Download PDF by Sie Chin Tjong: Carbon Nanotube Reinforced Composites Metal and Ceramic

By Sie Chin Tjong

Offering a wide perception into the aptitude purposes of carbon nanotubes with metals and ceramic fabrics as a matrix, this booklet specializes in the education and the microstructural, actual, and mechanical characterizations of such novel nanocomposites. It positive aspects info on present synthesis and structure-property-relationships of metals and ceramics strengthened with CNT, organizing the giant array of surveys scattered during the literature in one monograph. With its laboratory protocols and knowledge tables this is often beneficial examining for study employees and teachers, in addition to for utilized scientists and group of workers.

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A. E. (1999) Gas-phase catalytic growth of single-walled nanotubes from carbon monoxide. Chemical Physics Letters, 313, 91–97. T. E. (1996) Single-walled nanotubes produced by metal-catalyzed disproportionation of carbon dioxide. Chemical Physics Letters, 260, 471–475. H. E. (2000) Controlled production of single-wall carbon nanotubes by catalytic decomposition of CO on bimetallic Co-Mo catalysts. Chemical Physics Letters, 317, 497–503. E. E. (2001) Relationship between the structure/ composition of Co-Mo catalysts and their ability to produce single-walled carbon nanotubes by CO disproportionation.

The electrons in one-dimensional CNTs are considered to be ballistically conducted. This implies that the electrons with a large phase coherence length experience no scattering from phonons during ballistic transport in CNTs. Therefore, electrons encounter no resistance and dissipate no heat in CNTs. In this respect, the conductance (the inverse of resistance) of individual SWNTs is predicted to be quantized with a value of 2Go, independent of the diameter and the length [171]. The conductance quantum (Go) can be expressed by the following equation: Go ¼ 2e2 =h ¼ ð12:9 kWÞÀ1 ð1:7Þ where e is the electronic charge and h is Planck’s constant.

Raman spectroscopy is a qualitative tool for determining vibrational frequency of molecular allotropes of carbon. All carbonaceous moieties such as fullerenes, CNTs, diamond, and amorphous carbon are Raman active. The position, width and relative intensity of Raman peaks are modified according to the sp3 and sp2 configurations of carbon [122–124]. Raman spectra of the SWNTs are well characterized by the low frequency radial breathing mode (RBM) at 150–200 cmÀ1, with frequency depending on the tube diameter and the tangential mode at 1400–1700 cmÀ1.

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