Technical Physics Letters
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Volumes and Issues
- 2023
- 2022
Phase transitions Co-C nanocomposite at heating
Spivak L. V.
1, Sosunov A. V.
1, Shchepina N. E.
2
1Perm State University, Perm, Russia
2Natural Science Institute, Perm State National Research University, Perm, Russia
2Natural Science Institute, Perm State National Research University, Perm, Russia
Email: lspivak2@mail.ru, avsosunov@psu.ru
Differential scanning calorimetry was used to study the Co-C nanocomposite, which is an array of ultrathin carbon nanocages encapsulated cobalt nanoparticles. The activation energy of the α-> β transformation of the nanocomposite and the value of its endothermic effect have been estimated. Thermal effect is much greater than those values that correspond to the observation conditions for α->β transformations in massive cobalt samples. The idea was put forward that transitional transformation is assumed by a non-diffusion, massive mechanism. Keywords: phase transitions, carbon nanocages, cobalt, activation energy.
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