Calcium Titanate Reaction Layers on TiAl6V4 Implants
Discs of TiAl6V4 were cleaned and stored in calcium containing salt melt. The characterization of the reaction layer was realized by TF-XRD, SEM, SIMS, AES, and eddy current. The release of Ca ions was determined after storing the samples in TRIS-HCl buffer solution under physiological conditions for at least 16 weeks. The thickness of the generated calcium titanate layer varied in dependence on salt melt composition, temperature, and storing time in the range of 0.4-0.9.m. The Ca content of the layer depends on melt composition, temperature and storing time and was in the range from 5-42.g●cm-2 in correlation with the thickness. The morphology of the layers also changed in dependence on the salt melt composition and the storing time and temperature.
Guy Daculsi and Pierre Layrolle
U. Ploska et al., "Calcium Titanate Reaction Layers on TiAl6V4 Implants", Key Engineering Materials, Vols. 361-363, pp. 657-660, 2008