Reviews on Advanced Materials Science (Aug 2020)

Low-temperature separation of helium-helion mixture

  • Bubenchikov Alexey Mikhailovich,
  • Bubenchikov Mikhail Alekseevich,
  • Jambaa Soninbayar,
  • Lun-Fu Aleksandr Viktorovich,
  • Chelnokova Anna Sergeevna

DOI
https://doi.org/10.1515/rams-2020-0004
Journal volume & issue
Vol. 59, no. 1
pp. 361 – 370

Abstract

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The research is devoted to the problem of designing materials with an adjustable property of permeability. The obtained tool for property regulation allows achieving hyper-selectivity in relation to separation of helium isotope mixtures, as well as some other gas mixtures. The reasearch is theoretical in nature; however, it suggests a clear direction of activity for experimenters. The result obtained is valid for ultrathin barriers of any form. As a result, a new exact solution of the Schrödinger equation of wave dynamics, which is valid for the case of two-barrier systems, is found. This solution allows for comprehensive consideration of the process of wave passage through a barrier and identification of the causes leading to super-permeability of individual components.

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