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Article: AE monitoring of microdamage during proof test of bioceramics for artificial joints.
- Article from:
- Journal of Acoustic Emission
- Article date:
- January 1, 2006
- Author:
CopyrightCOPYRIGHT 2006 Acoustic Emission Group. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Abstract
AE monitoring was conducted during proof tests of high-purity alumina ceramics in order to detect microdamages, which might decrease the strength of surviving components. The ceramics tested is the bioceramics used in artificial joints for total hip replacement. Surviving specimens showed two types of AE behavior, with or without increasing point of AE energy. Specimens without increasing point of AE energy showed higher residual strength than specimens with the AE increasing point. In addition, the average strength of specimens without increasing point of AE energy was higher than specimens, which survived the conventional proof test. The AE source ...