Title of article :
Mechanical properties of a 3D needled C/SiC composite with graphite filler
Author/Authors :
Cai، نويسنده , , Yanzhi and Fan، نويسنده , , Shangwu and Liu، نويسنده , , Heyi and Zhang، نويسنده , , Litong and Cheng، نويسنده , , Laifei and Jiang، نويسنده , , Juan and Dong، نويسنده , , Benxing، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2010
Pages :
5
From page :
539
To page :
543
Abstract :
A three-dimensional (3D) needled carbon/carbon (C/C) preform was achieved after one cycle of precursor infiltration-pyrolysis. The mixture of phenolic resin and 8 vol% graphite with an average particle size of 2.5 μm was employed as the carbon precursor. The C/SiC composite, made from the as-obtained C/C preform infiltrated with liquid silicon, was mechanically characterized under flexural loading. The results show that the material exhibited pseudo-plastic fracture characteristic and had the average strength of 120 MPa. A major portion of the toughness was attributable to fiber elastic bridging and frictional pullout and the crack deflection and pinning in the matrix. Flake graphite had tailored the carbon-rich interfacial layer and increased the toughness of the brittle matrix.
Keywords :
Graphite , C/SiC composite , needled , mechanical properties
Journal title :
MATERIALS SCIENCE & ENGINEERING: A
Serial Year :
2010
Journal title :
MATERIALS SCIENCE & ENGINEERING: A
Record number :
2165668
Link To Document :
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