Title :
Design of Ti/HA biomedical implants using ion-beam-assisted deposition
Author_Institution :
Coll. of Stomatology, West China Univ. of Med. Sci., Chengdu
fDate :
29 Oct-1 Nov 1998
Abstract :
Hydroxy-apatite (Ca10(PO4)6(OH) 2, HA), owing to its bioaffinity and osteo-integration to the body, is a potential material for coating metal implants. At present, in addition to bulk HA directly used in restoration and reconstructive surgery, hydroxy-apatite is also coated on metal implants by the plasma-spraying method, adhesion and sintering. However, these kinds of biomaterials are restricted in application due to their insufficient strength and weak bonding between substrate and coating. It is of great advantage to modify the surface of titanium and its alloy by ion-beam-assisted deposition (IBAD) combining ion implantation with physical vapor deposition (PVD). This paper is focused on the design of Ti/HA implants by ion-beam-assisted deposition technique and the computation of fabricating parameter using the Trim 96 program. The present investigation lays a foundation for further research and application
Keywords :
biomedical materials; ion beam assisted deposition; orthopaedics; prosthetics; titanium; vapour deposited coatings; Ca10(PO4)6(OH)2; Ti; Ti/HA biomedical implants design; Trim 96 program; adhesion; bioaffinity; biomaterials; fabricating parameter computation; hydroxy-apatite; insufficient strength; metal implant coating; osteointegration; physical vapor deposition; plasma-spraying method; reconstructive surgery; restoration and reconstructive surgery; sintering; weak bonding; Adhesives; Biological materials; Biomedical materials; Coatings; Implants; Inorganic materials; Plasma applications; Plasma immersion ion implantation; Plasma materials processing; Surgery;
Conference_Titel :
Engineering in Medicine and Biology Society, 1998. Proceedings of the 20th Annual International Conference of the IEEE
Conference_Location :
Hong Kong
Print_ISBN :
0-7803-5164-9
DOI :
10.1109/IEMBS.1998.746090
