Materials Literature
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It won't stick! Aligned carbon nanotube films were used as templates in the dip coating of polymers for biomedical applications. The resulting nanostructured polymeric surfaces have excellent anti-adhesion to blood platelets, good blood compatibility, and superhydrophobicity. The SEM image shows the side view of a fil…
Abstract The present review discusses the most important aspects to take into consideration to improve the properties of γ‐Al 2 O 3 as a support for catalytic applications. We show that the synthetic route to γ‐Al 2 O 3 is the starting point that determines the micro‐ and macrostructure of the oxide and, consequently,…
Although the thermal properties of millimeter-sized carbon nanotube mats and packed carbon nanofibers have been readily measured, measurements for a single nanotube are extremely difficult. Here, we report a novel method that can reliably measure the thermal conductivity of a single carbon nanotube using a suspended s…
Synthetic fibres are more susceptible to thermal damage and have to be processed at lower spindle speeds than cotton on ring spinning machines. Blends of polyester-cotton were spun using ring spinning machine at various spindle speeds. Analysis of the properties of the yarns and the fibres in the yarn revealed that sp…
Adsorption, desorption and migration of platinum and nickel on a passive carrier—graphite monolayer on rhenium—is studied. It is found that on this surface, platinum and nickel exist in two phases: in the form of physisorbed atoms and in close packed islands. The kinetics of growth and dissolution of platinum islands…
Extended abstract of a paper presented at Microscopy and Microanalysis 2005 in Honolulu, Hawaii, USA, July 31--August 4, 2005
Article Stress-Strain Behavior of Polyethylene Terephthalate) (PET) During Large Plastic Deformation by Plane Strain Compression. Part II: The Stress-Strain Temperature (SST) Superposition Principle was published on August 1, 2005 in the journal Journal of Polymer Engineering (volume 25, issue 5).
De-vulcanization of vulcanized elastomers represents a great challenge because of their three-dimensional network structure. Sulfur-cured gum natural rubbers containing three different sulfur/accelerator ratios were de-vulcanized by thio-acids. The process was carried out at 90 °C for 10 minutes in an open two-roll cr…
Extended abstract of a paper presented at Microscopy and Microanalysis 2005 in Honolulu, Hawaii, USA, July 31--August 4, 2005
Functionally graded materials are a new and attractive class of materials incorporating an engineered spatial variation in composition and/or microstructure: this idea has immediately revealed successful since it allows to reach peculiar mechanical properties such as resistance to wear and contact damage. As a matter…
Cadmium Telluride: Iodine nanoparticle thin films were prepared by spraying iodine doped CdTe nanoparticles dispersed in 1-Butanol, on the glass substrates kept at 200°C for 20 min. Iodine doped CdTe nanoparticles had been prepared by adding trace amounts of Iodine powder in addition to stoichiometric ratios of Cd and…
The conductor loading method has been used for creating a lossy dielectric material with a desired loss tangent. This method may also be applicable for developing high dielectric constant materials. In this paper, we will present the experimental results of the dielectric properties of BaTiO/sub 3/ and BaTiO/sub 3/ -p…
Extended abstract of a paper presented at Microscopy and Microanalysis 2005 in Honolulu, Hawaii, USA, July 31--August 4, 2005
In industrial applications, such as automated on-line semiconductor production, there is a growing realization of the need for the development of a procedure for periodic performance testing of the image sharpness of the scanning electron microscope. Two statistical and comparative measures of image sharpness based on…
In their regulations, the U.S. Environmental Protection Agency and the U.S. Nuclear Regulatory Commission permit the omission of features, events, or processes with probabilities of <10(-4) in 10(4) yr (e.g., a constant frequency of <10(-8) per yr) in assessments of the performance of radioactive waste disposal system…
A time-dependent gas-phase absorption-desorption technique has been used to evaluate the isotope effect on the diffusive transport parameters of hydrogen isotopes in polycrystalline tungsten and the reduced activation ferritic-martensitic steel OPTIFER-IVb.Experiments have been run with both protium and deuterium obta…
The static and dynamic states of the human body directly determine the shape and construction of clothes. Ideally, clothing should provide comfort and protection for the wearer. However, if comfort and mobility are to be maximised, the garment designer has to sacrifice style. The design of clothes worn on the upper bo…
The use of catalysts to improve the exchange kinetics between hydrogen isotopes in the gas phase and that in the solid phase was investigated. Granules of alumina, silica and molecular sieve were coated with platinum as the catalyst. The granules saturated with water at room humidity were packed in a 2-cm diameter col…
This study aims at clarifying the relationship between the surface integrity of PTFE finished by an ultra-precision diamond cutting and the adhesion strength of a metal thin film. As the first step of this study, the basic properties such as surface integrity in the diamond cutting of PTFE and the effect of the surfac…
Abstract We have applied first principles computations to predict the properties of complex hydrides related to the alanate NaAlH 4 , a very promising class of systems for reversible hydrogen storage. The effect of partial substitution on the Na site (by Li or K), and on the Al site (by B or Ga) on the thermodynamic s…