Understanding the crystallization behavior of bioactive glass S53P4 powder compacts under various heating conditions

Stiller, Adrian; Engblom, Markus; Vainio, Emil; Hupa, Leena

doi:10.1016/j.jnoncrysol.2024.123178

Journal of Non-Crystalline Solids

2024

DOI: 10.1016/j.jnoncrysol.2024.123178

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Understanding the crystallization behavior of bioactive glass S53P4 powder compacts under various heating conditions

Adrian Stiller,

Markus Engblom,

Emil Vainio

et al.

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2024

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Cited by 2 publications

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Enrichment of strontium and magnesium improves the physical, mechanical and biological properties of bioactive glasses undergoing thermal treatments: New cues for biomedical applications

Bellucci,

Mazzilli,

Martelli

et al. 2024

Ceramics International

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Enrichment of strontium and magnesium improves the physical, mechanical and biological properties of bioactive glasses undergoing thermal treatments: New cues for biomedical applications

Bellucci,

Mazzilli,

Martelli

et al. 2024

Ceramics International

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An Enhanced Bioactive Glass Composition with Improved Thermal Stability and Sinterability

Martelli,

Bellucci,

Cannillo

2024

Materials

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The development of new bioactive glasses (BGs) with enhanced bioactivity and improved resistance to crystallization is crucial for overcoming the main challenges faced by commercial BGs. Most shaping processes require thermal treatments, which can induce partial crystallization, negatively impacting the biological and mechanical properties of the final product. In this study, we present a novel bioactive glass composition, S53P4_MSK, produced by a melt–quench route. This novel composition includes magnesium and strontium, known for their therapeutic effects, and potassium, recognized for improving the thermal properties of bioactive glasses. The thermal properties were investigated through differential thermal analysis, heating microscopy and sintering tests from 600 °C to 900 °C. These characterizations, combined with X-ray diffraction analysis, demonstrated the high sinterability without crystallization of S53P4_MSK, effectively mitigating related issues. The mechanical properties—elastic modulus, hardness and fracture toughness—were evaluated on the sintered sample by micro-indentation, showing high elastic modulus and hardness. The bioactivity of the novel BG was assessed following Kokubo’s protocol and confirmed by scanning electron microscopy, X-ray energy dispersive spectroscopy, and Raman spectroscopy. The novel bioactive glass composition has shown high sinterability without crystallization at 700 °C, along with good mechanical properties and bioactivity.

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Understanding the crystallization behavior of bioactive glass S53P4 powder compacts under various heating conditions

Cited by 2 publications

References 99 publications

Enrichment of strontium and magnesium improves the physical, mechanical and biological properties of bioactive glasses undergoing thermal treatments: New cues for biomedical applications

Enrichment of strontium and magnesium improves the physical, mechanical and biological properties of bioactive glasses undergoing thermal treatments: New cues for biomedical applications

An Enhanced Bioactive Glass Composition with Improved Thermal Stability and Sinterability

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