Effect of pyrolytic carbon interface thickness on microstructure and mechanical properties of lightweight zirconium boride modified carbon-bonded carbon fiber composites

Xianghong Xu; Baosheng Xu; Changqing Hong; David Hui

doi:10.1016/j.compositesb.2016.03.094

Effect of pyrolytic carbon interface thickness on microstructure and mechanical properties of lightweight zirconium boride modified carbon-bonded carbon fiber composites

Xianghong Xu
, Baosheng Xu
, Changqing Hong^*
, David Hui

^*Corresponding author for this work

CAS - Institute of Mechanics
Tsinghua University
Harbin Institute of Technology
University of New Orleans

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

37 Citations (Scopus)

Abstract

To improve the mechanical properties of carbon-bonded carbon fiber (CBCF) composites, they are firstly fabricated by chemical vapor deposited (CVD) pyrolytic carbon (PyC) coating layer on the carbon fiber surface, and then modified by zirconium boride (ZrB₂) using three cycles of precursor infiltration and pyrolysis (PIP) process. The effects of different PyC interface thickness on the microstructure and mechanical properties of ZrB₂ modified PyC coated CBCF (PyC-CBCF/ZrB₂) composites were studied and characterized. As the PyC thickness increased from 0.5 to 3.6 μm, the flexural properties of PyC-CBCF/ZrB₂ composites are noticeably enhanced in x/y and z direction, respectively. Mechanical enhancements for PyC-CBCF/ZrB₂ composites are mainly attributed to the effective interface bonding between carbon fiber and PyC, crack deflection and branching within the laminar PyC layer and carbon fiber pullout from PyC interface coating.

Original language	English
Pages (from-to)	305-311
Number of pages	7
Journal	Composites Part B: Engineering
Volume	96
DOIs	https://doi.org/10.1016/j.compositesb.2016.03.094
Publication status	Published - 1 Jul 2016
Externally published	Yes

Keywords

A. 3-Dimensional reinforcement;
A. Ceramic-matrix composites (CMCs);
B. Mechanical properties;
C. Micro-mechanics

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10.1016/j.compositesb.2016.03.094

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title = "Effect of pyrolytic carbon interface thickness on microstructure and mechanical properties of lightweight zirconium boride modified carbon-bonded carbon fiber composites",

abstract = "To improve the mechanical properties of carbon-bonded carbon fiber (CBCF) composites, they are firstly fabricated by chemical vapor deposited (CVD) pyrolytic carbon (PyC) coating layer on the carbon fiber surface, and then modified by zirconium boride (ZrB2) using three cycles of precursor infiltration and pyrolysis (PIP) process. The effects of different PyC interface thickness on the microstructure and mechanical properties of ZrB2 modified PyC coated CBCF (PyC-CBCF/ZrB2) composites were studied and characterized. As the PyC thickness increased from 0.5 to 3.6 μm, the flexural properties of PyC-CBCF/ZrB2 composites are noticeably enhanced in x/y and z direction, respectively. Mechanical enhancements for PyC-CBCF/ZrB2 composites are mainly attributed to the effective interface bonding between carbon fiber and PyC, crack deflection and branching within the laminar PyC layer and carbon fiber pullout from PyC interface coating.",

keywords = "A. 3-Dimensional reinforcement;, A. Ceramic-matrix composites (CMCs);, B. Mechanical properties;, C. Micro-mechanics",

author = "Xianghong Xu and Baosheng Xu and Changqing Hong and David Hui",

year = "2016",

month = jul,

day = "1",

doi = "10.1016/j.compositesb.2016.03.094",

language = "English",

volume = "96",

pages = "305--311",

journal = "Composites Part B: Engineering",

issn = "1359-8368",

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TY - JOUR

T1 - Effect of pyrolytic carbon interface thickness on microstructure and mechanical properties of lightweight zirconium boride modified carbon-bonded carbon fiber composites

AU - Xu, Xianghong

AU - Xu, Baosheng

AU - Hong, Changqing

AU - Hui, David

PY - 2016/7/1

Y1 - 2016/7/1

N2 - To improve the mechanical properties of carbon-bonded carbon fiber (CBCF) composites, they are firstly fabricated by chemical vapor deposited (CVD) pyrolytic carbon (PyC) coating layer on the carbon fiber surface, and then modified by zirconium boride (ZrB2) using three cycles of precursor infiltration and pyrolysis (PIP) process. The effects of different PyC interface thickness on the microstructure and mechanical properties of ZrB2 modified PyC coated CBCF (PyC-CBCF/ZrB2) composites were studied and characterized. As the PyC thickness increased from 0.5 to 3.6 μm, the flexural properties of PyC-CBCF/ZrB2 composites are noticeably enhanced in x/y and z direction, respectively. Mechanical enhancements for PyC-CBCF/ZrB2 composites are mainly attributed to the effective interface bonding between carbon fiber and PyC, crack deflection and branching within the laminar PyC layer and carbon fiber pullout from PyC interface coating.

AB - To improve the mechanical properties of carbon-bonded carbon fiber (CBCF) composites, they are firstly fabricated by chemical vapor deposited (CVD) pyrolytic carbon (PyC) coating layer on the carbon fiber surface, and then modified by zirconium boride (ZrB2) using three cycles of precursor infiltration and pyrolysis (PIP) process. The effects of different PyC interface thickness on the microstructure and mechanical properties of ZrB2 modified PyC coated CBCF (PyC-CBCF/ZrB2) composites were studied and characterized. As the PyC thickness increased from 0.5 to 3.6 μm, the flexural properties of PyC-CBCF/ZrB2 composites are noticeably enhanced in x/y and z direction, respectively. Mechanical enhancements for PyC-CBCF/ZrB2 composites are mainly attributed to the effective interface bonding between carbon fiber and PyC, crack deflection and branching within the laminar PyC layer and carbon fiber pullout from PyC interface coating.

KW - A. 3-Dimensional reinforcement;

KW - A. Ceramic-matrix composites (CMCs);

KW - B. Mechanical properties;

KW - C. Micro-mechanics

UR - https://www.scopus.com/pages/publications/84965176089

U2 - 10.1016/j.compositesb.2016.03.094

DO - 10.1016/j.compositesb.2016.03.094

M3 - Article

AN - SCOPUS:84965176089

SN - 1359-8368

VL - 96

SP - 305

EP - 311

JO - Composites Part B: Engineering

JF - Composites Part B: Engineering

ER -

Effect of pyrolytic carbon interface thickness on microstructure and mechanical properties of lightweight zirconium boride modified carbon-bonded carbon fiber composites

Abstract

Keywords

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