Stress-induced microstructural changes and crystallite modulus of carbon fiber as measured by X-ray scattering

被引：34

作者：

Kobayashi, Takayuki ^{[2
]}

Sumiya, Kazunori ^{[2
]}

Fujii, Yasuyuki ^{[2
]}

Fujie, Masaki ^{[2
]}

Takahagi, Takayuki ^{[3
]}

Tashiro, Kohji ^{[1
]}

机构：

[1] Toyota Technol Inst, Grad Sch Engn, Nagoya, Aichi 4688511, Japan

[2] Mitsubishi Rayon Co Ltd, Corp Res Labs, Hiroshima 7390693, Japan

[3] Hiroshima Univ, Grad Sch Adv Sci Matter, Higashihiroshima 7390046, Japan

来源：

CARBON | 2012年 / 50卷 / 03期

关键词：

VIBRATIONAL SPECTROSCOPIC MEASUREMENT; PHENYLENEBENZOBISOXAZOLE PBO FIBER; TENSILE-STRESS; RAMAN-SPECTRA; POLYOXYMETHYLENE; DEFORMATION; GRAPHITE;

D O I：

10.1016/j.carbon.2011.10.029

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Apparent crystallite modulus (E-c(aPP)) has been evaluated under the assumption of homogeneous stress distribution for carbon fiber (CF) bundles of different bulk moduli by measuring the X-ray 100/101 reflections under tensile stress using a synchrotron X-ray beam. The E-c(app) was found to be different among the CF fibers with different mechanical properties: 732 GPa for the sample with bulk Young's modulus 445 GPa and 359 GPa for the sample of 252 GPa, indicating that the assumption of homogenous stress distribution cannot be applied. The heterogeneous stress distribution in the CF has been evaluated quantitatively on the basis of the complex mechanical model consisting of crystalline and amorphous phases. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：1163 / 1169

页数：7

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