Microstructure and properties of α-FeSi 2 modified C/C–SiC brake composites

Fan, Shangwu; Du, Yong; He, Liuyang; Chuan, Yang; Liu, Haiping; Cheng, Laifei; Zhang, Litong; Travitzky, Nahum

doi:10.1016/j.triboint.2016.05.016

Cited by 27 publications

(4 citation statements)

References 21 publications

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“…[16][17][18][19][20] To tailor the frictional characteristics of C f /C-SiC composites, matrix modification is considered as a practical solution. [20][21][22][23][24][25][26][27][28][29][30] The matrix used for modification generally includes alloy and non-metal. As alloys introduced, friction and wear properties of C f /C-SiC, as a consequence, will be changed.…”

Section: Introductionmentioning

confidence: 99%

“…For instance, the wear rate of C f /C-SiC composites was effectively reduced by introducing Fe-Si alloy into the matrix, but low stability of COF under high-speed braking condition remained. 19,[21][22][23][24][25] In addition, copper-alloy as matrix seems to be beneficial to enhance the stability of COF and the wear resistance of C f /C-SiC composites. 20,26,28,29 However, the low COF of the copper-alloy modified composites at high speed braking is still unsolved.…”

Section: Introductionmentioning

confidence: 99%

“…To tailor the frictional characteristics of C f /C‐SiC composites, matrix modification is considered as a practical solution 20‐30 . The matrix used for modification generally includes alloy and non‐metal.…”

Section: Introductionmentioning

confidence: 99%

“…As alloys introduced, friction and wear properties of C f /C‐SiC, as a consequence, will be changed. For instance, the wear rate of C f /C‐SiC composites was effectively reduced by introducing Fe‐Si alloy into the matrix, but low stability of COF under high‐speed braking condition remained 19,21‐25 . In addition, copper‐alloy as matrix seems to be beneficial to enhance the stability of COF and the wear resistance of C f /C‐SiC composites 20,26,28,29 .…”

Section: Introductionmentioning

confidence: 99%

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Microstructures and tribological behaviors of C_f/C‐SiC composites tailored by Cu and Fe‐Si matrices

Zhou

et al. 2021

Int J Applied Ceramic Tech

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Ternary Cu-Fe-Si alloy were applied to modify tribological behavior of carbon fiber/carbon-silicon carbide (C f /C-SiC) composites by reactive melt infiltration.Microstructures, physical properties and tribological properties on a full-scale train brake test rig of the modified composites were studied. Results indicate that both Cu and Fe-Si alloy as matrices lead to significantly enhanced thermal conductivity and compressive strength for C f /C-SiC composites. Moreover, the average friction coefficient of the modified composites is between 0.25 and 0.55, which is higher than that of copper metal matrix composites. In addition, the average volume wear rate of the modified composites is only 0.168 cm 3 /MJ. The C f /C-SiC composites modified by Cu and Fe-Si alloy with improved physical properties and tribological properties meet the technical requirement and show high application potential in express train brake systems.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Microstructures and tribological behaviors of C_f/C‐SiC composites tailored by Cu and Fe‐Si matrices

Zhou

et al. 2021

Int J Applied Ceramic Tech

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Deformation Behavior and Fracture Strength of Single‐Crystal 4H‐SiC Determined by Microcantilever Bending Tests

Yahagi,

Ohji,

Yamaguchi

et al. 2024

Adv Eng Mater

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In this study, the deformation behaviors and mechanical properties of 4H‐SiC single crystals are investigated using microcantilever beam specimens with two different sizes, A and B (A < B). Tensile stress is applied along <20> direction. Plastic deformation, or nonlinearity, is observed in the stress–strain curves, and yield stress, or proportional limit, coincides between the two specimens at ≈25 ± 2 GPa. Scanning transmission electron microscopy and transmission electron microscopy studies show that the plastic deformation is due to dislocation activities; multiple‐dislocation pileup areas are observed in both the specimens. Assuming {100}/<110> prismatic slip which most plausibly occurs in the <20> stress application, the critical resolved shar stress is estimated to be 10.9 GPa, which agrees well with the previous studies. Measured fracture strength is 41.9 ± 2.8 and 33.5 ± 2.4 GPa for the A and B, respectively. Dislocation–fracture relationship is discussed on the basis of dislocation‐based fracture mechanics, etc. It is suggested that cracks form within the multiple‐dislocation pileup area, by interaction with dislocation pileups, and act as fracture origins. A's strength is close to an ideal tensile strength of 4H‐SiC in the <110> direction, 47–55 GPa.

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Tribological Behaviors of 3D Needled C/C–SiC and FeSi75 Modified C/C–SiC Brake Pair

Deng

Zheng

et al. 2017

Tribol Lett

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Microstructure and properties of α-FeSi 2 modified C/C–SiC brake composites

Cited by 27 publications

References 21 publications

Microstructures and tribological behaviors of C_f/C‐SiC composites tailored by Cu and Fe‐Si matrices

Microstructures and tribological behaviors of C_f/C‐SiC composites tailored by Cu and Fe‐Si matrices

Deformation Behavior and Fracture Strength of Single‐Crystal 4H‐SiC Determined by Microcantilever Bending Tests

Tribological Behaviors of 3D Needled C/C–SiC and FeSi75 Modified C/C–SiC Brake Pair

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Microstructure and properties of α-FeSi 2 modified C/C–SiC brake composites

Cited by 27 publications

References 21 publications

Microstructures and tribological behaviors of Cf/C‐SiC composites tailored by Cu and Fe‐Si matrices

Microstructures and tribological behaviors of Cf/C‐SiC composites tailored by Cu and Fe‐Si matrices

Deformation Behavior and Fracture Strength of Single‐Crystal 4H‐SiC Determined by Microcantilever Bending Tests

Tribological Behaviors of 3D Needled C/C–SiC and FeSi75 Modified C/C–SiC Brake Pair

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Microstructures and tribological behaviors of C_f/C‐SiC composites tailored by Cu and Fe‐Si matrices

Microstructures and tribological behaviors of C_f/C‐SiC composites tailored by Cu and Fe‐Si matrices