Nonlinear surface acoustic waves: silicon strength in phonon-focusing directions.
Ultrasonics
; 48(6-7): 488-91, 2008 Nov.
Article
in En
| MEDLINE
| ID: mdl-18649909
ABSTRACT
The anisotropy of the elastic properties of single-crystal silicon manifests itself in features of both the linear and nonlinear surface acoustic wave (SAW) propagation. Directions showing the phonon-focusing effect and strong nonlinearity were employed in contact-free and notch-free laser-based fracture experiments, yielding the intrinsic strength of silicon. The critical tensile stress values vary between 2.5 GPa and 7 GPa for the different crystallographic planes and directions of SAW propagation investigated.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Language:
En
Journal:
Ultrasonics
Year:
2008
Document type:
Article
Affiliation country:
Germany
Publication country:
HOLANDA
/
HOLLAND
/
NETHERLANDS
/
NL
/
PAISES BAJOS
/
THE NETHERLANDS