Mechanical characterization of brushite and hydroxyapatite cements

Charrière, Eric; Terrazzoni, S; Pittet, C; Mordasini, Philippe; Dutoit, M; Lemaître, J; Zysset, Philippe (2001). Mechanical characterization of brushite and hydroxyapatite cements. Biomaterials, 22(21), pp. 2937-45. Oxford: Elsevier 10.1016/S0142-9612(01)00041-2

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Compression, tension and torsion tests were designed and completed successfully on a brushite and a precipitated hydroxyapatite cement in moist condition. Elastic and strength properties were measured for these three loading cases. For each cement, the full set of strength data was fitted to an isotropic Tsai-Wu criterion and the associated coefficients identified. Since the compressive Young's moduli were about 10% larger than the tensile moduli, the full set of elastic data of each cement was fitted to a conewise linear elastic model. Hysteresis of the stress-strain curves was also observed, indicating dissipation mechanisms within these cement microstructures. A comparison of the measured mechanical properties with human cancellous bone confirmed the indication of brushite as a bone filling material and the potential of the hydroxyapatite cement as a structural biomaterial.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > Pre-clinic Human Medicine > Institute for Surgical Technology & Biomechanics ISTB

UniBE Contributor:

Zysset, Philippe

Subjects:

500 Science > 570 Life sciences; biology
600 Technology > 610 Medicine & health

ISSN:

0142-9612

Publisher:

Elsevier

Language:

English

Submitter:

Factscience Import

Date Deposited:

04 Oct 2013 15:21

Last Modified:

29 Jan 2015 00:06

Publisher DOI:

10.1016/S0142-9612(01)00041-2

PubMed ID:

11561900

Web of Science ID:

000170820000014

Uncontrolled Keywords:

Brushite; Calcium phosphate cement; Elasticity; Hydroxyapatite; Mechanical properties; Strength criterion

BORIS DOI:

10.7892/boris.36420

URI:

https://boris.unibe.ch/id/eprint/36420 (FactScience: 204649)

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