Shock Response of Full Density Nanopolycrystalline Diamond.
Journal
Physical review letters
ISSN: 1079-7114
Titre abrégé: Phys Rev Lett
Pays: United States
ID NLM: 0401141
Informations de publication
Date de publication:
30 Oct 2020
30 Oct 2020
Historique:
received:
26
05
2020
accepted:
24
09
2020
entrez:
16
11
2020
pubmed:
17
11
2020
medline:
17
11
2020
Statut:
ppublish
Résumé
Hugoniot of full-dense nanopolycrystalline diamond (NPD) was investigated up to 1600 GPa. The Hugoniot elastic limit of NPD is 208 (±14) GPa, which is more than twice as high as that of single-crystal diamond. The Hugoniot of NPD is stiffer than that of single-crystal diamond up to 500 GPa, while no significant difference is observed at higher pressures where the elastic precursor is overdriven by a following plastic wave. These findings confirm that the grain boundary strengthening effect recognized in static compression experiments is also effective against high strain-rate dynamic compressions.
Identifiants
pubmed: 33196243
doi: 10.1103/PhysRevLett.125.185701
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM