Wigner energy of nanodiamond bombarded with neutrons or irradiated with γ radiation

Franco Cataldo, Giancarlo Angelini, Zsolt Révay, Eiji Osawa, T. Braun

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Commercial detonation nanodiamond samples were exposed to neutron bombardment in the dose range between 1.1 and 3.3 × 1016 n cm-2. Differential scanning calorimetry revealed that this nanodiamond material allows up to 237 J/g of Wigner energy to build up until released as an exothermic peak above 300°C. At comparable neutron dose the Wigner energy of graphite flakes is only 9.5 J/g. The same nanodiamond processed with γ radiation to dose levels of 1MGy and 2 MGy did not show any accumulation of Wigner energy but even a reduction of the internal defects in the pristine nanodiamond.

Original languageEnglish
Pages (from-to)861-865
Number of pages5
JournalFullerenes Nanotubes and Carbon Nanostructures
Volume22
Issue number10
DOIs
Publication statusPublished - Nov 26 2014

Fingerprint

Nanodiamonds
Neutrons
Radiation
neutrons
dosage
radiation
flakes
detonation
Graphite
energy
bombardment
Detonation
heat measurement
graphite
Dosimetry
Differential scanning calorimetry
scanning
defects
Defects

Keywords

  • γ-radiation
  • DSC
  • Nanodiamonds
  • neutron bombardment
  • Wigner energy

ASJC Scopus subject areas

  • Organic Chemistry
  • Physical and Theoretical Chemistry
  • Materials Science(all)
  • Atomic and Molecular Physics, and Optics

Cite this

Wigner energy of nanodiamond bombarded with neutrons or irradiated with γ radiation. / Cataldo, Franco; Angelini, Giancarlo; Révay, Zsolt; Osawa, Eiji; Braun, T.

In: Fullerenes Nanotubes and Carbon Nanostructures, Vol. 22, No. 10, 26.11.2014, p. 861-865.

Research output: Contribution to journalArticle

Cataldo, Franco ; Angelini, Giancarlo ; Révay, Zsolt ; Osawa, Eiji ; Braun, T. / Wigner energy of nanodiamond bombarded with neutrons or irradiated with γ radiation. In: Fullerenes Nanotubes and Carbon Nanostructures. 2014 ; Vol. 22, No. 10. pp. 861-865.
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