Electron irradiation induced buckling, morphological transformation, and inverse Ostwald ripening in nanorod filled inside carbon nanotube

â¿¢In-situ response of iron carbide (Fe3C) nanorod filled inside carbon nanotube (CNT) under electron irradiation has been studied at room and high temperature.â¿¢Inverse Ostwald ripening and morphological changes in both carbon nanotube as well as nanorod are observed.â¿¢Compression generated either by electron beam heating or by shrinkage of CNT walls has been observed to be a decisive factor.â¿¢Temperature during the irradiation shows high impact on irradiation induced changes.