Funct. Mater. 2015; 22 (3): 304-308.
Structure and substructure variations of icosahedral Ti41.5Zr41.5Ni17 quasicrystals under irradiation imitating outer space factors
[1] National Technical University ”Kharkiv Polytechnical Institute”, 21 Frunze Str., 61002 Kharkiv, Ukraine
[2] National Scientific Center ”Kharkiv Physical and Technical Institute”,1 Academichna Str., 61108 Kharkiv, Ukraine
[3] B.Verkin Institute for Low Temperature Physics and Engineering, National Academy of Sciences of Ukraine, 47 Lenin Ave., 61103 Kharkiv, Ukraine
The article presents the results of studying the changes of coherent length, micro-strain value, density of phason defects and residual macro-stresses in Ti41.5Zr41.5Ni17 icosahedral quasi-crystalline ribbons after irradiation by VUV (hν = 10.2 eV, duration up to 40 h), electron and proton fluxes (hν = 100 KeV with doses D up to 13·1016 cm-2), X-ray bremsstrallung (hν = 1 MeV with doses D up to 10000 rad). It is shown that the scale of the substructure changes, defect density, their type and parameters depend on the perfection degree of the original structure and impact energy power.
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