A model for gas permeability of a carbon fibre reinforced plastic composite material

To evaluate gas permeability of a material, we developed a model that takes its properties into account over a wide range of temperatures. We use a single model to summarise known experimental data on outgassing in structural materials for vacuum use, such as glass, aluminium alloys, ceramics and so on. We show that it is possible to make the matrix gas permeability approach the gas permeability of fused silica.

References

[1] Litvinov V.B., Kobets L.P., Toksanbaev M.S., Deev I.S., Buchnev L.M. Structural-mechanical properties of strong carbonfiber. Kompozity i nanostruktury [Composites and Nanostructures], 2011, no. 3, pp. 36–50.

[2] Shemarova O.A., Nikulin N.K. Conductivity testing in molecular and transient mode of a gas flow by particle-in-cell method. Inzhenernyy zhurnal: nauka i innovatsii [Engineering Journal: Science and Innovation], 2013, no. 5(17). Available at: http://engjournal.ru/catalog/machin/vacuum/753.html.

[3] Shemarova O.A., Nikulin N.K. Matematicheskoe modelirovanie techeniya razrezhennogo gaza pri nalichii vozmushchayushchikh vozdeystviy [Math modelling of low-density flotation in case of perturbation actions]. 8 Mezhdunarodnaya nauchno-tekhnicheskaya konferentsiya. Vakuumnaya tekhnika, materialy i tekhnologiya. Materialy [8 Int. Sci.-Tech. Conf. “Vacuum equipment, materials and technology”]. Moscow, Novella publ., 2013, pp. 105–111.

[4] Demikhov K.E., Nikulin N.K., Svichkar’ E.V. Gas flow in spiral channel of molecular pump. Vestnik MGTU im. N.E. Baumana. Ser. Mashinostroenie [Herald of the Bauman Moscow State Technical University. Ser. Mechanical Engineering], 2012, pp. 10–20.

[5] Demikhov K.E., Panfilov Yu.V., Nikulin N.K., et al. Vakuumnaya tekhnika: spravochnik [Vacuum technique: the guide]. Moscow, Mashinostroenie publ., 2009, pp. 56–61.

[6] Weston G.F. Ultrahigh vacuum practice. Butterworths, 1985. 292 p. (Russ. ed.: Tekhnika sverkhvysokogo vakuuma. Moscow, Mir publ., 1988. 366 p.).