| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2011: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2010: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2009: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
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| Research Abstract |
Carbon fibers and liquid crystal polymer fibers have relatively lower compression strength as compared with the tensile strength, and this hinders the most effective utilization of the excellent tensile properties in composites. In the present study, the methods have been established to measure the single-fiber axial compression strength and interfibrillar strength of the fibers. The compression strength measured with this method has been analyzed in relation to the structure feature measured with small-angle X-ray scattering. The compression fracture mechanisms of these fibers and composites have been elucidated and the guidelines have been obtained for increasing the compression strength.
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