TY - GEN
T1 - Effect of surface topography and chemical composition on wettability of calcium phosphate coatings formed on Ti-40Nb alloy
AU - Komarova, Ekaterina
AU - Chebodaeva, Valentina
AU - Sharkeev, Yurii
AU - Sedelnikova, Maria
PY - 2016/1/1
Y1 - 2016/1/1
N2 - The influence of the microarc oxidation parameters as electrical voltage and process duration on the surface morphology and topography, wettability and chemical composition of calcium phosphate coatings on the low elastic module Ti-40mas.%Nb (Ti-40Nb) alloy surface has been investigated. The linear growth of thickness and roughness and linear decrease of free surface energy with increasing process electrical voltage have been obtained. It was shown that calcium phosphate coatings have low contact angle with liquids and consequently high free surface energy. It indicates a high hydrophilicity. X-ray diffraction analyses showed that the coatings after deposition have X-ray amorphous state that indicates high rate of coating dissolution. The coatings have maximum Ca/P ratio of 0.6. The optimal range of the oxidation voltage from 200 to 250 V and process duration from 5 to 10 min have been found. Such parameters allow to form the coating with the specific morphology, roughness and thickness and high hydrophylicity.
AB - The influence of the microarc oxidation parameters as electrical voltage and process duration on the surface morphology and topography, wettability and chemical composition of calcium phosphate coatings on the low elastic module Ti-40mas.%Nb (Ti-40Nb) alloy surface has been investigated. The linear growth of thickness and roughness and linear decrease of free surface energy with increasing process electrical voltage have been obtained. It was shown that calcium phosphate coatings have low contact angle with liquids and consequently high free surface energy. It indicates a high hydrophilicity. X-ray diffraction analyses showed that the coatings after deposition have X-ray amorphous state that indicates high rate of coating dissolution. The coatings have maximum Ca/P ratio of 0.6. The optimal range of the oxidation voltage from 200 to 250 V and process duration from 5 to 10 min have been found. Such parameters allow to form the coating with the specific morphology, roughness and thickness and high hydrophylicity.
KW - Calcium phosphate coating
KW - Hydrophilicity
KW - Microarc oxidation
KW - Wettability
UR - http://www.scopus.com/inward/record.url?scp=84959084962&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84959084962&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/KEM.683.370
DO - 10.4028/www.scientific.net/KEM.683.370
M3 - Conference contribution
AN - SCOPUS:84959084962
SN - 9783038357292
T3 - Key Engineering Materials
SP - 370
EP - 376
BT - Multifunctional Materials
PB - Trans Tech Publications Ltd
T2 - 12th International Conference on Prospects of Fundamental Sciences Development, PFSD 2015
Y2 - 21 April 2015 through 24 April 2015
ER -