Journal ArticleDOI
Effects of matrix structure on mechanical properties of carbon/carbon composites
Seh-Min Oh,Jai-Young Lee +1 more
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TLDR
In this paper, the mechanical properties of carbon/carbon composites prepared by thermal-gradient CVD technique were investigated by three-point flexural tests and the role of the matrix crack during the fracture was discussed.About:
This article is published in Carbon.The article was published on 1988-01-01. It has received 48 citations till now. The article focuses on the topics: Elastic modulus & Flexural strength.read more
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Thermophysical properties of carbon/carbon composites and physical mechanism of thermal expansion and thermal conductivity
TL;DR: In this article, five different carbon/carbon composites (C/C) have been prepared and their thermophysical properties studied and the results show that the X -Y direction thermal expansion coefficient (CTE) is negative in the range 0 -100 °C with values ranging from −0.29 to −0.85 −10 −6 /K. The microstructure of the PyC has no obvious effect on the CTE for composites with the same preform architecture.
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Micro- and nanostructure of the carbon matrix of infiltrated carbon fiber felts
TL;DR: In this article, the structural properties of carbon/carbon composites fabricated by chemical vapor infiltration (CVI) were studied by polarized light microscopy (PLM), scanning electron microscopy, and transmission electron microscope (TEM) on a micrometer and nanometer scale.
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Microstructure and mechanical properties of carbon–carbon composites with multilayered pyrocarbon matrix
TL;DR: In this article, the effect of matrix microstructure on the mechanical properties of carbon fiber felts infiltrated by isothermal chemical vapor infiltration (CVI) has been studied by optical microscopy, scanning electron microscopy and three-point bending tests.
Journal ArticleDOI
Influence of the matrix microstructure on the mechanical properties of CVI-infiltrated carbon fiber felts
TL;DR: In this paper, a correlation between the matrix microstructure and the mechanical properties of CVI-infiltrated carbon fiber felts was studied by optical microscopy, scanning electron microscopy and three-point bending tests.
Journal ArticleDOI
Microstructural investigation of low-density carbon-carbon composites
Ian Davies,Rees D. Rawlings +1 more
TL;DR: In this paper, the microstructure of low-density carbon-carbon composites was investigated using optical microscopy, scanning electron microscopy and image analysis, with a distinct layering effect being seen on the microscopic (and sometimes macroscopic) level.
References
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Journal ArticleDOI
Deformation and fracture of pyrolytic carbons deposited in a fluidized bed
J.C. Bokros,R.J. Price +1 more
TL;DR: In this paper, the authors compared the mechanical properties of pyrolytic carbon deposits to their structure, which in turn depends on the deposition conditions and subsequent heat treatment, and found that the fracture strain was highest in the isotropic and laminar structures.
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The effect of chemical-vapor-deposition conditions on the properties of carbon-carbon composites
TL;DR: In this paper, as-deposited and heat-treated carbon-felt, carbon-matrix composites infiltrated at deposition temperatures of 1100 and 1400°C, and pressures of 20 and 630 Torr.
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Structure and mechanical properties of isotropic pyrolytic carbons deposited below 1600 °C
TL;DR: In this paper, the fracture stress, elastic modulus, and strain energy to fracture also increase with decreasing crystallite size at constant density, and fracture stress and Young's modulus were measured in three-point bending.
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Relations between the structure and the mechanical properties of fluidized-bed pyrolytic carbons
TL;DR: For isotropic carbons with constant density, the Young's modulus and fracture stress increase with decreasing crystallite size possibly due to cross-linking either between crystallites or between layer planes as discussed by the authors.
Journal ArticleDOI
Carbon-Felt, Carbon-Matrix Composites: Dependence of Thermal and Mechanical Properties on Fiber Precursor and Matrix Structure
TL;DR: In this article, a heat-treated, polyacrylonitrile (PAN)-based carbon felt, rough laminar carbon matrix composite has a superior thermal shock figure-of-merit based on these results.