Suspension thermal spraying of hydroxyapatite: Microstructure and in vitro behaviour

Bioactive glass/hydroxyapatite composites: Mechanical properties and biological evaluation

“…Among bioceramics, hydroxyapatite (HA) is the most similar material to the mineral component of bones; it exhibits biocompatibility, osteoconductivity and bioactive behaviour, being able to bond to the bone directly. For these reasons, HA has been employed in powder form or granules in many oral, maxillofacial and orthopaedic applications [5,6], and to realize bioactive coatings on metal implants in order to provide them with an osteophilic surface, which promotes a stronger bone-to-implant bonding [7,8]. Unfortunately, although HA is bioactive, its reactivity with existing bone tissue is low.…”

Consolidation of different hydroxyapatite powders by SPS: Optimization of the sintering conditions and characterization of the obtained bulk products

“…Since hydroxyapatite (Ca 10 (PO 4 ) 6 (OH) 2 ), often referred to as HAp or HA, represents the main inorganic component of hard human tissues (bones and teeth), it is not surprising that it is regarded as one of the most investigated ceramics for biomedical application in either bulk form or as coating [1][2][3].…”

Reaction sintering of kaolin-natural phosphate mixtures

“…Furthermore, an endothermic peak is present at about 755°C which may be due to the thermal decomposition of CaCO 3 into CaO and CO 2 [19]. Two exothermic peaks observed at 732°C and 931°C: first one is due to the partial crystallization of HAp [20,21], while the second latter indicates some order in a crystalline formation. Such crystalline formation was attributed either to a spinel formation or others attributed it to mullite nucleation [8,[17][18] [22].…”