Development and Characterization of Hydroxyapatite-Alumina Biocomposites for Orthopedic Implants
| Autor: | E.K. Hlil, Abdelowahed Hajjaji, Said Laasri, Mohammed Es-Saddik, Taha Mohammed, Abdelaziz Laghzizil |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
medicine.medical_specialty
Materials science Mechanical Engineering 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Characterization (materials science) Mechanics of Materials Orthopedic surgery medicine General Materials Science 0210 nano-technology Biomedical engineering |
| Zdroj: | Key Engineering Materials. 820:97-103 |
| ISSN: | 1662-9795 |
| DOI: | 10.4028/www.scientific.net/kem.820.97 |
| Popis: | Hydroxyapatite-Alumina composite powders, HAP-Al2O3, for biomedical applications were synthesized by neutralization method. Composites with different alumina content were prepared and calcined over the temperature range of 900-1300°C for 3 h. Effects of alumina content and calcination on the structural properties of powders were studied. The as-received powders and ceramics were characterized by various techniques (XRD, IR, SEM, TEM). Compressive strength of ceramics was determined using direct compressing. Results indicate that both crystallinity of the HAp-Al2O3 powders and the compressive strength increased with the temperature of calcination, but depending of the alumina content where the formation of β-TCP phase as secondary phase is detected after heat treatment. We notice that HAp-10Al2O3 offers the best mechanical strengths that can be improved by a high calcination temperature. |
| Databáze: | OpenAIRE |
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