Phase transformation and mechanical properties of new bioactive glass-ceramics derived from CaO–P2O5–Na2O–B2O3–SiO2 glass system

Citation

Loh, Zhi Wei and Mohd Zaid, Mohd Hafiz and Matori, Khamirul Amin and Kechik, Mohd Mustafa Awang and Fen, Yap Wing and Mayzan, Mohd Zul Hilmi and Liza, Shahira and Cheong, Wei Mun (2023) Phase transformation and mechanical properties of new bioactive glass-ceramics derived from CaO–P2O5–Na2O–B2O3–SiO2 glass system. Journal of the Mechanical Behavior of Biomedical Materials, 143. art. no. 105889. pp. 1-11. ISSN 1751-6161; eISSN: 1878-0180

Abstract

This work investigates the role of sintering temperature on bioactive glass-ceramics derived from the new composition CaO–P2O5–Na2O–B2O3–SiO2 glass system. The sintering behaviour of the samples’ physical, structural, and mechanical properties is highlighted in this study. The experimental results indicated that the sintering process improved the crystallization and hardness of the final product. Results from XRD and FTIR showed the existence of carbonate apatite, pseudo-wollastonite, and wollastonite phases. From the results, the bioglass-ceramics sintered at 700 °C obtained the highest densification and optimum mechanical results. It had the value of 5.34 ± 0.21 GPa regarding microhardness and 2.99 ± 0.24 MPa m1/2 concerning fracture toughness, which falls in the range of the human enamel. Also, the sintered samples maintained their bioactivity and biodegradability after being tested in the PBS medium. The bioactivity does not affect but slows down the apatite formation rate. Overall results promoted the novel bioglass-ceramics as a candidate material for dental application.

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Additional Metadata

Item Type:	Article
Divisions:	Institut Nanosains dan Nanoteknologi
DOI Number:	https://doi.org/10.1016/j.jmbbm.2023.105889
Publisher:	Elsevier
Keywords:	Bioactive glass; Sintering; Mechanical properties; Fracture toughness; Industry; Innovation and infrastructure; Quality education
Depositing User:	Ms. Nur Aina Ahmad Mustafa
Date Deposited:	09 Jan 2025 01:22
Last Modified:	09 Jan 2025 01:22
Altmetrics:	http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1016/j.jmbbm.2023.105889
URI:	http://psasir.upm.edu.my/id/eprint/109559
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