Nanomechanical properties evaluation of bioactive glass coatings on titanium alloy substrate
Samo za registrovane korisnike
2006
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
Bioinert metallic implants such as titanium and titanium alloys could be coated with bioactive materials with good adhesion to metal and which could be also bonded to the bone. In order to predict the mechanical behavior of coatings during the implant insertion, mechanical properties of the surface and through the thickness of deposited bioglass coatings are necessary to be studied. We report an investigation of the mechanical characteristics of bioglass coatings using the nanoindentation and nanoscratch techniques. The coating topography with residual imprints was analyzed by in situ imaging method. The dependence of the friction coefficient on load in constant and ramped load tests as well as on the scratch speed is compared. Elastic modulus and hardness results after indentation on the coating surface with higher loads showed more consistent results with less pile up around imprints. The nanohardness and reduced elastic modulus of the coating is in the expected boundaries of theoret...ical values for glass and alloy with a moderate distribution through the coating thickness. Nanoscratch testing showed that the surface deform plastically with no visible debris or cracks.
Ključne reči:
bioglass coating / nanoindentation / nanoscratchIzvor:
Journal of Optoelectronics and Advanced Materials, 2006, 8, 3, 1194-1199Izdavač:
- Natl Inst Optoelectronics, Bucharest-Magurele
Institucija/grupa
Tehnološko-metalurški fakultetTY - JOUR AU - Tang, C. Y. AU - Tsui, C. P. AU - Janaćković, Đorđe AU - Uskoković, Petar PY - 2006 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/878 AB - Bioinert metallic implants such as titanium and titanium alloys could be coated with bioactive materials with good adhesion to metal and which could be also bonded to the bone. In order to predict the mechanical behavior of coatings during the implant insertion, mechanical properties of the surface and through the thickness of deposited bioglass coatings are necessary to be studied. We report an investigation of the mechanical characteristics of bioglass coatings using the nanoindentation and nanoscratch techniques. The coating topography with residual imprints was analyzed by in situ imaging method. The dependence of the friction coefficient on load in constant and ramped load tests as well as on the scratch speed is compared. Elastic modulus and hardness results after indentation on the coating surface with higher loads showed more consistent results with less pile up around imprints. The nanohardness and reduced elastic modulus of the coating is in the expected boundaries of theoretical values for glass and alloy with a moderate distribution through the coating thickness. Nanoscratch testing showed that the surface deform plastically with no visible debris or cracks. PB - Natl Inst Optoelectronics, Bucharest-Magurele T2 - Journal of Optoelectronics and Advanced Materials T1 - Nanomechanical properties evaluation of bioactive glass coatings on titanium alloy substrate EP - 1199 IS - 3 SP - 1194 VL - 8 UR - https://hdl.handle.net/21.15107/rcub_technorep_878 ER -
@article{ author = "Tang, C. Y. and Tsui, C. P. and Janaćković, Đorđe and Uskoković, Petar", year = "2006", abstract = "Bioinert metallic implants such as titanium and titanium alloys could be coated with bioactive materials with good adhesion to metal and which could be also bonded to the bone. In order to predict the mechanical behavior of coatings during the implant insertion, mechanical properties of the surface and through the thickness of deposited bioglass coatings are necessary to be studied. We report an investigation of the mechanical characteristics of bioglass coatings using the nanoindentation and nanoscratch techniques. The coating topography with residual imprints was analyzed by in situ imaging method. The dependence of the friction coefficient on load in constant and ramped load tests as well as on the scratch speed is compared. Elastic modulus and hardness results after indentation on the coating surface with higher loads showed more consistent results with less pile up around imprints. The nanohardness and reduced elastic modulus of the coating is in the expected boundaries of theoretical values for glass and alloy with a moderate distribution through the coating thickness. Nanoscratch testing showed that the surface deform plastically with no visible debris or cracks.", publisher = "Natl Inst Optoelectronics, Bucharest-Magurele", journal = "Journal of Optoelectronics and Advanced Materials", title = "Nanomechanical properties evaluation of bioactive glass coatings on titanium alloy substrate", pages = "1199-1194", number = "3", volume = "8", url = "https://hdl.handle.net/21.15107/rcub_technorep_878" }
Tang, C. Y., Tsui, C. P., Janaćković, Đ.,& Uskoković, P.. (2006). Nanomechanical properties evaluation of bioactive glass coatings on titanium alloy substrate. in Journal of Optoelectronics and Advanced Materials Natl Inst Optoelectronics, Bucharest-Magurele., 8(3), 1194-1199. https://hdl.handle.net/21.15107/rcub_technorep_878
Tang CY, Tsui CP, Janaćković Đ, Uskoković P. Nanomechanical properties evaluation of bioactive glass coatings on titanium alloy substrate. in Journal of Optoelectronics and Advanced Materials. 2006;8(3):1194-1199. https://hdl.handle.net/21.15107/rcub_technorep_878 .
Tang, C. Y., Tsui, C. P., Janaćković, Đorđe, Uskoković, Petar, "Nanomechanical properties evaluation of bioactive glass coatings on titanium alloy substrate" in Journal of Optoelectronics and Advanced Materials, 8, no. 3 (2006):1194-1199, https://hdl.handle.net/21.15107/rcub_technorep_878 .