Thang, Le Hong and Bang, L. T. and Long, B. D. and Son, Nguyen Anh and Ramesh, S. (2023) Effect of carbonate contents on the thermal stability and mechanical properties of carbonated apatite artificial bone substitute. Journal of Materials Engineering and Performance, 32 (3). pp. 1006-1016. ISSN 1059-9495, DOI https://doi.org/10.1007/s11665-022-07169-6.
Full text not available from this repository.Abstract
Carbonated apatite is the inorganic component of natural bone while the carbonate ion in the structure influences biological activities and osteoconductivity. However, thermal stability of carbonate apatite is a major importance since thermal stability of carbonate apatite is a function of carbonate content presented in the structure and heat treatment atmosphere. This research work investigates the effects of different carbonate contents on carbonate substitution, thermal stability, physical and mechanical properties of carbonate apatite synthesized by a precipitation method. The results indicated that the carbonate content influenced the properties of carbonated apatite powders. High carbonate substitution (10-11 wt.%) promoted the decomposition of carbonated apatite after heat treatment at 900 degrees C while a low amount of carbonate substitution (approx. 2 wt.%) resulted in the relocation of carbonate group from phosphate site to hydroxyl site without decomposition. It also demonstrated that a high carbonate amount resulted in a superior mechanical performance. Dense carbonated apatite with high carbonate content has achieved a relative density of 97% and a maximum fracture toughness of 1.4 MPa center dot m(1/2). In the contrary, low carbonate content resulted in a compact with high porosity of about 40% and a low toughness value of 0.35 MPa center dot m(1/2) when treatment at 900 degrees C.
| Item Type: | Article |
|---|---|
| Funders: | National Foundation for Science & Technology Development (NAFOSTED) 104.03-2020.36 |
| Uncontrolled Keywords: | carbonate apatite; carbonate ion; mechanical property; thermal stability; toughness |
| Subjects: | T Technology > TJ Mechanical engineering and machinery |
| Divisions: | Faculty of Engineering > Department of Mechanical Engineering |
| Depositing User: | Ms Zaharah Ramly |
| Date Deposited: | 28 Nov 2023 04:36 |
| Last Modified: | 28 Nov 2023 04:36 |
| URI: | http://eprints.um.edu.my/id/eprint/39492 |
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