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Effects of Fe2O3 addition and annealing on the mechanical and dissolution properties of MgO-and CaO-containing phosphate glass fibres for bio-applications by Chao Tan; Ifty Ahmed; Andrew J. Parsons; Chenkai Zhu; Fernando B. Betanzos; Chris D. Rudd; Xiaoling Liu is a Dentistry article available to read on EtoBox.
What is Effects of Fe2O3 addition and annealing on the mechanical and dissolution properties of MgO-and CaO-containing phosphate glass fibres for bio-applications about?
This paper investigated the preparation of phosphate glass fibres (PGFs) in the following systems: i) Fe 2 O 3 (where x = 5, 8 and 11 mol%) for biomedical applications. Continuous fibres of 23 ± 1 μm diameter were prepared via a meltdraw spinning process. Compositions with higher Fe 2 O 3 content and higher MgO/CaO ratio required higher melting temperature and longer heating time to achieve glass melts for fibre pulling. The effects of Fe 2 O 3 addition and annealing treatment on mechanical properties and degradation behaviours were also investigated. Adding Fe 2 O 3 was found to increase the tensile strength from 523 ± 63 (Ca-Fe5) to 680 ± 75 MPa (Ca-Fe11), improve the tensile modulus from 72 ± 4 (Ca-Fe5) to 78 ± 3 GPa (Ca-Fe11) and decrease the degradation rate from 4.0 (Mg-Fe5) to 1.9 × 10 -6 kg m -2 s -1 (Mg-Fe11). The annealing process reduced the fibre tensile strength by 46% (Ca-Fe5), increased the modulus by 19.6% (Ca-Fe8) and decreased the degradation rate by 89.5% (Mg-Fe11) in comparison to the corresponding asdrawn fibres. Additionally, the annealing process also impeded the formation of precipitate shells and revealed coexistence of the precipitation and the pitting cor
Who reads Effects of Fe2O3 addition and annealing on the mechanical and dissolution properties of MgO-and CaO-containing phosphate glass fibres for bio-applications?
It is typically read by researchers, students, and practitioners in Dentistry.
- Author
- Chao Tan; Ifty Ahmed; Andrew J. Parsons; Chenkai Zhu; Fernando B. Betanzos; Chris D. Rudd; Xiaoling Liu
- Published
- 2018
- Language
- EN
- Field
- Dentistry (Physical Sciences)