Abstract
A new technique to fix bioceramic powder on a titanium alloy by using
femtosecond laser pulses is presented. It is shown that gentle fixation
of a bioactive dielectric material on a metallic model implant is
successful. This is potentially a new tool for the improvement of bone
prostheses. An advantage of the ultra-short pulses is the very low heat
influx into the whole sample. There is only a very thin interaction zone
during the fixing, which is the metal surface in contact with the
ceramic layer. Both the fixed ceramic particles and the major part of
the metal do not suffer any modification. The stability of the model
implant (ceramic on metal) is investigated by rotating bending fatigue
tests. No indication of a reduction of the mechanical stability compared
to untreated metallic reference samples was found.