Investigation of microwave sintering of B-type carbonated hydroxyapatite bioceramics - Mines Saint-Étienne
Article Dans Une Revue Solid State Phenomena Année : 2023

Investigation of microwave sintering of B-type carbonated hydroxyapatite bioceramics

Résumé

B-type carbonated hydroxyapatite (CBHA) is potentially an excellent biodegradable bioceramic for bone repair. However, conventional sintering results in formation of undesired phases. Therefore, microwave sintering of CBHA was investigated to assess the possibility to reduce formation of unwanted phases. Pellets with 0.8 mol% of B-type carbonate were sintered in a multimode instrumented cavity under static air with short thermal cycles. They were prepared from a CBHA powder alone and from a mixture of CBHA and carbon powder to generate a local in-situ CO2 atmosphere. XRD, FT-IR, SEM and BET analyses indicated that CBHA densification with increase temperature lead to decomposition into apatite. The addition of carbon powder to the CBHA that generate a CO2-rich atmosphere around the samples did not prevent the decomposition. Efficient control of temperature and atmosphere composition is required to improve microwave sintering of CBHA bioceramics.
Fichier principal
Vignette du fichier
CP Solid State Phenomena 2023.pdf (1.36 Mo) Télécharger le fichier
Origine Fichiers produits par l'(les) auteur(s)

Dates et versions

emse-03925148 , version 1 (05-01-2023)

Identifiants

Citer

Clémence Petit, Arnaud Le Tiec, Louis Pancrazi, Nathalie Douard. Investigation of microwave sintering of B-type carbonated hydroxyapatite bioceramics. Solid State Phenomena, 2023, 340, pp.119 à 130. ⟨10.4028/p-isy443⟩. ⟨emse-03925148⟩
42 Consultations
71 Téléchargements

Altmetric

Partager

More