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Full-Text Articles in Engineering
Polymethylmethacrylate Augmented With Carbon Nanotubes, David A. Pienkowski, Rodney J. Andrews
Polymethylmethacrylate Augmented With Carbon Nanotubes, David A. Pienkowski, Rodney J. Andrews
Center for Applied Energy Research Faculty Patents
An augmented synthetic resin is provided. That resin includes carbon nanotubes dispersed in a polymethylmethacrylate matrix. The method of preparing this synthetic resin includes the mixing and disaggregating of the carbon nanotubes.
Delta-Ferrite Recovery Structures In Low-Carbon Steels, Rian Dippenaar, Dominic Phelan
Delta-Ferrite Recovery Structures In Low-Carbon Steels, Rian Dippenaar, Dominic Phelan
Faculty of Engineering and Information Sciences - Papers: Part A
The development of delta-ferrite recovery substructures in low-carbon steels has been observed in-situ utilizing laser scanning confocal microscopy (LSCM). Well-developed sub-boundaries with interfacial energies much smaller than that of delta-ferrite grain boundaries formed following transformation from austenite to delta-ferrite on heating. It is proposed that transformation stresses associated with the austenite to delta-ferrite phase transformation generate dislocations that subsequently recover into sub-boundaries by a process of polygonization. Experimental evidence in support of this proposal was found in a ferritic stainless steel. Thermal cycling through the high-temperature delta-ferrite/austenite/delta-ferrite phase transformation leads to the development of a well-defined recovery substructure, which, in …
Detection Of Carbon Monoxide Within The Magellanic Bridge, E Muller, L Staveley-Smith, William Zealey
Detection Of Carbon Monoxide Within The Magellanic Bridge, E Muller, L Staveley-Smith, William Zealey
Faculty of Engineering and Information Sciences - Papers: Part A
The Mopra 22-m and SEST 15-m telescopes have been used to detect and partially map a region of 12CO(1-0) line emission within the Magellanic Bridge, a region lying between the Large and Small Magellanic Clouds (LMC and SMC, respectively). The emission appears to be embedded in a cloud of neutral hydrogen, and is in the vicinity of an IRAS source. The CO emission region is found to have a 60 μm/100 μm flux density ratio typical for 12CO(1-0) detections within the SMC, although it has a significantly lower 12CO brightness and velocity width. These suggest that the …
Improving The Mechanical Properties Of Single-Walled Carbon Nanotube Sheets By Intercalation Of Polymeric Adhesives, Jonathan N. Coleman, Werner J. Blau, Alan B. Dalton, Edgar Munoz, Steve Collins, Bog G. Kim, Joselito M. Razal, Miles Selvidge, Guillermo Vieiro, Ray Baughman
Improving The Mechanical Properties Of Single-Walled Carbon Nanotube Sheets By Intercalation Of Polymeric Adhesives, Jonathan N. Coleman, Werner J. Blau, Alan B. Dalton, Edgar Munoz, Steve Collins, Bog G. Kim, Joselito M. Razal, Miles Selvidge, Guillermo Vieiro, Ray Baughman
Australian Institute for Innovative Materials - Papers
Organic polymers, such as poly(vinyl alcohol), poly(vinyl pyrrolidone), and poly(styrene), were intercalated into single-walled carbon nanotube sheets by soaking the sheets in polymer solutions. Even for short soak times, significant polymer intercalation into existing free volume was observed. Tensile tests on intercalated sheets showed that the Young's modulus, strength, and toughness increased by factors of 3, 9, and 28, respectively, indicating that the intercalated polymer enhances load transmission between nanotubes.
A Mathematical Model Of Oxide/Carbon Composite Electrode For Supercapacitors, Hansung Kim, Branko N. Popov
A Mathematical Model Of Oxide/Carbon Composite Electrode For Supercapacitors, Hansung Kim, Branko N. Popov
Faculty Publications
A pseudo two-dimensional model is developed for the general application of supercapacitors consisting of an oxide/carbon composite electrode. The model takes into account the diffusion of protons in the oxide particle by employing the method of superposition. RuO2/carbon system is modeled as a specific example. From the simulation data, it is found that the oxide particle size and proton diffusion coefficient have an enormous effect on the performance at high discharge rate due to the limitation of proton transport into RuO2 particles. With increasing carbon ratio, the porosity of electrode increases, which causes the potential drop in …