Showing papers in "Composites Science and Technology in 2008"

TL;DR: In this paper, a review of the recent advances in nanotubes and nanotube-based composite sensors and actuators, with a particular emphasis on their electromechanical behavior is presented.

TL;DR: In this paper, the effects of temperature on the viscoelastic properties of composites were studied by dynamic mechanical analysis (DMA) and morphological studies by scanning electron microscopy (SEM) demonstrated that better adhesion between the fiber and the matrix was achieved.

TL;DR: In this paper, the reinforcing potential of cellulose nanofibers obtained from agro-residues was investigated in a starch-based thermoplastic polymer, and the results showed that the tensile strength and modulus of the nanocomposite films revealed significantly enhanced properties compared to the pure thermoplastics.

TL;DR: In this paper, the authors compared the impact properties of PLA and Cordenka rayon fibres and flax fibres, and found that the PLA composite had the highest impact strength (72kJ/m2) and tensile strength (58 MPa).

TL;DR: In this paper, the reinforcement of polylactic acid (PLA) using microfibrillated cellulose (MFC, mechanically fibrilled pulp, mostly consisting of nanofibers) is reported, with the goal of making sustainable "green-composites".

TL;DR: In this paper, a hybrid composite architecture of carbon nanotubes (CNTs), advanced fibers and a matrix is described, from CNT synthesis and characterization through to standard mechanical and electrical laminate tests.

TL;DR: In this article, state-of-the-art developments on processing, microstructural characterization and mechanical properties of particulate and whisker reinforced TMCs are discussed, with particular attention given to the structural-mechanical property relationships of high performance TMC.

TL;DR: In this paper, an in situ encapsulation method demonstrating over an order of magnitude size reduction for the preparation of urea-formaldehyde (UF) capsules filled with a healing agent, dicyclopentadiene (DCPD), was presented.

TL;DR: In this paper, the failure mechanisms of sisal fiber failure were described and discussed in terms of the fiber microstructure as well as defects in the fibers, and the cross-sectional area of the fibers was measured using scanning electron microscope (SEM) micrographs and image analysis.

TL;DR: In this article, single-walled carbon nanotubes (SWNTs) filled nanocomposite SWNT/epoxy resin composite with good uniformity, dispersion and alignment of SWNTs and with different SWNT concentrations was produced by solution casting technique.

TL;DR: In this paper, an epoxy resin was modified with two different types of carbon nanotubes and with carbon black, in order to achieve an electrical conductivity, which was used for both, damage and load detection of fiber reinforced composites.

TL;DR: In this article, carbon nanotubes were grown by chemical vapor deposition (CVD) on different carbon fibre substrates namely, unidirectional (UD) carbon fiber tows, bi-directional (2D) carbon fibre cloth and three dimensional (3D) felt.

TL;DR: In this paper, the mass and linear oxidation rates of the ZrB 2 -20 -vol%SiC composites for 10min were −0.23mg/s and 0.66μm/s, respectively.

TL;DR: In this article, carbon fiber reinforced epoxy/clay nanocomposites (CFRENCs) were manufactured through hot melt lay-up plus autoclave process.

TL;DR: In this paper, an experimental device is proposed which enables to measure the tension during a picture frame test, and it is shown that initial tensions modify the response in shearing, particularly in the first part of the shear curve.

TL;DR: In this paper, a new model for the generation of the transversal cross-section of long-fibre reinforced composites with high fiber volume fraction, characterised by a random distribution of the reinforcements, is presented.

TL;DR: In this paper, a study was conducted to fibrillate cellulose from micro to nano scale and evaluate how these microfibers and nanofibrils affected the mechanical and thermal properties of thermoplastic polyurethane.

TL;DR: In this article, a multi-layer Al/Cu composite including homogeneously distributed fragmented copper layers in an aluminum matrix was achieved by accumulative roll bonding (ARB) process using Al 1100 and Cu strips.

TL;DR: In this article, an accurate and suitable data reduction scheme is developed to measure the fracture energy of adhesive joints under pure mode I loading, which is based on the crack equivalent concept and is applied to the double cantilever beam specimen.

TL;DR: In this article, the chemical composition of natural lignocellulosic fibers extracted from Egyptian industrial crops, viz. cotton stalk, rice straw, bagasse, and banana plant waste, was determined.

TL;DR: In this article, carboxylic and ester functionalized multi-walled carbon nanotube (MWCNT)/poly(vinylidene fluoride) composites were fabricated by evaporating suspensions of the nanotubes in PVDF.

TL;DR: In this paper, the authors find composites to have significant economic potential when considering emerging advances in the polymer composite body-in-white design against the mild-grade steel body currently on the road.

TL;DR: In this paper, a powder can rolling technique is used to fabricate carbon nanotube-reinforced aluminium strips, which can have numerous attractive applications in the aerospace, automotive and electronics industries.

TL;DR: In this paper, the effect of the interlayer on the fracture toughness of carbon fiber reinforced plastics/carbon nanofiber (CFRP/CNF) hybrid laminates was investigated for both mode I and II deformation.

TL;DR: In this paper, a comprehensive account on the derivation of boundary conditions for unit cells is presented, where boundary conditions are derived entirely based on considerations of symmetries which are present in the microstructure.

TL;DR: The mechanical reinforcing efficiencies of two types of nanoparticles, nanotube and nanoplatelet, are compared from a micro-mechanics perspective and results indicate that nanotubes generally have superior mechanical reinforcement potential beyond that of nanoplatelets for aligned orientations, while the high in-plane isotropic modulus of nanoplatable allows better reinforcing in random orientations.

TL;DR: In this paper, the concentration dependence of the thermophysical and electrical behavior of composites, based on poly(vinyl chloride), filled with multi-walled carbon nanotubes (CNTs), was investigated.

TL;DR: ZrB2-20vol%SiC ultra high temperature ceramic (UHTC) was prepared by hot-pressing in this article, and the flat-face models were conducted under ground simulated atmospheric re-entry conditions using arc-jet testing with heat fluxes of 1.7 MW/m 2 and 5.4 MW 2 under subsonic conditions.

TL;DR: In this paper, the effect of nanotube waviness on the electrical conductivity of carbon-nanotube-based composites using a percolation model was investigated.