ISO 6474-2:2019 外科植入物 陶瓷材料 第2部分：带氧化锆增强的高纯度氧化铝基复合材料

标准编号：ISO 6474-2:2019

中文名称：外科植入物 陶瓷材料 第2部分：带氧化锆增强的高纯度氧化铝基复合材料

英文名称：Implants for surgery — Ceramic materials — Part 2: Composite materials based on a high-purity alumina matrix with zirconia reinforcement

发布日期：2019-03

标准范围

本文件规定了基于氧化锆增强高纯氧化铝基复合材料的生物稳定陶瓷骨替代材料的特性和相应的试验方法，该材料用作骨垫片、骨替代物和矫形关节假体组件。本文件适用于基于氧化铝基体的复合材料，即氧化铝作为复合材料中的主要相，质量分数为>；60%，类似于ISO 6474-1中描述的材料，但通过一定量的氧化锆和其他规定成分进行扩展。注:本文件中要求的性能与ISO 6474-1中的强度和断裂韧性不同。此外，还有专门适用于含氧化锆材料的要求（见ISO 13356）。在本文件中定义的材料成分中，列出了其他添加剂。氧化铝或氧化锆陶瓷的典型添加剂有镁、钇、铈等。此类添加剂可用于改善氧化铝-氧化锆复合材料的机械性能和/或化学稳定性。本文件不包括生物相容性（见ISO 10993-1）。制造商有责任评估在本文件框架内生产的特定陶瓷复合材料的生物相容性。

This document specifies the characteristics of, and corresponding test methods for bio-stable ceramic-bone-substitute material based on a zirconia-reinforced, high-purity alumina matrix composite for use as bone spacers, bone replacements and components in orthopaedic joint prostheses.This document is intended for composite materials which are based on an alumina matrix, i.e. alumina as the dominating phase in the composite with a mass fraction of >60 %, similar to the material described in ISO 6474？1, but extended by means of a certain amount of zirconia and other defined ingredients.NOTE The required properties in this document differ from those in ISO 6474？1 with respect to strength and fracture toughness. Furthermore, there are requirements specifically applicable for zirconia-containing materials (see ISO 13356).In the material composition as defined in this document, additional additives are listed. Typical additives for alumina or zirconia ceramics are Mg, Y, Ce and others. Such additives can be useful in order to improve the mechanical properties and/or the chemical stability of the alumina-zirconia composite material.This document does not cover biocompatibility (see ISO 10993？1). It is the responsibility of the manufacturer to evaluate the biocompatibility of the specific ceramic composite material which is produced within the framework of this document.

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