1. Spherical instrumented indentation as a tool to characterize porous bioceramics and their resorption
- Author
-
Marta Gallo, P. Clement, Jérôme Chevalier, Sylvain Meille, Solène Tadier, Matériaux, ingénierie et science [Villeurbanne] (MATEIS), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National des Sciences Appliquées de Lyon (INSA Lyon), and Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)
- Subjects
Instrumented indentation ,Materials science ,Porous ceramics ,Experimental techniques ,Mechanical properties ,02 engineering and technology ,Bone ,Resorption ,01 natural sciences ,[SPI.MAT]Engineering Sciences [physics]/Materials ,Microporosity ,0103 physical sciences ,Materials Chemistry ,Ability testing ,Ceramic ,Porous bioceramic ,Composite material ,Porosity ,010302 applied physics ,Local scale ,Bioceramics ,Microporous material ,Compression testing ,Microstructural changes ,021001 nanoscience & nanotechnology ,Compression (physics) ,visual_art ,Ceramics and Composites ,visual_art.visual_art_medium ,Superior technique ,Tomography ,Indentation ,0210 nano-technology ,X-ray tomography - Abstract
cited By 0; Resorbable ceramics used as porous bone substitutes are designed to favor bone in-growth and to be gradually replaced by natural tissues after in vivo resorption. However, a lack of experimental techniques to quantitatively monitor the evolution of their mechanical properties during resorption is noted. In this paper, we propose to use spherical instrumented indentation to follow-up the resorption of microporous resorbable ceramics at a local scale. Tests were performed at the core and at the surface of samples immersed for different durations in model fluids. Instrumented indentation was found to be an efficient technique to characterize and to follow-up the resorption of microporous ceramics, in excellent agreement with microstructural changes observed with X-ray diffraction and X-ray tomography. Instrumented indentation has the ability to capture the presence of gradients in the samples, enables the direct testing of wet samples and appears as a superior technique to compression tests mostly used in the literature. © 2019 Elsevier Ltd
- Published
- 2019
- Full Text
- View/download PDF