Design of Ti/HA biomedical implants using ion-beam-assisted deposition

Author

Wang Changxiang

Author_Institution

Coll. of Stomatology, West China Univ. of Med. Sci., Chengdu

Volume

6

fYear

1998

fDate

29 Oct-1 Nov 1998

Firstpage

2890

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 1998. Proceedings of the 20th Annual International Conference of the IEEE

Conference_Location

Hong Kong

ISSN

1094-687X

Print_ISBN

0-7803-5164-9

Type

conf

DOI

10.1109/IEMBS.1998.746090

Filename

746090