Publication
Reaction path in the mechanosynthesis of calcium phosphates using a biogenic calcium source
| authorProfile.email | biblioteca@isel.pt | |
| datacite.subject.fos | Engenharia e Tecnologia::Engenharia Mecânica | |
| dc.contributor.author | Ferro, Alberto C. | |
| dc.contributor.author | Seixas, Tomás | |
| dc.contributor.author | Guedes, Mafalda | |
| dc.date.accessioned | 2025-08-18T10:36:52Z | |
| dc.date.available | 2025-08-18T10:36:52Z | |
| dc.date.issued | 2024-01-01 | |
| dc.description.abstract | Calcium phosphates were produced by mechanosynthesis, using eggshell, H3PO4 and 6-83 wt%-H2O. Mixtures were milled at 600 rpm during 0.5-12 h. Resulting calcium phosphates occur within specific milling domains; H2O concentration determines onset and stability of monophasic hydroxyapatite. Within the tested conditions, brushite is the first detected calcium phosphate precipitated from solution. In 6, 40 and 56 wt%-H2O, monetite intermediates brushite's transformation to hydroxyapatite; in 71 and 83 wt%-H2O transformation is direct. Hydroxyapatite formation is favoured at the H2O extremes tested, 6 and 83 wt%. CO2 build-up in the confined jar and nucleation-and-growth events during drying are possible obstacles upon control of morphology and composition of synthesised particles. The potential of chicken eggshell as direct biogenic source and the ability of high-energy milling as corresponding processing route to produce calcium phosphates was demonstrated. This signals a route for reliable production of brushite, monetite and hydroxyapatite. A preliminary milling map was built, allowing to obtain desired final product under specific milling conditions. | eng |
| dc.identifier.citation | Ferro, A. C., Seixas, T., & Guedes, M. (2024). Reaction path in the mechanosynthesis of calcium phosphates using a biogenic calcium source. Ceramics International, 50(1), Part: A, 282-292. https://doi.org/10.1016/j.ceramint.2023.10.102 | |
| dc.identifier.doi | https://doi.org/10.1016/j.ceramint.2023.10.102 | |
| dc.identifier.eissn | 1873-3956 | |
| dc.identifier.issn | 0272-8842 | |
| dc.identifier.uri | http://hdl.handle.net/10400.21/22014 | |
| dc.language.iso | eng | |
| dc.peerreviewed | yes | |
| dc.publisher | Elsevier | |
| dc.relation | UIDB/04540/2020 - FCT | |
| dc.relation | PTDC/ECI-COM-28308/2017 - FCT | |
| dc.relation.hasversion | https://www.sciencedirect.com/science/article/pii/S0272884223031450?via%3Dihub | |
| dc.relation.ispartofseries | Part: A | |
| dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | |
| dc.subject | High energy milling | |
| dc.subject | Biogenic raw-materials | |
| dc.subject | Calcium phosphates mechanosynthesis | |
| dc.subject | Powder characterization | |
| dc.subject | Biomedical applications | |
| dc.title | Reaction path in the mechanosynthesis of calcium phosphates using a biogenic calcium source | eng |
| dc.type | research article | |
| dspace.entity.type | Publication | |
| oaire.citation.endPage | 292 | |
| oaire.citation.issue | 1 | |
| oaire.citation.startPage | 282 | |
| oaire.citation.title | Ceramics International | |
| oaire.citation.volume | 50 | |
| oaire.version | http://purl.org/coar/version/c_be7fb7dd8ff6fe43 |