Carbon Fibers and Their Composites

Park, Soo‐Jin; Kim, Byung-Joo

doi:10.1007/978-94-017-9478-7_8

Cited by 25 publications

(16 citation statements)

References 158 publications

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“…While exhibiting some remarkable mechanical properties, these materials are notoriously difficult and expensive to produce, mostly due to the processing requirements of the long fibres. [1] For this reason other composite systems have been explored, such as short fibres, platelets and particle composites. [2] The introduction of these smaller reinforcing phases within a matrix allows for simpler production processes, however they have some drawbacks, such as inhalation risks or lower reinforcing capacities compared with long fibres.…”

Section: Main Textmentioning

confidence: 99%

Micromechanical strength of individual Al 2 O 3 platelets

Feilden

Giovannini

et al. 2017

Scripta Materialia

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Optimising the properties of platelet reinforced composites requires the strength of the reinforcing phase to be known, however strength measurements at such small scales are difficult and therefore data is sparse. In this work the flexural strength and Weibull modulus of microscopic, alumina platelets has been measured as 5.3±1.3 GPa and 3.7 respectively, using an in-situ micro 3-point bend test. A general approach to correct for the effect of variation in sample size on the Weibull modulus is presented, and the internal structure of the platelets is revealed by TEM.

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Section: Main Textmentioning

confidence: 99%

Micromechanical strength of individual Al 2 O 3 platelets

Feilden

Giovannini

et al. 2017

Scripta Materialia

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“…Carbon fibers (CFs), as one of the new materials of lightweight high-performance fibers for composites, are defined as fibers containing at least 92 wt % carbon [1,2]. Owing to the advantages of excellent tensile properties, low densities, and high thermal and chemical stabilities, CFs are widely used in various fields [3,4,5,6,7].…”

Section: Introductionmentioning

confidence: 99%

Study on the Changes of Structures and Properties of PAN Fibers during the Cyclic Reaction in Supercritical Carbon Dioxide

et al. 2019

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Thermal pre-oxidation of polyacrylonitrile (PAN) fibers is a time-consuming and energy-consuming step in the production of PAN-based carbon fibers. In this paper, the effect of temperature on the structures and properties of PAN fibers cyclized in the supercritical carbon dioxide (Sc-CO2) medium was studied. The thermal behaviors of the PAN fibers were investigated by Fourier transform infrared spectra (FT-IR), X-ray diffraction (XRD), differential scanning calorimeter (DSC) and thermogravimetric analysis (TGA). The cyclization reaction was sensitive to the heating temperature and gas atmosphere. The FT-IR results of the PAN fibers treated in the Sc-CO2 confirmed that the degree of cyclization increased with the increase of the cyclization temperature. Compared with the PAN fibers treated in the air, the PAN fibers treated in the Sc-CO2 showed a higher degree of cyclization even at the same temperature. These findings might be related to the osmotic action of Sc-CO2 causing the fibers to be further arranged in a regular manner, which was favorable for the cyclization reaction. Moreover, as one kind of high diffusion and high heat transfer media, the heat release during the cyclization of PAN fibers could be quickly removed by Sc-CO2, which achieved the progress of the rapid-entry cyclization reaction.

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“…Carbon fibers have been more and more widely used in the fields of aerospace and petrochemical and medical treatment (Sheehan et al, 1994;Park and Kim, 2010), owing to their unique stabilities, elastic moduli, strengths, stiffness, thermal conductivities, and lightweightness (Ruland, 1990;Keiji et al, 2004;Wu et al, 2010). Nevertheless, the high stiffness of carbonfiber composite materials could lead to relatively low damping performance, in which case original cracks will be quickly propagated under the actions of periodic loads and external shocks, eventually resulting in vibration, fatigue, and failure (Khan et al, 2011;Fan et al, 2016).…”

Section: Vibration and Noise Reduction Based On The Damping Propertymentioning

confidence: 99%

Carbon Nanomaterials: A New Sustainable Solution to Reduce the Emerging Environmental Pollution of Turbomachinery Noise and Vibration

Jia

Miu

et al. 2020

Front. Chem.

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The vibration and noise that resulted from turbomachinery, such as fans, compressors, and centrifugal pumps, are known to bring considerable disturbance and pollution to the machine itself, the environment, and the operators. Hence, how to cope with the vibration and noise has become a recent research focus. With the advancement of materials science, more and more new nanomaterials have been applied in the field of noise and vibration reduction. To be specific, carbon-based nanomaterials, such as carbon fibers, carbon nanotubes, and graphenes, have achieved outstanding results. Carbon nanocomposites, such as carbon nanofibers, carbon nanotubes, and graphenes, are characterized by their low densities, high strengths, and high elastic moduli, all of which made carbon nanocomposites the most promising vibration and noise-reduction composites, thanks to their damping properties, compatibilities, noise and vibration absorption qualities, and wide wave-absorbing frequency bands. In light of this, this paper summarizes the progresses and application prospects of such carbon nanocomposites as carbon nanofibers, carbon nanotubes, and graphenes in the field of turbomachinery vibration and noise reduction.

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Carbon Fibers and Their Composites

Cited by 25 publications

References 158 publications

Micromechanical strength of individual Al 2 O 3 platelets

Micromechanical strength of individual Al 2 O 3 platelets

Study on the Changes of Structures and Properties of PAN Fibers during the Cyclic Reaction in Supercritical Carbon Dioxide

Carbon Nanomaterials: A New Sustainable Solution to Reduce the Emerging Environmental Pollution of Turbomachinery Noise and Vibration

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