The relationship between the mechanical properties and microstructures of carbon fibers

WANG Mei-ling; BIAN Wen-feng

doi:10.1016/S1872-5805(20)60474-7

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WANG Mei-ling, BIAN Wen-feng. The relationship between the mechanical properties and microstructures of carbon fibers. New Carbon Mater., 2020, 35(1): 42-49. doi: 10.1016/S1872-5805(20)60474-7

Citation:

WANG Mei-ling, BIAN Wen-feng. The relationship between the mechanical properties and microstructures of carbon fibers. New Carbon Mater., 2020, 35(1): 42-49. doi: 10.1016/S1872-5805(20)60474-7

WANG Mei-ling, BIAN Wen-feng. The relationship between the mechanical properties and microstructures of carbon fibers. New Carbon Mater., 2020, 35(1): 42-49. doi: 10.1016/S1872-5805(20)60474-7

Citation:

WANG Mei-ling, BIAN Wen-feng. The relationship between the mechanical properties and microstructures of carbon fibers. New Carbon Mater., 2020, 35(1): 42-49. doi: 10.1016/S1872-5805(20)60474-7

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The relationship between the mechanical properties and microstructures of carbon fibers

doi: 10.1016/S1872-5805(20)60474-7

WANG Mei-ling¹,
BIAN Wen-feng^{1,2
,}

1.
Harbin Institute of Technology, Harbin 150001, China;
2.
National Engineering Laboratory for Carbon Fiber Preparation and Engineering, Weihai 264200, China

Funds: Natural Science Foundation of Shandong Province(ZR2018MA029).

Received Date: 2019-12-31
Accepted Date: 2020-04-02
Rev Recd Date: 2020-01-23
Publish Date: 2020-02-29

Abstract

Abstract

Differences in the microstructure of carbon fibers are subtle for carbon fibers with similar mechanical properties. The mechanical properties and microstructures of six carbon fibers were investigated by a universal material testing machine, X-ray diffraction, small angle X-ray scattering and Raman spectroscopy to reveal the relationship between the tensile strengths of carbon fibers and their microstructures. Results indicate that the tensile strength increases with decreasing d₀₀₂ or I_D/I_G values, and increases with increasing L_c for five of the six carbon fibers examined. Differences in the tensile strength were characterized by a Weibull modulus increase with increasing micropore radius. The Griffith theory over-estimates the tensile strength of the six carbon fibers. A more accurate formula is proposed to correlate the tensile strength with the microstructures of carbon fibers based on both the Griffith and Weibull theories, which takes into account the tensile strength loss due to the three-layer structure of carbon fibers (an inner-surface layer, an outer-surface layer and a core), defects and the tensile strength of carbon fibers, and is validated by the experimental data on T300 carbon fibers from other researchers.
- Carbon fiber,
- XRD,
- Weibull,
- Element,
- Microstructure

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References(29)

References

Tsai S W, Wu E W. A general theory of strength for anisotropic materials[J]. Journal of Composite Materials, 1971, 5:58-80.

Harlow D G, Phoenix S L. Bounds on the probability of failure of composites[J]. International Journal of Fracture, 1979, 15(4):321-336.

Jamal E, Franclois T, Raymond G. Review of failure criteria of fibrous composite materials[J]. Polymer Composites, 1996, 56(6):183-196.

Griffith A A. The phenomena of rupture and flow in solids[J]. Philosophical Transactions of the Royal Society of London, 1920, 211:163-198.

Peirce F T. Tensile tests for cotton yarns, "The weakest link" Theorems on the strength of long and of composite specimens[J]. Journal of the Textile Institute, 1926, 17(7):355-368.

Weibull W. A statistical theory of the strength of materials[J]. The Royal Swedish Institute for Engineering Research Preceeding, 1939, 151:1-45.

Fu H. Carbon Fiber and Graphite Fiber[M]. Chemical Industry Press, 2010:369.

Fujie L, Haojing W, Linbing X, et al. Effect of microstructure on the mechanical properties of PAN-based carbon fihers during high-temperature graphitization[J]. Journal of Materials Science, 2008, (43):4316-4322.

Cédric S, Jacques L, René P. The tensile behavior of carbon fibers at high temperatures up to 2400℃[J]. Carbon, 2004, 42(4):715-725.

Ogalev A A, Lin C, Anderson D P, et al. Orientation and dimensional changes in mesophase pitch-based carbon fibers[J]. Carbon, 2002, 40(8):1309-1319.

Guinier A, Foumet G. Small-angle scattering of X-rays[C]. New York:Wiely, 1955:17-65.

Bale H D, Schmidt P W. Small-angle X-ray-scattering investigation of submicroscopic porosity with fractal properties[J]. Physical Review letters, 1984, 53(53):596-599.

Tuinstra F, Koening J L. Raman spectrum of graphite[J]. Journal of Chemical Physics, 1970, 53(3):1126-1130.

Weidong Y. Jiangwei Y. Tensile strength and its variation of PAN-based carbon fibers. I. Statistical distribution and volume dependence[J]. Journal of Applied Polymer Science, 2007, 101(5):3175-3182.

Natio K. Tensile properties and Weibull modulus of some high-performance polymeric fibers[J]. Journal of Applied Polymer Science, 2013, 128(2):1185-1192.

Natio K, Yang J, Tanaka Y, et al. The effect of gauge length on tensile strength and weibull modulus of polyacrylonitrile (PAN)-and pitch-based carbon fibers[J]. Journal of Material Science, 2012, 47:632-642.

Johnson D J, Tyson C N. Low-angle X-ray diffraction and physical properties of carbon fibres[J]. Journal of Physics d-applied Physics, 1970, 3:526.

Kobayashi T, Sumiya K, Fukuba Y, et al. Structure heterogeneity and stress distribution in carbon fiber monifilament as revealed by synchrotron microbeam X-ray scattering and micro-Raman spectral measurements[J]. Carbon, 2011, 49:1646-1652.

Johnson D J. Structure-property relationships in carbon fibers[J]. Journal of Physics applied Physics, 1987, 20:287.

Moreton R, Watt W, Johnson W. Carbon fibres of high strength and high breaking strain[J]. Nature, 1967, 213:690-691.

Cooper G A, Mayer R M. The strength of carbon fibres[J]. Journal of Material Science, 1971, 6:60-67.

Honjo K. Fracture toughness of PAN-based carbon fibers estimates from strength-mirror size relation[J]. Carbon, 41(5):979-984.

Bansal G K. Effect of flaw shape on strength of ceramics[J]. Journal of the American Ceramic Society,1976,59(1/2):87-88.

Wenfeng B, Shuxiang L, Qingtian L. Micro compound method of elasticity coefficient of carbon fiber[J]. Acta Material Composite Sinica, 2012, 29(1):212-215.

Chen W, Mengfan W, Daxin L, et al. Relationship between the density and graphite structure of carbon fiber during high temperature treatment process[J]. Journal of Materials Science and Engineering, 2013, 31(6):803-806.

Kuniaki H. Fracture toughness of PAN-based carbon fibers estimated from strength-mirror size relation[J]. Carbon, 2003, 41(5):979-984.

Zetian C. Studies on the structure and micro-mechnical properties of carbon fiber by Raman spectrum[D]. Shanghai:Dong Hua University, 2011.

Dongfeng L, Haojing W, Fu H. Structure and properties of T300 and T700 carbon fibers[J]. New Carbon Matericals, 2007, 22(1):59-64.

Yi S, Caihong Z, Yao X, et al. Investigation of PAN-based carbon fiber microstructure by 2D-SAXS[J]. New Carbon Matericals, 2009, 24(3):270-276.

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