Influence of fiber content on C/C-SiC brake materials fabricated by compression molding and hot sintering

Chen Tang; Alei Dang; Tiehu Li; Tingkai Zhao; Hao Li; Shasha Jiao

doi:10.1016/j.triboint.2019.04.009

Influence of fiber content on C/C-SiC brake materials fabricated by compression molding and hot sintering

Chen Tang, Alei Dang, Tiehu Li, Tingkai Zhao, Hao Li, Shasha Jiao

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

Research output: Contribution to journal › Article › peer-review

29 Scopus citations

Abstract

In this work, short carbon fibers were utilized as reinforcing materials to incorporate with C-SiC ceramics. C_f/C-SiC composites containing diverse fiber contents were fabricated by combining compression molding and hot sintering. Mechanical and tribological properties were carefully investigated. The result indicates that 30 vol% fiber content composite shows the highest flexural strength (201.42 MPa) and shear strength (116.68 MPa). The reinforcing mechanisms are summarized as fiber pulling-out, fiber debonding and fiber bridging, as well as crack deflection. Tribological testing reveals that 30% fiber content composite shows the strongest wear resistance (3.95 × 10⁻⁶ mm³/N⋅m) and cyclic performances (COF of 0.27 after 50 cycles). The friction mechanisms are divided into abrasive wear, adhesion wear and oxidation wear by different wear stages.

Original language	English
Pages (from-to)	404-411
Number of pages	8
Journal	Tribology International
Volume	136
DOIs	https://doi.org/10.1016/j.triboint.2019.04.009
State	Published - Aug 2019

Keywords

C-SiC matrices
Carbon fibers
Mechanical properties
Tribological behaviors

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10.1016/j.triboint.2019.04.009

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title = "Influence of fiber content on C/C-SiC brake materials fabricated by compression molding and hot sintering",

abstract = "In this work, short carbon fibers were utilized as reinforcing materials to incorporate with C-SiC ceramics. Cf/C-SiC composites containing diverse fiber contents were fabricated by combining compression molding and hot sintering. Mechanical and tribological properties were carefully investigated. The result indicates that 30 vol% fiber content composite shows the highest flexural strength (201.42 MPa) and shear strength (116.68 MPa). The reinforcing mechanisms are summarized as fiber pulling-out, fiber debonding and fiber bridging, as well as crack deflection. Tribological testing reveals that 30% fiber content composite shows the strongest wear resistance (3.95 × 10−6 mm3/N⋅m) and cyclic performances (COF of 0.27 after 50 cycles). The friction mechanisms are divided into abrasive wear, adhesion wear and oxidation wear by different wear stages.",

keywords = "C-SiC matrices, Carbon fibers, Mechanical properties, Tribological behaviors",

author = "Chen Tang and Alei Dang and Tiehu Li and Tingkai Zhao and Hao Li and Shasha Jiao",

note = "Publisher Copyright: {\textcopyright} 2019 Elsevier Ltd",

year = "2019",

month = aug,

doi = "10.1016/j.triboint.2019.04.009",

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volume = "136",

pages = "404--411",

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issn = "0301-679X",

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TY - JOUR

T1 - Influence of fiber content on C/C-SiC brake materials fabricated by compression molding and hot sintering

AU - Tang, Chen

AU - Dang, Alei

AU - Li, Tiehu

AU - Zhao, Tingkai

AU - Li, Hao

AU - Jiao, Shasha

PY - 2019/8

Y1 - 2019/8

N2 - In this work, short carbon fibers were utilized as reinforcing materials to incorporate with C-SiC ceramics. Cf/C-SiC composites containing diverse fiber contents were fabricated by combining compression molding and hot sintering. Mechanical and tribological properties were carefully investigated. The result indicates that 30 vol% fiber content composite shows the highest flexural strength (201.42 MPa) and shear strength (116.68 MPa). The reinforcing mechanisms are summarized as fiber pulling-out, fiber debonding and fiber bridging, as well as crack deflection. Tribological testing reveals that 30% fiber content composite shows the strongest wear resistance (3.95 × 10−6 mm3/N⋅m) and cyclic performances (COF of 0.27 after 50 cycles). The friction mechanisms are divided into abrasive wear, adhesion wear and oxidation wear by different wear stages.

AB - In this work, short carbon fibers were utilized as reinforcing materials to incorporate with C-SiC ceramics. Cf/C-SiC composites containing diverse fiber contents were fabricated by combining compression molding and hot sintering. Mechanical and tribological properties were carefully investigated. The result indicates that 30 vol% fiber content composite shows the highest flexural strength (201.42 MPa) and shear strength (116.68 MPa). The reinforcing mechanisms are summarized as fiber pulling-out, fiber debonding and fiber bridging, as well as crack deflection. Tribological testing reveals that 30% fiber content composite shows the strongest wear resistance (3.95 × 10−6 mm3/N⋅m) and cyclic performances (COF of 0.27 after 50 cycles). The friction mechanisms are divided into abrasive wear, adhesion wear and oxidation wear by different wear stages.

KW - C-SiC matrices

KW - Carbon fibers

KW - Mechanical properties

KW - Tribological behaviors

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DO - 10.1016/j.triboint.2019.04.009

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SN - 0301-679X

VL - 136

SP - 404

EP - 411

JO - Tribology International

JF - Tribology International

ER -

Influence of fiber content on C/C-SiC brake materials fabricated by compression molding and hot sintering

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Keywords

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