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Buchumschlag von Hot Isostatic Pressing (HIPing) of FeCralloy®-Reinforced Hydroxyapatite
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Hot Isostatic Pressing (HIPing) of FeCralloy®-Reinforced Hydroxyapatite

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Bibliographische Detailangaben
Zeitschriftentitel: Journal of Biomimetics, Biomaterials and Tissue Engineering
Personen und Körperschaften: Ehsani, N., Ruys, Andrew J., Sorrell, Charles C.
In: Journal of Biomimetics, Biomaterials and Tissue Engineering, 17, 2013, S. 87-102
Medientyp: E-Article
Sprache: Unbestimmt
veröffentlicht:
Trans Tech Publications, Ltd.
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Zusammenfassung: <jats:p>The goal of this study was to produce hydroxyapatite (HAp), a bioactive biomaterial, in a decomposition-free form with fracture toughness comparable to bone by metal fibre-reinforcement. This goal was ultimately achieved. Glass encapsulation of FeCralloy<jats:sup>®</jats:sup>-reinforced HAp was an unsuccessful technique due to the excessive low-temperature volatilisation, which aerated the glass. Therefore a graphite/stainless steel encapsulation system was used in the present study. Hot isostatic pressing enabled the production of fully dense decomposition-free HAp with toughness improvements of 14 times (FeCralloy<jats:sup>®</jats:sup> fibres, optimally 15 vol%), comparable to cortical bone. Further, it was found that the HAp decomposition temperature was higher at 100 MPa (the HIPing pressure) than for pressureless sintering. Addition of the FeCralloy<jats:sup>®</jats:sup> fibre additive induced significant plastic deformation and ductile fracture of the hydroxyapatite.</jats:p>
Umfang: 87-102
ISSN: 1662-100X
DOI: 10.4028/www.scientific.net/jbbte.17.87