A behavioural study of hydrothermally derived novel alumina/magnesia/hydroxyapatite (Al2O3/MgO/HA) bioceramic nanocomposite. (September 2022)

• Record Type: Journal Article
• Authors: Alinda Shaly, A.; Hannah Priya, G.; Mahendiran, M.; Mary Linet, J.
• Is Part Of: Journal of the mechanical behavior of biomedical materials. Volume 133(2022)
• Publication Date: 2022-09
• Subjects: Al2O3/MgO/HA nanocomposite -- Hydrothermal method -- Mechanical behaviour -- Load curve analysis -- Bioceramic; Biomedical materials -- Periodicals; Biomedical materials -- Mechanical properties -- Periodicals; Biomedical materials; Biomedical materials -- Mechanical properties; Periodicals; Electronic journals; 610.28
• DOI: 10.1016/j.jmbbm.2022.105313
• Languages: English
• ISSNs: 1751-6161

Abstract

Abstract: Regeneration and regrowth of human bones is a gradual and time-consuming process. Therefore scaffolds are required to hold the bones in position and give them time to heal well. Though hydroxyapatite (HA) is a potential candidate, its weak mechanical nature has made it undesirable. To overcome this hurdle, a novel nanocomposite of HA with alumina (Al2 O3 ) and magnesia (MgO) was prepared by hydrothermal method in this study. The constitution, composition and conformation of the Al2 O3 /MgO/HA nanocomposite were affirmed via X-ray Diffraction (XRD), Fourier-Transform Infra-Red (FTIR) and imaging tests. Vicker's hardness test evinces the mechanical calibre of the nanocomposite. A perspective load-displacement analysis was done by means of Onitsch and Kick's power laws. The nanocomposite excelled above par with a hardness of 5.19 GPa and fracture toughness of 1.27 MPam 1/2 . This holistic progress makes this nanocomposite a very desirable bone implant material.