The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
A large number of carbon nanotube (CNT) applications require that CNTs be assembled into fibers and films at speeds viable for industrial production processes. Most of the state-of-art CNT thread formation techniques of CNT fiber production in meters per second (m/s) are still an order of magnitude lower than typical industrial processes. Here, we report a modified dry spinning process with improved...
We report mechanical, thermal, and electrical properties of novel sheet materials composed of multiwalled carbon nanotubes, drawn from a CNT array. At low loading there is some slippage of CNTs but at higher loading tensile strength σ 0 =7.9MPa and Young’s modulus E=310MPa. The room-temperature thermal conductivity of the CNT sheet was 2.5±0.5Wm −1 K −1 , giving a thermal conductivity...
The electrical resistivity of CNT yarns of diameters 10–34μm, spun from multi-walled carbon nanotube arrays, have been determined from 2 to 300K in magnetic fields up to 9T. The magnetoresistance is large and negative at low temperatures. The thermal conductivity also has been determined, by parallel thermal conductance, from 5 to 300K. The room-temperature thermal conductivity of the 10μm yarn is...
Vertically aligned multi-walled carbon nanotube (MWCNT) arrays up to ∼6mm high with an array density of 0.06gcm −3 have been grown by chemical vapor deposition. Thermal conductivities (κ) and electrical conductivities (σ) were determined from 5K to 390K. The range for κ at 300K is 0.5–1.2Wm −1 K −1 along the tube growth direction, with the shortest array having the highest...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.