loads, temperature stress and wear. Aluminum also supports energy efficiency and reduces the overall weight of structures, thereby enhancing the reliability and functionality of systems under extreme conditions.
Keywords: aluminum; cryogenics; low temperatures; industrial applications
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