Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/41701

Title

Thermal spraying of hydroxyapatite for bioceramic applications

Author(s)

Gross, Karlis A.;  Berndt, Christopher C.

Abstract

Ceramics that can be used for substitution within the body may be termed as bioceramics. Bioceramics are usually favoured over other materials because their composition mimics the body more closely than polymers or alloys. They offer one of the following responses. They can behave as an inert ceramic exhibiting very little dissolution, as a surface-active ceramic which forms a very strong biological bond after a small amount of dissolution or, as a resorbable ceramic which completely dissolves within a predestined time. There has been much interest in manufacturing HAp in the form of coatings and bulk materials. Coating techniques such as hot isostatic pressing, electrophoretic deposition, physical vapour deposition, frit enamelling and sol-gel deposition have all been used to produce HAp coatings but plasma spraying is the most promising. Molten HAp powder can be deposited onto a substrate by passing the powder through a plasma-arc. Plasma spraying is a flexible process which enables the production of coatings with different porosities and mechanical properties on almost any substrate material.

Publication type

Journal article

Source

Key Engineering Materials, Vol. 53-55 (1991), pp. 124-129

Publication year

1991

Keyword(s)

Bioceramics;  Biomaterials;  Ceramic materials;  Coatings;  Hydroxyapatite;  Molten hydroxyapatite powder;  Plasma spraying;  Powders;  Thermal spraying

Publisher

Trans Tech Publications

ISSN

0252-1059

Publisher URL

http://www.scientific.net/0-87849-608-4/124/

Copyright

Copyright © (1991) Trans Tech Publications, Switzerland.

Peer reviewed