scholarly journals Fabrication of low-density carbon-bonded carbon fiber composites with an Hf-based coating for high temperature applications

RSC Advances ◽  
2018 ◽  
Vol 8 (34) ◽  
pp. 19171-19180 ◽  
Author(s):  
Lin Xu ◽  
Wenbing Yang ◽  
Zhen Fan ◽  
Xingchao Li ◽  
Wei Li ◽  
...  
Keyword(s):  
High Temperature ◽  
Carbon Fiber ◽  
Fiber Composites ◽  
Maximum Temperature ◽  
Carbon Fiber Composites ◽  
Low Density ◽  
Temperature Range ◽  
Ablation Resistance ◽  
Temperature Applications

A novel low-density CBCF composite with an Hf-based coating was designed and prepared, which exhibited a good ablation resistance at the maximum temperature range of 1616–2037 °C for 300 s.

Mechanical Properties of Low-Density SiC-Coated Carbon-Bonded Carbon Fiber Composites

2011 ◽  
Vol 9 (2) ◽  
pp. 401-412 ◽  
Author(s):  
Asher S. Ahmed ◽  
Zdenek Chlup ◽  
Ivo Dlouhy ◽  
Rees D. Rawlings ◽  
Aldo R. Boccaccini
Keyword(s):  
Mechanical Properties ◽  
Carbon Fiber ◽  
Fiber Composites ◽  
Carbon Fiber Composites ◽  
Low Density ◽  
Coated Carbon

Mechanical Behavior of High Temperature Hybrid Carbon Fiber/Titanium Laminates

2009 ◽  
Vol 131 (2) ◽  
Author(s):  
Christos G. Papakonstantinou ◽  
Konstantinos Katakalos
Keyword(s):  
High Temperature ◽  
Carbon Fiber ◽  
Elevated Temperatures ◽  
Pure Titanium ◽  
High Strength ◽  
Fiber Composites ◽  
Carbon Fiber Composites ◽  
High Modulus ◽  
Hybrid Laminates ◽  
The Individual

The aim of this paper was to investigate the tensile and flexural properties of hybrid laminates made with titanium sheets and high modulus carbon fiber composites. Grade II titanium was used, which exhibits great high-temperature performance and creep resistance, low weight, and high strength. An inorganic fireproof matrix, known as geopolymer, was used to fabricate the high modulus carbon fiber composites. Previous studies have shown that these composites are strong, durable, lightweight, and can exhibit excellent performance up to 400°C. In the present study, a number of specimens were tested in uniaxial tension and four-point bending after exposure at elevated temperatures. The results indicate that the addition of carbon fibers can reduce the weight and increase the stiffness of the pure titanium. Moreover, the hybrid laminates are stronger and stiffer than the sum of the individual strengths and stiffnesses of the parent materials. An important finding is that the interlaminar bond is strong, and as a result no delamination failures were observed.

scholarly journals Improved Performances of SiBCN Powders Modified Phenolic Resins-Carbon Fiber Composites

Processes ◽  
2021 ◽  
Vol 9 (6) ◽  
pp. 955
Author(s):  
Wenjie Yuan ◽  
Yang Wang ◽  
Zhenhua Luo ◽  
Fenghua Chen ◽  
Hao Li ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Photoelectron Spectroscopy ◽  
Phenolic Resin ◽  
Pyrolysis Product ◽  
Ablation Rate ◽  
Fiber Composites ◽  
Carbon Fiber Composites ◽  
Phenolic Resins ◽  
X Ray ◽  
Ablation Resistance

The effect of SiBCN powder on properties of phenolic resins and composites was analyzed. Compared with phenolic resins, the thermal stability of SiBCN powder modified phenolic resins (the SiBCN phenolic resins) by characterization of thermogravimetric analysis (TGA) improved clearly. It was found by X-ray photoelectron spectroscopy (XPS) that reactions between SiBCN powder and the pyrolysis product of phenolic resins were the main factor of the increased residual weight. TGA and static ablation of a muffle furnace were used to illustrate the roles of SiBCN powder on increasing oxidation resistance of SiBCN powder-modified phenolic resin–carbon fiber composites (SiBCN–phenolic/C composites), and the oxidative product was analyzed by X-ray diffraction (XRD), scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR). For SiBCN–phenolic/C composites, the occurrence of oxidation reaction and the formation of protective crust contributed to improving oxidative resistance. The result of the oxygen-acetylene test showed that the linear ablation rate (LAR) and mass ablation rate (MAR) of phenolic resin–carbon fiber composites reduced from 0.052 ± 0.005 mm/s to 0.038 ± 0.004 mm/s and from 0.050 ± 0.004 g/s to 0.043 ± 0.001 g/s by introducing SiBCN powder, respectively. The mechanism of ablation resistance after the introduction of SiBCN powder was investigated. The high melt-viscosity of SiBCN powder caused SiBCN powder to remain on the surface of composites and protect the internal resins and carbon fibers. The oxidation of SiBCN powder and volatilization of oxide can consume energy and oxygen, thus the ablation resistance of SiBCN–Ph composite was improved.

Fabrication and ultra-high-temperature properties of lightweight carbon-bonded carbon fiber composites

2019 ◽  
Vol 45 (17) ◽  
pp. 22249-22252
Author(s):  
Yanfei Chen ◽  
Yunong Zhao ◽  
Debao Liu ◽  
Ran Tao ◽  
Tianbao Cheng ◽  
...  
Keyword(s):  
High Temperature ◽  
Carbon Fiber ◽  
Fiber Composites ◽  
Carbon Fiber Composites ◽  
High Temperature Properties ◽  
Ultra High Temperature
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