The synthesis of a biocomposite based on nickel titanium and hydroxyapatite under selective laser sintering conditions

The conditions of synthesis of a nickel titanium based biocomposite materia l with hydroxyapatite added to the initial Ni-Ti powder mixture were studie d. The material was obtained by a method based on the combination of laser- controlled selective sintering and self-propagating high-temperature synthe sis. The data of X-ray diffraction and electron microscopy indicate that th e high-rate laser heating induces the interaction of hydroxyapatite with ni ckel titanium, which results in the formation of additional intermetallic p hases (NiTi2 , Ni3Ti). (C) 2001 MAIK "Nauka / Interperiodica".