Micromechanical properties of a hydroxyapatite/poly-L-lactide biocomposite using nanoindentation and modulus mapping
Abstract
Biocomposites with ceramic fillers and polymer matrix are becoming attractive materials for bone tissue replacements. Nanoindentation has been used to locally characterize the surface mechanical properties of the hydroxyapatite/pOly-L-lactide (HAp/PLLA) biocomposite. Additionally, differences in the mechanical properties of HAP phase were successfully characterized as a function of surface morphology by using a highresolution modulus mapping technique. HAP granules consist of agglomerates of grainy clusters. Mechanical properties of ceramic grains and PLLA are in fair agreement with literature data. High-resolution methods were able to measure the properties of boundary phases between grains and the pore regions between particles in the agglomerate. After short-time immersion in distilled water, material surface showed a large decrease in storage modulus.
Keywords:
composites / mechanical properties / biomedical applications / nanoindentationSource:
Journal of the European Ceramic Society, 2007, 27, 2-3, 1559-1564Publisher:
- Elsevier Sci Ltd, Oxford
DOI: 10.1016/j.jeurceramsoc.2006.04.122
ISSN: 0955-2219
WoS: 000243265100189
Scopus: 2-s2.0-33751021086
Institution/Community
Tehnološko-metalurški fakultetTY - JOUR AU - Uskoković, Petar AU - Tang, C. Y. AU - Tsui, C. P. AU - Ignjatović, Nenad AU - Uskoković, Dragan PY - 2007 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1119 AB - Biocomposites with ceramic fillers and polymer matrix are becoming attractive materials for bone tissue replacements. Nanoindentation has been used to locally characterize the surface mechanical properties of the hydroxyapatite/pOly-L-lactide (HAp/PLLA) biocomposite. Additionally, differences in the mechanical properties of HAP phase were successfully characterized as a function of surface morphology by using a highresolution modulus mapping technique. HAP granules consist of agglomerates of grainy clusters. Mechanical properties of ceramic grains and PLLA are in fair agreement with literature data. High-resolution methods were able to measure the properties of boundary phases between grains and the pore regions between particles in the agglomerate. After short-time immersion in distilled water, material surface showed a large decrease in storage modulus. PB - Elsevier Sci Ltd, Oxford T2 - Journal of the European Ceramic Society T1 - Micromechanical properties of a hydroxyapatite/poly-L-lactide biocomposite using nanoindentation and modulus mapping EP - 1564 IS - 2-3 SP - 1559 VL - 27 DO - 10.1016/j.jeurceramsoc.2006.04.122 ER -
@article{ author = "Uskoković, Petar and Tang, C. Y. and Tsui, C. P. and Ignjatović, Nenad and Uskoković, Dragan", year = "2007", abstract = "Biocomposites with ceramic fillers and polymer matrix are becoming attractive materials for bone tissue replacements. Nanoindentation has been used to locally characterize the surface mechanical properties of the hydroxyapatite/pOly-L-lactide (HAp/PLLA) biocomposite. Additionally, differences in the mechanical properties of HAP phase were successfully characterized as a function of surface morphology by using a highresolution modulus mapping technique. HAP granules consist of agglomerates of grainy clusters. Mechanical properties of ceramic grains and PLLA are in fair agreement with literature data. High-resolution methods were able to measure the properties of boundary phases between grains and the pore regions between particles in the agglomerate. After short-time immersion in distilled water, material surface showed a large decrease in storage modulus.", publisher = "Elsevier Sci Ltd, Oxford", journal = "Journal of the European Ceramic Society", title = "Micromechanical properties of a hydroxyapatite/poly-L-lactide biocomposite using nanoindentation and modulus mapping", pages = "1564-1559", number = "2-3", volume = "27", doi = "10.1016/j.jeurceramsoc.2006.04.122" }
Uskoković, P., Tang, C. Y., Tsui, C. P., Ignjatović, N.,& Uskoković, D.. (2007). Micromechanical properties of a hydroxyapatite/poly-L-lactide biocomposite using nanoindentation and modulus mapping. in Journal of the European Ceramic Society Elsevier Sci Ltd, Oxford., 27(2-3), 1559-1564. https://doi.org/10.1016/j.jeurceramsoc.2006.04.122
Uskoković P, Tang CY, Tsui CP, Ignjatović N, Uskoković D. Micromechanical properties of a hydroxyapatite/poly-L-lactide biocomposite using nanoindentation and modulus mapping. in Journal of the European Ceramic Society. 2007;27(2-3):1559-1564. doi:10.1016/j.jeurceramsoc.2006.04.122 .
Uskoković, Petar, Tang, C. Y., Tsui, C. P., Ignjatović, Nenad, Uskoković, Dragan, "Micromechanical properties of a hydroxyapatite/poly-L-lactide biocomposite using nanoindentation and modulus mapping" in Journal of the European Ceramic Society, 27, no. 2-3 (2007):1559-1564, https://doi.org/10.1016/j.jeurceramsoc.2006.04.122 . .