[en] Epoxy composites were prepared using surface silanized chopped carbon fibers (CCFs). Silanized CCFs were synthesized from industrial waste carbon fibers. This work demonstrates the capability of surface silanized chopped carbon fibers to enhance the thermo- mechanical stability of the epoxy composites. The surface silanization of the CCFs to amend the interfacial interaction with epoxy network was done by attaching siloxane functional groups onto CCFs surfaces. Epoxy composites blended with 0.5 and 1 wt % of siloxane decorated CCFs showed a tremendous enhancement in storage modulus in comparison to neat epoxy. This enhancement of composites properties opens up the scope to utilize CCFs for high performance and cost effective epoxy composites. This study opens up the use of juvenile CCFs from waste carbon fibers for their utilization in next generation composites. (paper)

[en] We developed a new method for immobilization of the fix lower extremities by using a thermoplastic mask, a carbon fiber base plate, a customized headrest, and an adjustable angle holder. The lower extremities of 11 patients with lower extremity tumors were immobilized by this method. CT simulation was performed for each patient. For all 11 patients, the device fit was suitable and comfortable and had good reproducibility, which was proven in daily radiotherapy

No abstract available

[en] Published in summary form only

[en] This paper studies size of electromagnetic shielding in plaster composites, using different volume fractions of carbon fibers. Conventional types of plaster, which are normally used in construction (i.e. cement, lime, gypsum and lime cement) were the main parts of the created composites The carbon microfibers with a length of 8 mm were added as reinforcing and simultaneously shielding element into plaster samples. The tested samples were created at three different volume fractions of the fibres and also into the base plaster for possibilities of their comparison. The results of carried measurement show that the electromagnetic shielding in the plaster composite grows with increasing fiber content in the tested ratio almost linearly. (paper)

No abstract available

[en] The optimum ultrasonic test conditions for the thin carbon fiber reinforced plastic (CFRP) sheet were determined for the immersed reflector plate method. The effects of the water distance, the surface conditions of the specimen and transducer characteristics were studied. For a reliable test the water distance between the transducer and the front surface of the specimen should be determined when the beam profile of the transducer appears in the bell-shape. The detectability of the defect was improved as the effective beam width of the ultrasonic transducer became narrow. The transducer should be properly chosen considering to the surface condition of the test material as well as the size and type of the defect to be detected. It was possible to detect the flat bottom hole whose diameter is as small as about 500 micrometer

[en] A preparation technology of ultra-thin Carbon-fiber paper is reported. Carbon fiber distribution homogeneity has a great influence on the properties of ultra-thin Carbon-fiber paper. In this paper, a self-developed homogeneity analysis system is introduced to assist users to evaluate the distribution homogeneity of Carbon fiber among two or more two-value images of carbon-fiber paper. A relative-uniformity factor W/H is introduced. The experimental results show that the smaller the W/H factor, the higher uniformity of the distribution of Carbon fiber is. The new uniformity-evaluation method provides a practical and reliable tool for analyzing homogeneity of materials. (paper)

[en] Properties of carbon fibre of relevance to its use for megavoltage radiotherapy applications have been investigated. Measurements have been made of the percentage transmission and percentage build-up of carbon fibre at energies of 5, 6 and 8 MV. The results are presented in comparison with those obtained for other materials commonly used in radiotherapy: polymethylmethacrylate (PMMA), PETG copolyester and expanded polystyrene foam. It was found that carbon fibre has a higher percentage transmission and a lower percentage build-up than either PMMA or PETG copolyester. It was also found that the build-up due to a combination of carbon fibre and 5 cm of polystyrene foam was less than 65% over the energy range for which measurements were made, and much lower than that due to PETG copolyester. It is thus proposed that carbon fibre is a suitable material from which to make devices for use in megavoltage radiotherapy. (author)

[en] In this paper, a experimental model of morphing swept-wing with carbon fiber is designed and driven by Macro-Fiber Composites (MFC). Dynamic analysis of the wing structure is carried out. The maximum twist angle of the carbon fiber structure driven by the MFC in the experiment is 10.72°. External excitation can be applied to the wing structure for its dynamic analysis and the modal performance of the structure is analyzed. (paper)