A novel Ti-eggshell-based composite fabricated by combined additive manufacturing-powder metallurgical routes as bioimplantsShow others and affiliations
2025 (English)In: Ceramics International, ISSN 0272-8842, E-ISSN 1873-3956, Vol. 51, no 5, p. 6281-6291Article in journal (Refereed) Published
Abstract [en]
Eggshells are a biowaste and potential bio-ceramic due to the major calcium carbonate (CaCO3) content, which offers bioactivity, bioresorbability, biocompatibility, and antibacterial properties. To benefit from the properties of the eggshell, this study explores the combined use of ceramic (eggshell) and ductile metal (CP-Ti as a hexagonal prism) as composites. A novel Ti-eggshell composite was fabricated by combining additive manufacturing and powder metallurgical routes. The novel Ti-eggshell composites were characterized for structural and microstructural analysis using X-ray diffraction and scanning electron microscopy. The hexagonal Ti structs deform marginally during composite manufacturing (minor variations in the struct dimensions may be observed) and the composites show the following compressive properties: yield strength of 123 ± 34 MPa and a Young's modulus of 47 ± 2 GPa within the range of natural human cortical bone. In addition, the Ti-eggshell composite offers non-cytotoxic and antibacterial behavior when tested with gram-negative-Pseudomonas. Aeruginosa and gram-positive-Staphylococcus. Aureus bacteria suggesting that such novel Ti-eggshell composites can be suitable members for bioimplant applications. © 2024 Elsevier Ltd and Techna Group S.r.l.
Place, publisher, year, edition, pages
Elsevier Ltd , 2025. Vol. 51, no 5, p. 6281-6291
Keywords [en]
Additive manufacturing, Bioimplants, Circular economy, Composites, Powder metallurgy, Titanium alloys, Antibacterial properties, Bio ceramics, Bio implants, Bioresorbability, Biowastes, Calcium carbonate CaCO, Metallurgical routes, Powder metallurgical, Compressive strength
National Category
Ceramics and Powder Metallurgical Materials
Identifiers
URN: urn:nbn:se:du-49864DOI: 10.1016/j.ceramint.2024.12.073ISI: 001423638400001Scopus ID: 2-s2.0-85211242003OAI: oai:DiVA.org:du-49864DiVA, id: diva2:1922892
2024-12-192024-12-192025-10-09Bibliographically approved