USE OF FRACTURE-MECHANICS THEORY IN LIFETIME PREDICTIONS FOR ALUMINA AND BIOGLASS-COATED ALUMINA

被引：28

作者：

RITTER, JE ^{[1
]}

GREENSPAN, DC ^{[1
]}

PALMER, RA ^{[1
]}

HENCH, LL ^{[1
]}

机构：

[1] UNIV FLORIDA,DEPT MAT SCI & ENGN,GAINESVILLE,FL 32611

来源：

JOURNAL OF BIOMEDICAL MATERIALS RESEARCH | 1979年 / 13卷 / 02期

关键词：

BIOGLASS - BIOMATERIALS - STRESS RATE;

D O I：

10.1002/jbm.820130207

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

The fatigue behavior of alumina and bioglass‐coated alumina was determined in air and biological test environments by the dynamic fatigue test technique in which strength is measured as a function of stressing rate. The good correlation found between the test data and fracture mechanics theory indicates that fatigue failure is controlled by the slow crack growth of preexisting flaws and that fracture mechanics theory can be used in making failure predictions for alumina and bioglass‐coated alumina in biological environments. Thus, it is believed that lifetime predictions can be made for ceramic implants on the basis of short‐term test data utilizing fracture mechanics principles. Copyright © 1979 John Wiley & Sons, Inc.

引用

页码：251 / 263

页数：13

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