The Ni-plated carbon fiber as a tracer for observation of the fiber orientation in the carbon fiber reinforced plastic with X-ray CT期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

The Ni-plated carbon fiber as a tracer for observation of the fiber orientation in the carbon fiber reinforced plastic with X-ray CT

Affiliation:	1. Nagoya Municipal Industrial Research Institute, 3-4-41, Rokuban, Atsuta-ku, Nagoya 456-0058, Japan;2. National Institute of Advanced Industrial Science and Technology (AIST), Advanced Manufacturing Research Institute, 2266-98 Anagahora, Shimoshidami, Moriyama-ku, Nagoya 463-8560, Japan;1. Faculty of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8573, Japan;2. Joining and Welding Research Institute, Osaka University, 11-1 Mihogaoka, Ibaragi, Osaka 567-0047, Japan;1. Carbon Composites Materials Research Center, Institute of Advanced Composite Materials, Korea Institute of Science and Technology, Eunha-ri san 101, Bondong-eup, Wanju-gun, Jeollabuk-do, 565-905, Republic of Korea;2. University of Science and Technology, Gajeong-ro, Yuseong-gu, Daejeon, 305-350, Republic of Korea;3. Hyosung R&DB Labs, 183-2, Hoge-Dong, Dongan-Ku, Anyang-Si, Gyeonggi-do, 431-080, Republic of Korea;4. Department of Mechanical Engineering, University of New Orleans, New Orleans, LA, 70148, USA;5. Advanced Materials Research Institute for BIN Fusion Technology & Dept of BIN Fusion Technology, Chonbuk National University, Duckjin-dong 1Ga 664-14, Jeonju, Jeollabuk-do, 561-756, Republic of Korea

Abstract:	Microfocus X-ray computed tomography (XCT) is effective to evaluate the 3-dimensional (3D) structure (position and orientation) of the fillers in the composites. However, the observation of the carbon fiber (CF) in resin by XCT is not easy due to the small difference between X-ray attenuation coefficient of CF and that of resin. We conducted XCT scanning of carbon fiber reinforced plastics (CFRPs) containing Ni-plated CF. The fiber orientation can be clearly observed in CT images due to a large X-ray attenuation coefficient of Ni-plating. Ni-plated CF essentially showed the same fiber orientation as that of normal CF. We also carried out the 3D characterization of the fiber orientation in an injection-molded dumbbell specimen with weld line. The fibers around the weld line are oriented perpendicular to the longitudinal direction of the specimen.

Keywords:	Micro X-ray computed tomography (XCT) A. Carbon fiber D. Non-destructive testing E. Injection molding
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