Substrate preheating and structural properties of power plasma sprayed hydroxyapatite coatings
Само за регистроване кориснике
2016
Аутори
Gligorijević, BojanVilotijević, Miroljub N.
Scepanović, Maja
Vuković, Nikola S.
Radović, Nenad
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
The aim of the present study was to investigate the influence of substrate preheating on the structural properties of hydroxyapatite coatings (HACs) deposited by using the high power (52 kW) laminar plasma jet. The deposition experiments were performed within the 20-200 degrees C temperature range at different stand-off distances. The structural properties in the thickness direction and at the surface of the HACs were investigated by using the micro-Raman spectroscopy, scanning electron microscopy coupled with energy dispersive spectrometry, and X-ray powder diffractometry. The deposition without the preheating of the substrate produced HACs with crystallinity gradient in the thickness direction. At the stand-off distance of 80 mm, the preheating of the substrate at 200 degrees C practically eliminated the crystallinity gradient. At distances from the coating/substrate interface shorter than similar to 100 mu m, the increase of crystallinity with the preheating of the substrate was dom...inantly attributed to the recrystallization of hydroxyl-rich ACP into HA. At longer distances and higher initial substrate temperatures ( gt 100 degrees C), the crystallinity changes were negligible, whereas the recrystallization of hydroxyl-deficient ACP into oxyapatite (OA) was also possible. The X-ray diffractometry indicated the deposition conditions under which a minimum residual stress was achieved. The results of the present study strongly suggested the relation between the ACP - gt HA remystallization process and the bonding strength of the HACs.
Кључне речи:
Hydroxyapatite coatings / Plasma spraying / Substrate preheating / Structural properties / Micro-Raman spectroscopyИзвор:
Ceramics International, 2016, 42, 1, 411-420Издавач:
- Elsevier Sci Ltd, Oxford
Финансирање / пројекти:
- Plasma Jet Co., Serbia
- Синтеза дијамантских превлака из пламена угљоводоника техником равног пламена (RS-MESTD-Technological Development (TD or TR)-34022)
DOI: 10.1016/j.ceramint.2015.08.125
ISSN: 0272-8842
WoS: 000365369500046
Scopus: 2-s2.0-84945283932
Колекције
Институција/група
Tehnološko-metalurški fakultetTY - JOUR AU - Gligorijević, Bojan AU - Vilotijević, Miroljub N. AU - Scepanović, Maja AU - Vuković, Nikola S. AU - Radović, Nenad PY - 2016 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3403 AB - The aim of the present study was to investigate the influence of substrate preheating on the structural properties of hydroxyapatite coatings (HACs) deposited by using the high power (52 kW) laminar plasma jet. The deposition experiments were performed within the 20-200 degrees C temperature range at different stand-off distances. The structural properties in the thickness direction and at the surface of the HACs were investigated by using the micro-Raman spectroscopy, scanning electron microscopy coupled with energy dispersive spectrometry, and X-ray powder diffractometry. The deposition without the preheating of the substrate produced HACs with crystallinity gradient in the thickness direction. At the stand-off distance of 80 mm, the preheating of the substrate at 200 degrees C practically eliminated the crystallinity gradient. At distances from the coating/substrate interface shorter than similar to 100 mu m, the increase of crystallinity with the preheating of the substrate was dominantly attributed to the recrystallization of hydroxyl-rich ACP into HA. At longer distances and higher initial substrate temperatures ( gt 100 degrees C), the crystallinity changes were negligible, whereas the recrystallization of hydroxyl-deficient ACP into oxyapatite (OA) was also possible. The X-ray diffractometry indicated the deposition conditions under which a minimum residual stress was achieved. The results of the present study strongly suggested the relation between the ACP - gt HA remystallization process and the bonding strength of the HACs. PB - Elsevier Sci Ltd, Oxford T2 - Ceramics International T1 - Substrate preheating and structural properties of power plasma sprayed hydroxyapatite coatings EP - 420 IS - 1 SP - 411 VL - 42 DO - 10.1016/j.ceramint.2015.08.125 ER -
@article{ author = "Gligorijević, Bojan and Vilotijević, Miroljub N. and Scepanović, Maja and Vuković, Nikola S. and Radović, Nenad", year = "2016", abstract = "The aim of the present study was to investigate the influence of substrate preheating on the structural properties of hydroxyapatite coatings (HACs) deposited by using the high power (52 kW) laminar plasma jet. The deposition experiments were performed within the 20-200 degrees C temperature range at different stand-off distances. The structural properties in the thickness direction and at the surface of the HACs were investigated by using the micro-Raman spectroscopy, scanning electron microscopy coupled with energy dispersive spectrometry, and X-ray powder diffractometry. The deposition without the preheating of the substrate produced HACs with crystallinity gradient in the thickness direction. At the stand-off distance of 80 mm, the preheating of the substrate at 200 degrees C practically eliminated the crystallinity gradient. At distances from the coating/substrate interface shorter than similar to 100 mu m, the increase of crystallinity with the preheating of the substrate was dominantly attributed to the recrystallization of hydroxyl-rich ACP into HA. At longer distances and higher initial substrate temperatures ( gt 100 degrees C), the crystallinity changes were negligible, whereas the recrystallization of hydroxyl-deficient ACP into oxyapatite (OA) was also possible. The X-ray diffractometry indicated the deposition conditions under which a minimum residual stress was achieved. The results of the present study strongly suggested the relation between the ACP - gt HA remystallization process and the bonding strength of the HACs.", publisher = "Elsevier Sci Ltd, Oxford", journal = "Ceramics International", title = "Substrate preheating and structural properties of power plasma sprayed hydroxyapatite coatings", pages = "420-411", number = "1", volume = "42", doi = "10.1016/j.ceramint.2015.08.125" }
Gligorijević, B., Vilotijević, M. N., Scepanović, M., Vuković, N. S.,& Radović, N.. (2016). Substrate preheating and structural properties of power plasma sprayed hydroxyapatite coatings. in Ceramics International Elsevier Sci Ltd, Oxford., 42(1), 411-420. https://doi.org/10.1016/j.ceramint.2015.08.125
Gligorijević B, Vilotijević MN, Scepanović M, Vuković NS, Radović N. Substrate preheating and structural properties of power plasma sprayed hydroxyapatite coatings. in Ceramics International. 2016;42(1):411-420. doi:10.1016/j.ceramint.2015.08.125 .
Gligorijević, Bojan, Vilotijević, Miroljub N., Scepanović, Maja, Vuković, Nikola S., Radović, Nenad, "Substrate preheating and structural properties of power plasma sprayed hydroxyapatite coatings" in Ceramics International, 42, no. 1 (2016):411-420, https://doi.org/10.1016/j.ceramint.2015.08.125 . .