•	Nanocomposites and nanomaterials

Electron iradiation of carbon nanotubes
H.Yu. Mykhailova, M.M. Nischenko
G. V. Kurdyumov Institute for Metal Physics of the NAS of Ukraine

Growth and radiation defects of MCNTs change the electronic structure and properties in different ways. It was determined that edge dislocations in the CNT cut path carrier transport inside CNT lead to an increase in the order of the radial σ(ρ) and lower coefficient of thermoelectric power α 2 times. 
The thermoelectric properties of an array of carbon nanotubes irradiated by high-energy electrons with an energy of 21 MeV were investigated.
It is established that the value of the coefficient of thermo-EMF decreases with an increase in the radiation dose by 10%; the conductivity after irradiation is reduced for the smallest dose by 24%, and then, with an increase in the dose of radiation, it begins to increase to 18%. Such behavior is caused by the formation, destruction and reclamation of defects to radiation and radiation in the array of CNT.
Defects of different genesis rejects form of the CNT from the straight and forms a topological disorder, which changes the electrical conductivity and increases the coefficient of thermal electromotive force, but their combined effect reduces this disorder as a result of the interaction of defects leads to the annihilation of defects and/or “healing”.