Ceramics-Silikáty 52, (3) 130 - 138 (2008) |
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ADHESION OF THE BIOACTIVE LAYER ON TITANIUM ALLOY SUBSTRATE BY TAPE-TEST
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Horkavcová Diana 1, Plešingerová Beatrice 2, Helebrant Aleš 1,
Vojtko Marek 3,
Procházka Václav 1
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1 Department of Glass and Ceramics, Institute of Chemical Technology, Prague,
Technická 5, 166 28 Prague Czech Republic
2 Department of Ceramics, Faculty of Metallurgy, Technical University of Košice,
Letná 9/A, 040 02 Košice, Slovak Republic
3 Department of Material Sciences, Faculty of Metallurgy, Technical University of Košice,
Letná 9/A, 040 02 Košice, Slovak Republic
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Keywords: Adhesion, Tape-test, Ti6Al4V, Surface treatment, Precalcification
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The aim of this work was to check whether the ASTM D 3359 is a suitable method for adhesion measurement of the layers
formed on Ti6Al4V surfaces by a) alkali treatment in 10 mol/l NaOH, b) precalcification in SCS (supersaturated calcification
solution) and c) in vitro tests in SBF (simulated body fluid). Tape-test is suitable for evaluation of adhesion of coatings after
chemical treatment and after short-time precalcification. Adhesion of the coatings is excellent, classified into category 5. The
test is not suitable for coatings precalcified for the long time when the big spherical crystals are formed. The cracking of the
coatings during drying of samples inhibits obtaining reliable results of adhesion of HA-coatings to substrate after in vitro
tests. |
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