Phonons in nanocrystalline Ni

@inproceedings{Frase1997PhononsIN,
  title={Phonons in nanocrystalline Ni},
  author={Hilary Frase and Brent Fultz and John L Robertson},
  year={1997}
}
Inelastic neutron-scattering spectra were measured to obtain the phonon density of states ~DOS! of nanocrystalline fcc Ni 3Fe. The materials were prepared by mechanical alloying, and were also subjected to heat treatments to alter their crystallite sizes and internal strains. In comparison to material with large crystallites, the nanocrystalline material shows two distinct differences in its phonon DOS. The nanocrystalline DOS was more than twice as large at energies below 15 meV. This increase… CONTINUE READING

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