Title :

Mechanical Properties of Porosity-Free Beta Tricalcium Phosphate (<i>β</i>-TCP) Ceramic by Sharp and Spherical Indentations

Author(s) :

Chicot, Didier [Auteur]
Laboratoire de Génie Civil et Géo-Environnement (LGCgE) - ULR 4515 [LGCgE]
Laboratoire de Mécanique de Lille - FRE 3723 [LML]
Tricoteaux, Arnaud [Auteur]
Laboratoire des matériaux et procédés [LMP]
Lesage, J. [Auteur]
Leriche, Anne [Auteur]
Laboratoire des Matériaux Céramiques et Procédés Associés - EA 2443 [LMCPA]
Descamps, Michel [Auteur]
Laboratoire des matériaux et procédés [LMP]
Rguiti-Constantin, E. [Auteur]

Journal title :

New Journal of Glass and Ceramics

Pages :

16-28

Publication date :

2013

English keyword(s) :

β-TCP Ceramic
Indentation
Bulk Modulus
Hardness
Tensile Properties

HAL domain(s) :

Sciences de l'ingénieur [physics]

English abstract : [en]

Instrumented indentation has been developed for determining the mechanical properties of materials but an accurate determination of these properties requires attention on contact stiffness analysis, indentation size effect, ...
Show more >Instrumented indentation has been developed for determining the mechanical properties of materials but an accurate determination of these properties requires attention on contact stiffness analysis, indentation size effect, elastic modulus mode of calculation, role of stress distribution around the indent and its introduction in expanding cavity models for tensile mechanical properties determination. In the present work, models for hardness, elastic modulus and plastic properties determination by indentation are briefly reviewed and applied for the characterization of a porosity-free β-TCP bioceramic. As a main result the elastic modulus is found to be equal to 162 GPa resulting from the application of different approaches based on the use of various sharp and spherical indenters. Additionally, Martens and contact macrohardnesses were found to be independent on the dwell-time and equals to 4.1 and 6.3 GPa, respectively. Finally, models based on Hollomon’s and Ludwik’s laws as well as expanding cavity models were critically analyzed in light of their capacity to determine the yield stress and to represent the behavior law of the material. As a main result, the yield stress of the β-TCP is found to be equal to 2 GPa.Show less >

Language :

Anglais

Peer reviewed article :

Oui

Audience :

Internationale

Popular science :

Non

Collections :

• Laboratoire Génie Civil et géo-Environnement (LGCgE) - ULR 4515

Source :

Harvested from HAL

Submission date :

2025-02-26T10:36:13Z