Article | REF: MED7100 V1

Ceramic biomaterials for orthopaedic prostheses

Authors: Laurent GREMILLARD, Jérôme CHEVALIER

Publication date: January 10, 2016

You do not have access to this resource.
Click here to request your free trial access!

Already subscribed? Log in!


Français

5. Components for alumina-zirconia prostheses

The development of zirconia reached its limits due to –– problems of accelerated degradation. In response, new alumina-zirconia composites were developed (in the late 1990s). In this section, the main aspects of these composites - microstructure, mechanical properties and durability - are examined, and possible optimization paths are proposed.

The idea behind alumina-zirconia composites was to exploit the advantages of two materials: the hardness and chemical inertness of alumina, and the phase-transformation reinforcement of zirconia. The most common way of achieving this is to create a homogeneous dispersion of zirconia grains in an alumina matrix (this produces a material known as "ZTA" (Zirconia-Toughened Alumina ). A crack propagating in such a material causes the q-m transformation of the zirconia grains, and is therefore slowed down by the compressive stresses...

You do not have access to this resource.

Exclusive to subscribers. 97% yet to be discovered!

You do not have access to this resource.
Click here to request your free trial access!

Already subscribed? Log in!


The Ultimate Scientific and Technical Reference

A Comprehensive Knowledge Base, with over 1,200 authors and 100 scientific advisors
+ More than 10,000 articles and 1,000 how-to sheets, over 800 new or updated articles every year
From design to prototyping, right through to industrialization, the reference for securing the development of your industrial projects

This article is included in

Healthcare technologies

This offer includes:

Knowledge Base

Updated and enriched with articles validated by our scientific committees

Services

A set of exclusive tools to complement the resources

Practical Path

Operational and didactic, to guarantee the acquisition of transversal skills

Doc & Quiz

Interactive articles with quizzes, for constructive reading

Subscribe now!

Ongoing reading
Components for alumina-zirconia prostheses