Yu.N. Zouev, Yu.N. Dolinsky, I.A. Lyasota, N.N. Markelov, Yu.L. Reprinzev, A.E. Shestakov
Russian Federal Nuclear Center
All Russian Science and Research
Institute of Technical Physics (RFNC-VNIITF)
Box 245, 456770 Snezhinsk,
Chelyabinsk reg., Russia
Experimental results are presented of deuterium and tritium permeability from a glow dis-charge plasma and a gaseous phase though nickel and low-activated steel.
Experiments were carried out on a specialized installation at the RFNC-VNIITF, which permits the measurement of hydrogen permeability by mass spectrometry over tempera-ture ranges of 293 K to 1000 K, pressure ranges of hydrogen isotopes of 50 Pa to 1000 Pa, glow discharge voltages of 100 V to 2500 V and currents of 5 mA to 500 mA. Sample disks (diam. 30 mm and 40 mm) can be assembled in the test chamber by electron-beam welding.
Curves of measured values for diffusion, permeability and solubility dependencies on tem-perature and pressure, and calculated values for corresponding activation energies, are pre-sented.
Work supported by the International Science and Technology Center (Project
No. 019-94).
Samples were fabricated by the Institute of Metal Physics, Ekaterinburg.