Adhesion properties of plasma sprayed hydroxylapatite coatings for orthopaedic prostheses
In the development of non-cemented hip joint prostheses and osteo-integrated dental implants, a wide range of surface coatings has been found which favour osteo-integration between the bone and implant. Using air plasma spraying (APS) and vacuum plasma spraying (VPS) techniques, hydroxylapatite (HA) and mixtures of HA and titanium were deposited on a Ti6Al14V alloy (and on an AISI 316L steel) subjected to different surface treatments. The deposits were investigated for their crystallinity, thickness and adhesion properties. Using the VPS technique it is possible to obtain deposits of HA with a large interval of crystallinity (70-90 %) that are more adhesive than those obtained using APS methods.
Bibliographic Reference: Paper presented: ISABE '93, Utsunomiya (JP), September 1-4, 1993
Availability: Available from (1) as Paper EN 37781 ORA
Record Number: 199410543 / Last updated on: 1994-11-28
Original language: en
Available languages: en