Microstructure control of highly oriented short carbon fibres in SiC matrix composites fabricated by direct ink writing

Zhongliang Lu; Yuanlin Xia; Kai Miao; Sai Li; Langping Zhu; Hai Nan; Jiwei Cao; Dichen Li

doi:10.1016/j.ceramint.2019.05.283

Microstructure control of highly oriented short carbon fibres in SiC matrix composites fabricated by direct ink writing

Zhongliang Lu
, Yuanlin Xia
, Kai Miao
, Sai Li
, Langping Zhu
, Hai Nan
, Jiwei Cao
, Dichen Li

School of Mechanical Engineering

Xi'an Jiaotong University
National Innovation Institute of Additive Manufacturing
Beijing Institute of Aeronautical Materials

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

90 Scopus citations

Abstract

A novel method is proposed for fabricating highly oriented carbon fibre reinforced SiC ceramic composites (C_f/SiC) by direct ink writing (DIW). For the first time, the control of carbon fibers’ orientation in DIW was studied by numerical simulation. An interfacial layer was prepared by chemical vapor infiltration (CVI). The microstructure and phase composition of C_f/SiC were studied by scanning electron microscopy and X-ray diffraction, respectively. The results showed that fibers of different interfacial thicknesses could be obtained effectively by varying the CVI time. The breakage of short fibres remarkably improved the fracture toughness of the parts. The specimens showed excellent mechanical properties with bending strength of 274 ± 13 MPa and fracture toughness of 5.82 ± 0.25 MPa m^1/2. This method could be extended to the preparation of other resin and ceramic composites.

Original language	English
Pages (from-to)	17262-17267
Number of pages	6
Journal	Ceramics International
Volume	45
Issue number	14
DOIs	https://doi.org/10.1016/j.ceramint.2019.05.283
State	Published - 1 Oct 2019

Keywords

Direct ink writing
Highly oriented carbon fibres
Interfacial layer
SiC ceramic composites

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10.1016/j.ceramint.2019.05.283

Cite this

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title = "Microstructure control of highly oriented short carbon fibres in SiC matrix composites fabricated by direct ink writing",

abstract = "A novel method is proposed for fabricating highly oriented carbon fibre reinforced SiC ceramic composites (Cf/SiC) by direct ink writing (DIW). For the first time, the control of carbon fibers{\textquoteright} orientation in DIW was studied by numerical simulation. An interfacial layer was prepared by chemical vapor infiltration (CVI). The microstructure and phase composition of Cf/SiC were studied by scanning electron microscopy and X-ray diffraction, respectively. The results showed that fibers of different interfacial thicknesses could be obtained effectively by varying the CVI time. The breakage of short fibres remarkably improved the fracture toughness of the parts. The specimens showed excellent mechanical properties with bending strength of 274 ± 13 MPa and fracture toughness of 5.82 ± 0.25 MPa m1/2. This method could be extended to the preparation of other resin and ceramic composites.",

keywords = "Direct ink writing, Highly oriented carbon fibres, Interfacial layer, SiC ceramic composites",

author = "Zhongliang Lu and Yuanlin Xia and Kai Miao and Sai Li and Langping Zhu and Hai Nan and Jiwei Cao and Dichen Li",

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

year = "2019",

month = oct,

day = "1",

doi = "10.1016/j.ceramint.2019.05.283",

language = "英语",

volume = "45",

pages = "17262--17267",

journal = "Ceramics International",

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}

TY - JOUR

T1 - Microstructure control of highly oriented short carbon fibres in SiC matrix composites fabricated by direct ink writing

AU - Lu, Zhongliang

AU - Xia, Yuanlin

AU - Miao, Kai

AU - Li, Sai

AU - Zhu, Langping

AU - Nan, Hai

AU - Cao, Jiwei

AU - Li, Dichen

PY - 2019/10/1

Y1 - 2019/10/1

N2 - A novel method is proposed for fabricating highly oriented carbon fibre reinforced SiC ceramic composites (Cf/SiC) by direct ink writing (DIW). For the first time, the control of carbon fibers’ orientation in DIW was studied by numerical simulation. An interfacial layer was prepared by chemical vapor infiltration (CVI). The microstructure and phase composition of Cf/SiC were studied by scanning electron microscopy and X-ray diffraction, respectively. The results showed that fibers of different interfacial thicknesses could be obtained effectively by varying the CVI time. The breakage of short fibres remarkably improved the fracture toughness of the parts. The specimens showed excellent mechanical properties with bending strength of 274 ± 13 MPa and fracture toughness of 5.82 ± 0.25 MPa m1/2. This method could be extended to the preparation of other resin and ceramic composites.

AB - A novel method is proposed for fabricating highly oriented carbon fibre reinforced SiC ceramic composites (Cf/SiC) by direct ink writing (DIW). For the first time, the control of carbon fibers’ orientation in DIW was studied by numerical simulation. An interfacial layer was prepared by chemical vapor infiltration (CVI). The microstructure and phase composition of Cf/SiC were studied by scanning electron microscopy and X-ray diffraction, respectively. The results showed that fibers of different interfacial thicknesses could be obtained effectively by varying the CVI time. The breakage of short fibres remarkably improved the fracture toughness of the parts. The specimens showed excellent mechanical properties with bending strength of 274 ± 13 MPa and fracture toughness of 5.82 ± 0.25 MPa m1/2. This method could be extended to the preparation of other resin and ceramic composites.

KW - Direct ink writing

KW - Highly oriented carbon fibres

KW - Interfacial layer

KW - SiC ceramic composites

UR - https://www.scopus.com/pages/publications/85066258127

U2 - 10.1016/j.ceramint.2019.05.283

DO - 10.1016/j.ceramint.2019.05.283

M3 - 文章

AN - SCOPUS:85066258127

SN - 0272-8842

VL - 45

SP - 17262

EP - 17267

JO - Ceramics International

JF - Ceramics International

IS - 14

ER -

Microstructure control of highly oriented short carbon fibres in SiC matrix composites fabricated by direct ink writing

Abstract

Keywords

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