Microstructure and properties of α-FeSi2 modified C/C-SiC brake composites

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

doi:10.1016/j.triboint.2016.05.016

Microstructure and properties of α-FeSi₂ modified C/C-SiC brake composites

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

School of Materials Sience and Engineering

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

33 Scopus citations

Abstract

In order to simultaneously reduce the fabrication cost and improve the properties of C/C-SiC brake composites fabricated by chemical vapor infiltration (CVI) combined with liquid silicon infiltration (LSI), α-FeSi₂ modified C/C-SiC brake composites were fabricated by infiltrate cost-saving FeSi75 alloy powders into porous CVI-C/C composites. Microstructure, mechanical properties and tribological behaviors of the modified composites were studied. The results indicated that continuous infiltration was realized. The modified composites achieved higher flexural strength and fracture toughness. Brake temperature was decreased and the wear resistibility was significantly enhanced. It indicates that introducing metallic α-FeSi₂ phase with lower modulus and higher toughness into the matrix can improve the mechanical properties and tribological behaviors of the C/C-SiC brake composites.

Original language	English
Pages (from-to)	10-18
Number of pages	9
Journal	Tribology International
Volume	102
DOIs	https://doi.org/10.1016/j.triboint.2016.05.016
State	Published - 1 Oct 2016

Keywords

Carbon ceramic composite brake
Fe-Si alloy
Tribological behavior

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10.1016/j.triboint.2016.05.016

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title = "Microstructure and properties of α-FeSi2 modified C/C-SiC brake composites",

abstract = "In order to simultaneously reduce the fabrication cost and improve the properties of C/C-SiC brake composites fabricated by chemical vapor infiltration (CVI) combined with liquid silicon infiltration (LSI), α-FeSi2 modified C/C-SiC brake composites were fabricated by infiltrate cost-saving FeSi75 alloy powders into porous CVI-C/C composites. Microstructure, mechanical properties and tribological behaviors of the modified composites were studied. The results indicated that continuous infiltration was realized. The modified composites achieved higher flexural strength and fracture toughness. Brake temperature was decreased and the wear resistibility was significantly enhanced. It indicates that introducing metallic α-FeSi2 phase with lower modulus and higher toughness into the matrix can improve the mechanical properties and tribological behaviors of the C/C-SiC brake composites.",

keywords = "Carbon ceramic composite brake, Fe-Si alloy, Tribological behavior",

author = "Shangwu Fan and Yong Du and Liuyang He and Chuan Yang and Haiping Liu and Laifei Cheng and Litong Zhang and Nahum Travitzky",

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doi = "10.1016/j.triboint.2016.05.016",

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T1 - Microstructure and properties of α-FeSi2 modified C/C-SiC brake composites

AU - Fan, Shangwu

AU - Du, Yong

AU - He, Liuyang

AU - Yang, Chuan

AU - Liu, Haiping

AU - Cheng, Laifei

AU - Zhang, Litong

AU - Travitzky, Nahum

PY - 2016/10/1

Y1 - 2016/10/1

N2 - In order to simultaneously reduce the fabrication cost and improve the properties of C/C-SiC brake composites fabricated by chemical vapor infiltration (CVI) combined with liquid silicon infiltration (LSI), α-FeSi2 modified C/C-SiC brake composites were fabricated by infiltrate cost-saving FeSi75 alloy powders into porous CVI-C/C composites. Microstructure, mechanical properties and tribological behaviors of the modified composites were studied. The results indicated that continuous infiltration was realized. The modified composites achieved higher flexural strength and fracture toughness. Brake temperature was decreased and the wear resistibility was significantly enhanced. It indicates that introducing metallic α-FeSi2 phase with lower modulus and higher toughness into the matrix can improve the mechanical properties and tribological behaviors of the C/C-SiC brake composites.

AB - In order to simultaneously reduce the fabrication cost and improve the properties of C/C-SiC brake composites fabricated by chemical vapor infiltration (CVI) combined with liquid silicon infiltration (LSI), α-FeSi2 modified C/C-SiC brake composites were fabricated by infiltrate cost-saving FeSi75 alloy powders into porous CVI-C/C composites. Microstructure, mechanical properties and tribological behaviors of the modified composites were studied. The results indicated that continuous infiltration was realized. The modified composites achieved higher flexural strength and fracture toughness. Brake temperature was decreased and the wear resistibility was significantly enhanced. It indicates that introducing metallic α-FeSi2 phase with lower modulus and higher toughness into the matrix can improve the mechanical properties and tribological behaviors of the C/C-SiC brake composites.

KW - Carbon ceramic composite brake

KW - Fe-Si alloy

KW - Tribological behavior

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U2 - 10.1016/j.triboint.2016.05.016

DO - 10.1016/j.triboint.2016.05.016

M3 - 文章

AN - SCOPUS:84969579989

SN - 0301-679X

VL - 102

SP - 10

EP - 18

JO - Tribology International

JF - Tribology International

ER -

Microstructure and properties of α-FeSi₂ modified C/C-SiC brake composites

Abstract

Keywords

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