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Full-Text Articles in Engineering
Pan Nanofibers And Nanofiber Reinforced Composites, Cheng Ren
Pan Nanofibers And Nanofiber Reinforced Composites, Cheng Ren
Department of Mechanical and Materials Engineering: Dissertations, Theses, and Student Research
Nanomaterials play an important role in the development of nanotechnology. They possess unique mechanical, physical, and chemical properties coupled with small size and ultrahigh surface area that can provide critical advantages for applications. Continuous nanofibers attract special interest due to their dual nano-macro nature and ability to bridge scales. Nanofibers are being considered for a broad range of applications spanning advanced filters, separation membranes, ultrasensitive sensors, micro/nano actuators, nanoprobes, tissue engineering scaffolds, protective and smart closing, and multifunctional composites. Most of these applications require certain mechanical properties and robustness. However, the literature on the mechanical behavior of nanofibers and their …
Free-Standing Nanocomposites With High Conductivity And Extensibility, Kyoung-Yong Chun, Shi Hyeong Kim, Min Kyoon Shin, Youn Tae Kim, Geoffrey M. Spinks, Ali E. Aliev, Ray H. Baughman, Seon Jeong Kim
Free-Standing Nanocomposites With High Conductivity And Extensibility, Kyoung-Yong Chun, Shi Hyeong Kim, Min Kyoon Shin, Youn Tae Kim, Geoffrey M. Spinks, Ali E. Aliev, Ray H. Baughman, Seon Jeong Kim
Faculty of Engineering and Information Sciences - Papers: Part A
The prospect of electronic circuits that are stretchable and bendable promises tantalizing applications such as skin-like electronics, roll-up displays, conformable sensors and actuators, and lightweight solar cells. The preparation of highly conductive and highly extensible materials remains a challenge for mass production applications, such as free-standing films or printable composite inks. Here we present a nanocomposite material consisting of carbon nanotubes, ionic liquid, silver nanoparticles, and polystyrene- polyisoprene-polystyrene having a high electrical conductivity of 3700 S cm -1 that can be stretched to 288% without permanent damage. The material is prepared as a concentrated dispersion suitable for simple processing into …
Recent Developments In Magneto-Optic Garnet-Type Thin-Film Materials Synthesis, Mohammad Nur E Alam, Mikhail Vasiliev, Viacheslav Kotov, Kamal Alameh
Recent Developments In Magneto-Optic Garnet-Type Thin-Film Materials Synthesis, Mohammad Nur E Alam, Mikhail Vasiliev, Viacheslav Kotov, Kamal Alameh
Research outputs 2013
Magneto-optic (MO) garnets are used in a range of applications in nanophotonics, integrated optics, communications and imaging. Bi-substituted iron garnets of different compositions are the most useful class of materials in applied magneto- optics due to their excellent MO properties (large Faraday effect) and record-high MO figure of merit among all semi- transparent dielectrics. It is highly desirable to synthesise garnets which possess simultaneously a high MO figure of merit and large uniaxial magnetic anisotropy. However, the simultaneous optimization of several material properties and parameters can be difficult in single-layer garnet thin films, and it is also challenging to prepare …
Polyamide 6/Multiwalled Carbon Nanotubes Nanocomposites With Modified Morphology And Thermal Properties, Nasir Mahmood, Mohammad Islam, Asad Hameed, Shaukat Saeed
Polyamide 6/Multiwalled Carbon Nanotubes Nanocomposites With Modified Morphology And Thermal Properties, Nasir Mahmood, Mohammad Islam, Asad Hameed, Shaukat Saeed
Australian Institute for Innovative Materials - Papers
Pure polyamide 6 (PA6) and polyamide 6/carbon nanotube (PA6/CNT) composite samples with 0.5 weight percent loading of pristine or functionalized CNTs were made using a solution mixing technique. Modification of nanotube surface as a result of chemical functionalization was confirmed through the presence of lattice defects as examined under high-resolution transmission electron microscope and absorption bands characteristic of carboxylic, sulfonic and amine chemical groups. Microstructural examination of the cryogenically fractured surfaces revealed qualitative information regarding CNT dispersion within PA6 matrix and interfacial strength. X-ray diffraction studies indicated formation of thermodynamically more stable α-phase crystals. Thermogravimetric analysis revealed that CNT incorporation …
Nanocomposites Of Silicon And Carbon Derived From Coal Tar Pitch: Cheap Anode Materials For Lithium-Ion Batteries With Long Cycle Life And Enhanced Capacity, Yun-Xiao Wang, Shulei Chou, Hua-Kun Liu, S X. Dou
Nanocomposites Of Silicon And Carbon Derived From Coal Tar Pitch: Cheap Anode Materials For Lithium-Ion Batteries With Long Cycle Life And Enhanced Capacity, Yun-Xiao Wang, Shulei Chou, Hua-Kun Liu, S X. Dou
Australian Institute for Innovative Materials - Papers
From energy and environmental consideration, an industrial waste product, coal tar pitch (CTP), is used as the carbon source for Si/AC composite. We exploited a facile sintering method to largely scale up Si/amorphous carbon nanocomposite. The composites with 20 wt.% silicon with PVdF binder exhibited stable lithium storage ability for prolonged cycling. The composite anode delivered a capacity of 400.3 mAh g−1 with a high capacity retention of 71.3% after 1000 cycles. Various methods are used to investigate the reason for the outstanding cyclability. The results indicate that the silicon nanoparticles are wrapped by amorphous SiOx and AC in Si/AC …