Sökning: onr:"swepub:oai:DiVA.org:liu-49654" >
Buckling and mechan...
Buckling and mechanical instability of ZnO nanorods grown on different substrates under uniaxial compression
-
- Riaz, M. (författare)
- Linköpings universitet,Institutionen för teknik och naturvetenskap,Tekniska högskolan
-
- Fulati, Alimujiang (författare)
- Linköpings universitet,Institutionen för teknik och naturvetenskap,Tekniska högskolan
-
- Zhao, Qingxiang (författare)
- Linköpings universitet,Tekniska högskolan,Institutionen för teknik och naturvetenskap
-
visa fler...
-
- Nour, Omer (författare)
- Linköpings universitet,Tekniska högskolan,Institutionen för teknik och naturvetenskap
-
- Willander, Magnus (författare)
- Gothenburg University,Linköpings universitet,Tekniska högskolan,Institutionen för teknik och naturvetenskap,Göteborgs universitet,University of Gothenburg,Institutionen för fysik (GU),Department of Physics (GU)
-
- Klason, Peter, 1977 (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för fysik (GU),Department of Physics (GU),Department of Physics, Göteborg University, SE-41296 Göteborg, Sweden
-
Zhao, Qing Xiang, 1962 (författare)
-
visa färre...
-
(creator_code:org_t)
- 2008-09-04
- 2008
- Engelska.
-
Ingår i: Nanotechnology. - : IOP Publishing. - 0957-4484 .- 1361-6528. ; 19:41
- Relaterad länk:
-
http://dx.doi.org/10...
-
visa fler...
-
https://urn.kb.se/re...
-
https://doi.org/10.1...
-
https://research.cha...
-
https://gup.ub.gu.se...
-
visa färre...
Abstract
Ämnesord
Stäng
- Mechanical instability and buckling characterization of vertically aligned single-crystal ZnO nanorods grown on different substrates including Si, SiC and sapphire (a-Al2O3) was done quantitatively by the nanoindentation technique. The nanorods were grown on these substrates by the vapor-liquid-solid (VLS) method. The critical load for the ZnO nanorods grown on the Si, SiC and Al2O3 substrates was found to be 188, 205 and 130 µN, respectively. These observed critical loads were for nanorods with 280 nm diameters and 900 nm length using Si as a substrate, while the corresponding values were 330 nm, 3300 nm, and 780 nm, 3000 nm in the case of SiC and Al2O3 substrates, respectively. The corresponding buckling energies calculated from the force displacement curves were 8.46 × 10-12, 1.158 × 10-11 and 1.092 × 10-11 J, respectively. Based on the Euler model for long nanorods and the J B Johnson model (which is an extension of the Euler model) for intermediate nanorods, the modulus of elasticity of a single rod was calculated for each sample. Finally, the critical buckling stress and strain were also calculated for all samples. We found that the buckling characteristic is strongly dependent on the quality, lattice mismatch and adhesion of the nanorods with the substrate. © IOP Publishing Ltd.
Ämnesord
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Nyckelord
- TECHNOLOGY
- TEKNIKVETENSKAP
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
Hitta via bibliotek
Till lärosätets databas