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Article Dans Une Revue Journal of the American Ceramic Society Année : 2023

Review: Elaboration, structure, and mechanical properties of oxynitride glasses

Résumé

Oxynitride glasses are glasses where threefold coordinated nitrogen atoms substitute for twofold oxygen ones, hence resulting in a larger interatomic cross-linking degree. Such glasses were first observed at the grain boundary in silicon nitride ceramics, where they govern the high-temperature behavior. Later, they were prepared as bulk materials and motivated numerous researches, thanks to their large viscosity, glass transition range, elastic moduli, hardness, and fracture toughness among inorganic and non-metallic glasses. In different chemical systems that were investigated, the synthesis routes and the sources for these exceptional mechanical properties are reviewed. Oxynitride glasses are not easy to process and suffer from the loss of transparency as nitrogen is incorporated over some critical content. Nevertheless, they are attractive “specialty” glasses in various niche areas, thanks to their large refractive index and dielectric constant, improved chemical durability, high softening point, etc., and majorly to their exceptional mechanical properties.
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Dates et versions

hal-03852246 , version 1 (14-12-2022)

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Alexis Duval, Patrick Houizot, Tanguy Rouxel. Review: Elaboration, structure, and mechanical properties of oxynitride glasses. Journal of the American Ceramic Society, 2023, 106 (3), pp.1611-1637. ⟨10.1111/jace.18824⟩. ⟨hal-03852246⟩
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