Citation

Gangadharan, Tharumar and Palanisamy, Chockalingam and Sivakumar, Gurusamy Duraipandian and Ramachandran, Veillan and Selvakumar, Devanand and Mhd Noor, Ervina Efzan (2025) Synthesis and Mechanical Properties of HAp/SiO₂/PLA Composite Derived from Goat Jawbone. Engineering, Technology & Applied Science Research, 15 (4). pp. 24159-24167. ISSN 2241-4487

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Abstract

Biomaterials like nano-hydroxyapatite (nHAp) closely mimic the mineral makeup of real bones. This research is centered around the synthesis of nHAp (Ca10(PO4)6(OH)2) using goat jawbone. After being ball-milled for 4 hr at 150 rpm, the bone underwent a 10 °C/min controlled rate heat treatment to 300 °C, 600 °C, 900 °C, 1000 °C, and 1200 °C. With a lattice strain ranging from ε = 91.49 to 12.16, the nHAp crystallite size varied between 3.61 nm and 21.87 nm when measured using the Scherrer method and 1.41 nm and 14.16 nm when measured using the Williamson-Hall method while a porosity range of 81.5% to 84.5% of the nHAp derived from goat jawbone was observed. The composite's mechanical properties were enhanced by adding bio-inert ceramics SiO2, which helped overcome the nHAp's poor fracture toughness and lack of flexibility. Composites of HAp, SiO2, and PLA with different weight percentages were created using the co-precipitation technique. In order to characterize the material, X-Ray Diffraction (XRD) and Scanning Electron Microscopy (SEM) were used to analyze its structure and morphology. The made composites had a compressive strength of 43.26 MPa and porosity ranging from 78.65% to 85.25%.

Item Type:	Article
Uncontrolled Keywords:	Hydroxyapatite
Subjects:	R Medicine > RA Public aspects of medicine > RA421-790.95 Public health. Hygiene. Preventive medicine
Divisions:	Faculty of Engineering and Technology (FET)
Depositing User:	Ms Rosnani Abd Wahab
Date Deposited:	27 Aug 2025 06:43
Last Modified:	27 Aug 2025 06:43
URII:	http://shdl.mmu.edu.my/id/eprint/14486

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