Improvement of silicon carbide fibers mechanical properties by Cl2 etching

Mazerat, S.; Delcamp, Adrien; Pailler, R.; Lamon, Jacques; Plaisantin, Hervé

doi:10.1016/j.jeurceramsoc.2018.06.026

Cited by 18 publications

(21 citation statements)

References 21 publications

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“…The formers were heat treated at 650 °C for 10 min in air. The latter were unsized, followed by thin silica film removal in 10 vol.% hydrofluoric acid bath for 4 min, dried and then treated under pure chlorine at 650 °C for 40 min, method described elsewhere [1] , [2] , [3] .…”

Section: Experimental Design Materials and Methodsmentioning

confidence: 99%

“…Lifetime variability can nicely be described using the Weibull statistic ( Eq. (10) ) [ 1 , 4 , 6 , 16 ], where t f.t0 is the characteristic time to failure and m df.t the static fatigue Weibull modulus. These parameters were also assessed by linear least square method applied to Weibull plots.…”

Section: Experimental Design Materials and Methodsmentioning

confidence: 99%

“…This data article presents series of mechanical characterizations for 8 types of SiC-based fiber bundle (Nicalon NL101, Nicalon NL207, Hi-Nicalon, Hi-Nicalon Type S, Tyranno Grade S, Tyranno Lox-M, Tyranno ZMI and Tyranno AM) repeatedly performed for statistical parameters assessment (Weibull distribution law). This number was brought to 11 and 12 respectively at single filament and multifilament tow testing scales, including different batches or surface treatments [ 1 , 2 ]. Fibers chemical composition and microstructure were presented in Ref.…”

Section: Data Descriptionmentioning

confidence: 99%

“…On ZMI fibers the surface transformation by chlorination treatment had a markedly beneficial effect on tensile strength (4000 vs. 3000 MPa) and Weibull modulus (10 vs. 5). This was interpreted by depletion of severest surface located defects [1] .…”

Section: Data Descriptionmentioning

confidence: 99%

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Statistical data for the tensile properties and static fatigue of sic-based bundles

Mazerat¹,

Pailler²

2020

Data in Brief

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Due to their high specific strength at elevated temperatures and resistance to oxidative environments, SiC-based fibers are of great interest for the reinforcement of ceramic matrix composites. They are however subjected to a slow crack growth (SCG) phenomenon causing their delayed failure under subcritical conditions. The testing of filaments, other than comprising handling difficulties, requires large sets of data (broadly dispersed), drawback alleviated by multifilament tow testing. The data available in the present paper correspond to a comprehensive mechanical characterization and static fatigue testing of various types of SiC-based fiber bundles. The initial non-linearity of load displacement curves were analyzed to reveal the tow structure originating from filament misalignment. Static fatigue tests were used to assess the lifetime prediction coefficients and its distribution parameters. These data may found interest for the interpretation of dispersion bundle testing can highlight under different solicitation mode. Such data are also prominent for the wealth of composite design and to guaranty long term performances over the broad application field offered.

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Section: Experimental Design Materials and Methodsmentioning

confidence: 99%

Section: Experimental Design Materials and Methodsmentioning

confidence: 99%

Section: Data Descriptionmentioning

confidence: 99%

Section: Data Descriptionmentioning

confidence: 99%

See 2 more Smart Citations

Statistical data for the tensile properties and static fatigue of sic-based bundles

Mazerat¹,

Pailler²

2020

Data in Brief

View full text Add to dashboard Cite

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“…There is abundant evidence that subcritical crack growth is an important SiC fiber degradation mechanism, 45,[49][50][51] particularly at intermediate temperatures in oxidizing environments. [47][48][49]52,53 However, the nature of strength controlling flaws in SiC fibers, 21,54 and the identity of surface active species that promote growth of these flaws, is not well understood. SiC oxidation in steam can be either passive or active, 29,34,[55][56][57] but if steam is saturated with the Si(OH) 4 (g) oxidation product, only passive oxidation will occur.…”

Section: Introductionmentioning

confidence: 99%

Static fatigue of Hi‐Nicalon™‐S fiber at elevated temperature in air, steam, and silicic acid‐saturated steam

et al. 2019

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A facility for testing SiC fiber tows in static fatigue and creep at elevated temperatures in air and steam was developed. Static fatigue of Hi‐Nicalon™‐S fibers was investigated at 800°C‐1100°C at applied stresses between 115 and 1250 MPa in air, in Si(OH)4(g)‐saturated steam, and in unsaturated steam. Fibers tested in Si(OH)4(g)‐saturated steam and in air had silica scales throughout the test sections, but those tested in unsaturated steam did not develop scales near the steam injection point. Fiber lifetimes in static fatigue were shortest in unsaturated steam, intermediate in Si(OH)4(g)‐saturated steam, and longest in air. Failure strains did not exceed 0.3%. Steady‐state strain rates and static fatigue lifetimes are modelled empirically by the Monkman‐Grant relationship. Failure mechanisms are discussed.

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Silicon carbide fibres – production, structure, and applications

Elango,

2025

Technical Organic and Inorganic Fibres From Natural Resources

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Improvement of silicon carbide fibers mechanical properties by Cl2 etching

Cited by 18 publications

References 21 publications

Statistical data for the tensile properties and static fatigue of sic-based bundles

Statistical data for the tensile properties and static fatigue of sic-based bundles

Static fatigue of Hi‐Nicalon™‐S fiber at elevated temperature in air, steam, and silicic acid‐saturated steam

Silicon carbide fibres – production, structure, and applications

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