Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7207969 | Journal of the Mechanical Behavior of Biomedical Materials | 2016 | 8 Pages |
Abstract
This study initially deals with the investigation of the induced strains during hardening stage of a self-setting calcium phosphate bone cement using fiber-Bragg grating (FBG) optical sensors. A complementary Scanning Electron Microscopy (SEM) investigation was also conducted at different time intervals of the hardening period and its findings were related to the FBG recordings. From the obtained results, it is demonstrated that the FBG response is affected by the microstructural changes taking place when the bone cement is immersed into the hardening liquid media. Subsequently, the FBG sensor was used to monitor the absorption process and hygroscopic response of the hardened and dried biocement when exposed to a liquid/humid environment. From the FBG-based calculated hygric strains as a function of moisture concentration, the coefficient of moisture expansion (CME) of the examined bone cement was obtained, exhibiting two distinct linear regions.
Related Topics
Physical Sciences and Engineering
Engineering
Biomedical Engineering
Authors
A. Bimis, D. Karalekas, N. Bouropoulos, D. Mouzakis, S. Zaoutsos,