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Hot Isostatic Pressing (HIPing) of FeCralloy®-Reinforced Hydroxyapatite
Gespeichert in:
Zeitschriftentitel: | Journal of Biomimetics, Biomaterials and Tissue Engineering |
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Personen und Körperschaften: | , , |
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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Schlagwörter: |
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> |
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Umfang: | 87-102 |
ISSN: |
1662-100X
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DOI: | 10.4028/www.scientific.net/jbbte.17.87 |