Mechanical evaluation of SiC particle reinforced oxynitride glass and glass-ceramic composites

Rouxel, Tanguy; Lavelle, C.; Garnier, Carole; Verdier, P.; Laurent, Y.

doi:10.1016/0956-716x(94)90087-6

Cited by 8 publications

(3 citation statements)

References 9 publications

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“…In addition, the grain‐boundary viscosity values are considerably lower than the viscosity of the intergranular phase in BaO‐doped SiC (10 9 Pa·s at 1100°C) 36 . The calculated values are also low in comparison with the viscosity of YSiAlON glass materials (10 8 Pa·s at 1100°C, 5 × 10 6 Pa·s at 1100°C) 37,38 or SiAlON intergranular glass phases (5 × 10 7 Pa·s at 1100°C) 39 . This is unexpected since a silicon oxycarbide‐based glass is more viscous than the equivalent silicon oxynitride glass 36,40 .…”

Section: Discussionmentioning

confidence: 75%

High‐Temperature Stiffness and Damping Measurements to Monitor the Glassy Intergranular Phase in Liquid‐Phase‐Sintered Silicon Carbides

Roebben

Biest

Sciti

et al. 2005

Journal of the American Ceramic Society

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Detailed stiffness and internal friction (Q−1) versus temperature curves were obtained for liquid‐phase‐sintered silicon carbides using advanced resonant beam analysis up to 1400°C. As‐sintered materials display a stable Q−1‐peak near 1100°C, superimposed on an increasing background. The change of stiffness associated with the damping peak is quantitatively related to the amount of matter in pockets of the amorphous intergranular phase in which the refractory SiC matrix grains are embedded. The successful removal of the amorphous pockets by annealing at 1900°C is deduced from the disappearance of the damping peak and confirmed with transmission electron microscopy.

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Section: Discussionmentioning

confidence: 75%

High‐Temperature Stiffness and Damping Measurements to Monitor the Glassy Intergranular Phase in Liquid‐Phase‐Sintered Silicon Carbides

Roebben

Biest

Sciti

et al. 2005

Journal of the American Ceramic Society

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“…SiC/Y-Mg-Si-Al-O-N composites present increased Young's modulus, fracture toughness, and hardness compared to the SiC-free glassy matrix. 214,215 The higher the volume fraction of the SiC particles and the smaller their size, the stronger the increase. Alternatively, SiC fibers were incorporated in a Y-Si-Al-O-N glass, which was then crystallized.…”

Section: Glass-ceramics and Compositesmentioning

confidence: 99%

“…A few composites based on oxynitride glasses were reported. SiC/Y–Mg–Si–Al–O–N composites present increased Young's modulus, fracture toughness, and hardness compared to the SiC‐free glassy matrix 214,215 . The higher the volume fraction of the SiC particles and the smaller their size, the stronger the increase.…”

Section: Glass‐ceramics and Compositesmentioning

confidence: 99%

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

2022

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Oxynitride glasses are glasses where threefold coordinated nitrogen atoms substitute for twofold oxygen ones, hence resulting in a larger interatomic crosslinking 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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SiC particle reinforced oxynitride glass and glass-ceramic composites: Crystallization and viscoplastic forming ranges

Rouxel

Verdier

1996

Acta Materialia

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Mechanical evaluation of SiC particle reinforced oxynitride glass and glass-ceramic composites

Cited by 8 publications

References 9 publications

High‐Temperature Stiffness and Damping Measurements to Monitor the Glassy Intergranular Phase in Liquid‐Phase‐Sintered Silicon Carbides

High‐Temperature Stiffness and Damping Measurements to Monitor the Glassy Intergranular Phase in Liquid‐Phase‐Sintered Silicon Carbides

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

SiC particle reinforced oxynitride glass and glass-ceramic composites: Crystallization and viscoplastic forming ranges

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