Related Experiment Video
Updated: Jul 13, 2026

Rapid Mix Preparation of Bioinspired Nanoscale Hydroxyapatite for Biomedical Applications
Published on: February 23, 2017
The influence of residual stress on the shear strength between the bone and plasma-sprayed hydroxyapatite coating
Yung-Chin Yang1, Chyun-Yu Yang
1Department of Materials and Mineral Resources Engineering, Institute of Materials Science and Engineering, National Taipei University of Technology, Taipei, 106, Taiwan ROC. ycyang@ntut.edu.tw
Abstract:
Plasma-sprayed HA coating (HAC) 50 and 200 microm thick on Ti6Al4V cylinders was transcortically implanted in the femora of canines. Push-out testing of implant-bone interfaces showed that the HAC coating exhibited higher shear strength at 50 microm coating than 200 microm one. The plasma-sprayed HACs were exhibited compressive residual stresses and the thicker HAC exhibited higher residual stress than that of the thinner HAC. Due to the structure for 50 and 200 microm implants were the same, meaning similar cohesive strength of the lamellar splats. And, there was no difference in the physiological environment; hence the difference of the shear strength for the 50 and 200 microm-HAC implants could best be attributed to the compressive residual stress existed in the HA coating.
More Related Videos
Related Concept Videos
Residual Stresses
Residual Stresses in Circular Shafts
Shearing Stress
The average shearing stress can be calculated by dividing the shear by the area of the cross-section.

