Coiled carbon

MODEL STRUCTURE OF PERFECTLY GRAPHITIZABLE COILED CARBON NANOTUBES... 

Graphitizable coiled carbon nanotubes Table 1, Characteristics of some knees with minimal diameter difference... 

Bernaerts, D. and Amelinckx, S., Electron microscopy study of coiled carbon tubules. In Handbook of Microscopy, Vol. 3, ed. S. Amelinckx,... 

Motojima, S., Asakura, S., Kasemura, T., Takeuchi, S. and Iwanaga, H., Catalytic effects of metal carbides oxides and Ni single crystal on the vapor growth of micro-coiled carbon fibers, Carbon, 1996,34, (3), 289 296. 

Motojima S, Kagiya S, Iwanaga H (1996) Preparation of micro-coiled SiC and TiC fibres by vapour phase metallizing of micro-coiled carbon fibres. J Mater Sci 31 4641—4645... 

Motojima S, Kawaguchi M, Nozaki K (1991) Preparation of coiled carbon fibres by catalytic pyrolysis of acetylene, and its morphology and extension characteristics. Carbon 29(3) 379-385... 

Zhong, D.Y., Liu, S., Wang, E.G., 2003. Patterned growth of coiled carbon nanotubes by a template-assisted technique. Appl. Phys. Lett. 83, 4423—4425. 

Figure 13.11 Electrothermal (a) and chemical (b) actuation in coiled carbon nanotube yarns infused with silicone rubber.

A range of studies, in which organometallic complexes have been used to make. SCMs, are listed below. The types of structures produced have been divided up into sections as follows (i) CNTs and CNFs, (ii) aligned and nonaligned carbons, (iii) branched structures, (iv) bamboo carbons, (v) coiled carbons, (vi) amorphous carbons, (vii) spherical carbons, and (viii)... 

A beautiful example of the synthesis of coiled carbons made by using Fe(CO)5 has been reported by Hou et al. [30]. In that study, the authors found that coiling was influenced by the carbon source (toluene, pyridine). Surprisingly no N-doped coils were observed when pyridine was used as reactant. Many types of helical carbons are known and are formed by the floating catalyst route either by the catalytic pyrolysis of polyethylene or through the use of tin and indium catalysts [30]. 

Lu M, Liu W-M, Guo X-Y, Li H-L. Coiled carbon nanotubes growth via reduced-pressure catalytic chemical vapour deposition. Carbon 2004a 42(4) 805-811. 

Popovic ZP, Damnjanovic M, Milosevic I (2013) Anisotropy of thermal expansion of helically coiled carbon nanotubes. Phys Status Solid B 250 2535-2538... 

Dmitrovic S, Popovic ZP, Damnjanovic M et al (2013) Strain engineering of electronic band structure and optical absorption spectra of helically coiled carbon nanotubes. J Nanoelect Optoe-lektr 8 160-164... 

Lau, K.T., Lu, M., Hui, D., 2006. Coiled carbon nanotubes synthesis and their potential application in advanced composite stmctures. Composites Part B Engineering 37 (6), 437-448. 

Kamiya et al. (116) reported on the preparation of TiN fibers (presumably polycrystalline) by nitridation with NH3 of Ti02 fibers prepared by a sol-gel method for a 5-h exposure to NH3, the nitriding reaction started at 900°C and was complete at 1100°C. Microcoiled fibers of TiC were prepared by vapor-phase metallizing of microcoiled fibers with Ml preservation of the coiling morphology of the source coiled carbon fibers (117). TiCi o coils were obtained at 1100-1200°C for 1.5 h. The bulk resistivity of the coiled TiC fibers sharply decreased with the bulk density and was 10 S" cm at 1.4 g cm l... 

Carbon build-up within the torch can be caused by improperly adjusted argon flow rates, improper solution flow rates, and positioning the torch injector tube too close to the load coil. Carbon deposits can invalidate a calibration and extinguish the plasma. 

Xie, J., Mukhopadyay, K., Yadev, J., Varadan, V. K., Catalytic Chemical Vapor Deposition Synthesis and Electron Microscopy Observation of Coiled Carbon Nanotubes, Smart Mater. Struct., 12,744-748 (2003). 

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