Cracking caused by cutting of plasma-sprayed hydroxyapatite coatings and its relation to the structural features of coatings deposited at different initial substrate temperatures
Аутори
Gligorijević, Bojan R.Vilotijević, Miroljub N.
Šćepanović, Maja J.
Radovanovic, Radovan V.
Radović, Nenad A.
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
The present study estimated the cracking phenomenon in as-plasma-sprayed hydroxylapatite coatings (HACs) after they were being subjected to the severe cutting conditions in the direction perpendicular to the coating/substrate interface. In order to evaluate the effects of substrate preheating on the occurrence of micro-cracks, the HACs were deposited at different initial substrate temperatures (T-S = 20, 100 and 200 degrees C). The changes in phase composition and HA splat morphology with T-S were observed and were correlated with the cracking occurrence. The results showed that severe cutting conditions introduced a localized cracking in the regions of HACs dominantly attributed to the brittle hydroxyl- deficient amorphous calcium phosphate (ACP) phase. This effect was particularly observable in the HACs deposited without preheating of substrate. On the other hand, the preheating of substrate reduced the presence of micro-cracks and caused insignificant changes in the average local ph...ase composition. In HACs deposited with preheating of substrate, the HA splats (of which HACs are composed) were thinner and recrystallized HA regions seemed smaller in size and more evenly distributed. These results implied potentially important roles of the HA splat formation mechanism on the distribution of ACP and recrystallized HA regions in the as-plasma-sprayed HACs and the cracking resistance of HACs.
Кључне речи:
plasma spraying / hydroxyapatite coatings / stress / cracking / substrate preheatingИзвор:
Hemijska industrija, 2017, 71, 3, 241-249Финансирање / пројекти:
- Синтеза дијамантских превлака из пламена угљоводоника техником равног пламена (RS-MESTD-Technological Development (TD or TR)-34022)
- Plasma Jet Co., Serbia
DOI: 10.2298/HEMIND160513034G
ISSN: 0367-598X; 2217-7426
WoS: 000407025700007
Scopus: 2-s2.0-85027041947
Колекције
Институција/група
VinčaTY - JOUR AU - Gligorijević, Bojan R. AU - Vilotijević, Miroljub N. AU - Šćepanović, Maja J. AU - Radovanovic, Radovan V. AU - Radović, Nenad A. PY - 2017 UR - https://vinar.vin.bg.ac.rs/handle/123456789/1669 AB - The present study estimated the cracking phenomenon in as-plasma-sprayed hydroxylapatite coatings (HACs) after they were being subjected to the severe cutting conditions in the direction perpendicular to the coating/substrate interface. In order to evaluate the effects of substrate preheating on the occurrence of micro-cracks, the HACs were deposited at different initial substrate temperatures (T-S = 20, 100 and 200 degrees C). The changes in phase composition and HA splat morphology with T-S were observed and were correlated with the cracking occurrence. The results showed that severe cutting conditions introduced a localized cracking in the regions of HACs dominantly attributed to the brittle hydroxyl- deficient amorphous calcium phosphate (ACP) phase. This effect was particularly observable in the HACs deposited without preheating of substrate. On the other hand, the preheating of substrate reduced the presence of micro-cracks and caused insignificant changes in the average local phase composition. In HACs deposited with preheating of substrate, the HA splats (of which HACs are composed) were thinner and recrystallized HA regions seemed smaller in size and more evenly distributed. These results implied potentially important roles of the HA splat formation mechanism on the distribution of ACP and recrystallized HA regions in the as-plasma-sprayed HACs and the cracking resistance of HACs. T2 - Hemijska industrija T1 - Cracking caused by cutting of plasma-sprayed hydroxyapatite coatings and its relation to the structural features of coatings deposited at different initial substrate temperatures VL - 71 IS - 3 SP - 241 EP - 249 DO - 10.2298/HEMIND160513034G ER -
@article{ author = "Gligorijević, Bojan R. and Vilotijević, Miroljub N. and Šćepanović, Maja J. and Radovanovic, Radovan V. and Radović, Nenad A.", year = "2017", abstract = "The present study estimated the cracking phenomenon in as-plasma-sprayed hydroxylapatite coatings (HACs) after they were being subjected to the severe cutting conditions in the direction perpendicular to the coating/substrate interface. In order to evaluate the effects of substrate preheating on the occurrence of micro-cracks, the HACs were deposited at different initial substrate temperatures (T-S = 20, 100 and 200 degrees C). The changes in phase composition and HA splat morphology with T-S were observed and were correlated with the cracking occurrence. The results showed that severe cutting conditions introduced a localized cracking in the regions of HACs dominantly attributed to the brittle hydroxyl- deficient amorphous calcium phosphate (ACP) phase. This effect was particularly observable in the HACs deposited without preheating of substrate. On the other hand, the preheating of substrate reduced the presence of micro-cracks and caused insignificant changes in the average local phase composition. In HACs deposited with preheating of substrate, the HA splats (of which HACs are composed) were thinner and recrystallized HA regions seemed smaller in size and more evenly distributed. These results implied potentially important roles of the HA splat formation mechanism on the distribution of ACP and recrystallized HA regions in the as-plasma-sprayed HACs and the cracking resistance of HACs.", journal = "Hemijska industrija", title = "Cracking caused by cutting of plasma-sprayed hydroxyapatite coatings and its relation to the structural features of coatings deposited at different initial substrate temperatures", volume = "71", number = "3", pages = "241-249", doi = "10.2298/HEMIND160513034G" }
Gligorijević, B. R., Vilotijević, M. N., Šćepanović, M. J., Radovanovic, R. V.,& Radović, N. A.. (2017). Cracking caused by cutting of plasma-sprayed hydroxyapatite coatings and its relation to the structural features of coatings deposited at different initial substrate temperatures. in Hemijska industrija, 71(3), 241-249. https://doi.org/10.2298/HEMIND160513034G
Gligorijević BR, Vilotijević MN, Šćepanović MJ, Radovanovic RV, Radović NA. Cracking caused by cutting of plasma-sprayed hydroxyapatite coatings and its relation to the structural features of coatings deposited at different initial substrate temperatures. in Hemijska industrija. 2017;71(3):241-249. doi:10.2298/HEMIND160513034G .
Gligorijević, Bojan R., Vilotijević, Miroljub N., Šćepanović, Maja J., Radovanovic, Radovan V., Radović, Nenad A., "Cracking caused by cutting of plasma-sprayed hydroxyapatite coatings and its relation to the structural features of coatings deposited at different initial substrate temperatures" in Hemijska industrija, 71, no. 3 (2017):241-249, https://doi.org/10.2298/HEMIND160513034G . .