Thermal properties of CNT-Alumina nanocomposites

Rapid and low temperature spark plasma sintering synthesis of novel carbon nanotube reinforced titanium matrix composites

“…Third, the MWCNT clusters can reduce the cleaning effect involved in SPS by weakening the spark discharge effect[78]. Because the cleaning effect in SPS process can not only reduce the kinks or twists of MWCNTs[79], but also remove contaminations and impurities[80], the weakening of the cleaning effect in SPS may result in a decrease in the thermal diffusivity of the MWCNTs/Ti composites. In summary, with an increase in weight fraction of MWCNTs, the growth rate of the thermal diffusivity of the MWCNTs/Ti composites declines due to the increasing aggregation of MWCNTs.Young and Zhu also reported that the aggregation of CNTs in metal matrix would obviously decrease the heat conduction performance of the CNTs reinforced metal or polymer matrix composites[81,82].Because the heat conduction performance of pure Ti and Ti alloys are relatively poor, adiabatic shear failures always occur in these materials when they are used in engineering, especially in military fields.…”

Field‐Assisted Sintering Technology/Spark Plasma Sintering: Mechanisms, Materials, and Technology Developments

“…[215] Also, the densification (a) (b) (c) of CNT/ceramic composites was investigated intensively showing the possibility of full densification with minimal decomposition of the CNTs and achieving special electrical and wear properties. [216][217][218][219][220][221][222][223] The structure and quality of the interfaces between organic and inorganic constituents plays a decisive role for the final properties of the composites. The formation of diamond from fullerene C60 without any catalysts was also possible in FAST/SPS run under moderate pressure of 50-80 MPa at 1150-1300°C with a heating rate of 100°C min À1 in vacuum, i.e., much "milder" conditions than usually required for diamond production.…”

Reinforced Thermoplastic Natural Rubber (TPNR) Composites with Different Types of Carbon Nanotubes (MWNTS)

“…The thermal diffusivity of MWNTs 1 dropped as did MWNTs 2 by increasing the test temperature. The thermal diffusivity of the TPNR/MWNTs decreases with fiber content due to the density of the nanocomposites, which decrease with the increase in the amount of MWNTs (the density of MWNTs less the TPNR density), hence, the density of the samples affects the thermal diffusivity (Kumari et al, 2008). This means that the TPNR containing MWNTs fiber will require a shorter time to be heated or cooled than the TPNR.…”