Abstract
Two different kinds of organic polyelectrolyte (PE)/inorganic silicate nanolaminates carrying dissimilar interfacial adhesion between the organic and the inorganic layers were prepared using the layer-by-layer self-assembly. To investigate the mechanical behavior of the prepared hybrid films, apparent modulus (E′), hardness (H), and crack length were measured by depth-sensing nanoindentation as well as a microVickers experiment. The fracture toughness of the hybrid films was then calculated based on the measured mechanical values. In the case of forming strong interfacial adhesion between the organic and the inorganic layers (A series), the fracture toughness and the crack resistance of hybrid multilayer films were significantly improved as a result of the redistribution of stress concentration and the dissipation of fracture energy by the plasticity of organic PE layers. On the other hand, samples with relatively low interfacial adhesion between the organic and the inorganic layers (T series) had little effect on the improvement of fracture toughness of the hybrid films.
| Original language | English |
|---|---|
| Pages (from-to) | 447-468 |
| Number of pages | 22 |
| Journal | Journal of Adhesion |
| Volume | 82 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 2006 May 1 |
| Externally published | Yes |
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Keywords
- Fracture toughness
- Interfacial adhesion
- Mechanical property
- Nacre
- Nanoindentation
- Organic/inorganic hybrid nanolaminate
ASJC Scopus subject areas
- Chemical Engineering(all)
- Materials Science(all)
- Mechanics of Materials
- Computational Mechanics
Cite this
Effect of interfacial adhesion on the mechanical properties of organic/inorganic hybrid nanolaminates. / Yeom, Bongjun; Kim, Suhan; Cho, Jinhan; Hahn, Junhee; Char, Kookheon.
In: Journal of Adhesion, Vol. 82, No. 5, 01.05.2006, p. 447-468.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Effect of interfacial adhesion on the mechanical properties of organic/inorganic hybrid nanolaminates
AU - Yeom, Bongjun
AU - Kim, Suhan
AU - Cho, Jinhan
AU - Hahn, Junhee
AU - Char, Kookheon
PY - 2006/5/1
Y1 - 2006/5/1
N2 - Two different kinds of organic polyelectrolyte (PE)/inorganic silicate nanolaminates carrying dissimilar interfacial adhesion between the organic and the inorganic layers were prepared using the layer-by-layer self-assembly. To investigate the mechanical behavior of the prepared hybrid films, apparent modulus (E′), hardness (H), and crack length were measured by depth-sensing nanoindentation as well as a microVickers experiment. The fracture toughness of the hybrid films was then calculated based on the measured mechanical values. In the case of forming strong interfacial adhesion between the organic and the inorganic layers (A series), the fracture toughness and the crack resistance of hybrid multilayer films were significantly improved as a result of the redistribution of stress concentration and the dissipation of fracture energy by the plasticity of organic PE layers. On the other hand, samples with relatively low interfacial adhesion between the organic and the inorganic layers (T series) had little effect on the improvement of fracture toughness of the hybrid films.
AB - Two different kinds of organic polyelectrolyte (PE)/inorganic silicate nanolaminates carrying dissimilar interfacial adhesion between the organic and the inorganic layers were prepared using the layer-by-layer self-assembly. To investigate the mechanical behavior of the prepared hybrid films, apparent modulus (E′), hardness (H), and crack length were measured by depth-sensing nanoindentation as well as a microVickers experiment. The fracture toughness of the hybrid films was then calculated based on the measured mechanical values. In the case of forming strong interfacial adhesion between the organic and the inorganic layers (A series), the fracture toughness and the crack resistance of hybrid multilayer films were significantly improved as a result of the redistribution of stress concentration and the dissipation of fracture energy by the plasticity of organic PE layers. On the other hand, samples with relatively low interfacial adhesion between the organic and the inorganic layers (T series) had little effect on the improvement of fracture toughness of the hybrid films.
KW - Fracture toughness
KW - Interfacial adhesion
KW - Mechanical property
KW - Nacre
KW - Nanoindentation
KW - Organic/inorganic hybrid nanolaminate
UR - http://www.scopus.com/inward/record.url?scp=33646546638&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33646546638&partnerID=8YFLogxK
U2 - 10.1080/00218460600713592
DO - 10.1080/00218460600713592
M3 - Article
AN - SCOPUS:33646546638
VL - 82
SP - 447
EP - 468
JO - Journal of Adhesion
JF - Journal of Adhesion
SN - 0021-8464
IS - 5
ER -