Materials Literature
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The paper introduces the traditional and degradation preparation methods of chitosan.Degradation is used widely with the simple process,high yield,and pollution-free advantages in the present.We summarize its application in the food industry,medicine field,agriculture,and water treatment,and analysis the current statu…
51 V NMR measurements at ambient pressure and precise magnetic susceptibility measurements under pressure were performed on quasi-one-dimensional conductor, β-Pb 0.33 V 2 O 5 . The observed spectra demonstrates there is no magnetic ordering at low-temperature ∼5 K. Under relatively low-pressure ∼0.5 GPa, the magnetic…
The SiC nano-bar relaxation has been investigated using MD method. The Tersoff potential is adopted as the potential function. The characteristic of the homeostasis of SiC nano-bar relaxation is demonstrated. The nano-bar is affected by the strong surface effect and small size effect. The phenomena of torsion and bend…
In the framework of the HTTR (High Temperature Engineering Test Reactor) project, Japan Atomic Energy Agency has been conducting R&D on thermo-chemical Iodine-Sulfur (IS) process for large scale hydrogen production. Since the IS process constitutes corrosive environments, screening of the materials of construction is…
High Ba2+ ion conduction in a solid, which is within the range for practical application, was successfully realized by doping Ba(NO3)2 into the interstitial open spaces present in a cubic (Gd0.4Nd0.6)2O3 solid solution.
The electro jet drilling (EJD) process is gaining prominence in the machining of micro and macro holes in difficult-to-machine materials used in aerospace, electronics and computers, medical, and automobile industries. As the trend towards miniaturization continues, this process is gaining increasing importance as it…
This study examines the ball-milling of CVD-processed multi-wall carbon nanotubes for cutting and opening their tips. Results show that dry milling causes nanotubes to rapidly collapse, hence transforming into graphite structure, while wet milling with some organic compounds effectively shortened and opened the nanotu…
Single wavelength optical monitoring in intermittent mode was investigated. The achieved coincidence between theory and experiment is outstanding. This monitoring technique enables rapid prototyping with tight specifications and high yield in large box coaters.
The structure of blends of isotactic polypropylene with ethylene-propylene oil was studied by light and atomic force microscopy, X-ray diffraction, and DSC. It was shown that the blends are heterogeneous systems which contain semicrystalline PP and oil crystallizing at low temperatures. An increase in the oil content…
If we can define the word "functionality" as the special interaction between materials, the large surface is regarded as one of the most basic physical properties. Hence, the need of a porous material is very high. Especially the creation of multi porous structures by using the macromolecular self-organization mechani…
Transmission electron microscopy (TEM) analyses of the defects formed in epitaxial SrRuO3 films on SrTiO3 (001) substrates are reported. With preparing three different forms of TEM specimens, i.e. plan-view, cross-sectional and free-standing specimens, various TEM techniques were implemented with placing emphasis on t…
Comparison was made for the citrate stabilized gold colloids prepared sonochemically and thermally. In the sonochemical reduction system, purge gas had large influence on the formation of gold nanoparticles, while little effect was observed for the thermal reduction system. The average diameter of sonochemically prepa…
EPR Study of Paramagnetic Defects in Clay Minerals Radiation induced defects (RID-s) and transition metal ion impurities were revealed by EPR (Electron Paramagnetic Resonance) spectroscopy in kaolinites from a number of Polish deposits. Arelationship between the intensity of the EPR signals of the RID-s and quantity o…
A nanocomposite material based on polyfluorene (PF) loaded with a carbon black, namely Ketjen Black (KB), was investigated electrochemically as a cathode material for high-energy electrochemical capacitors. The nanocomposite was prepared by a chemical oxidation of fluorene monomer dissolved in the KB suspension. From…
Patterned films of multiwall carbon nanotubes (MWCNTs) were fabricated by the “wet” deposition of MWCNT dispersion on a patterned substrate. Films in the form of stripes or lattices of micrometer dimensions and variable thickness were obtained. The films were uniform and adhered strongly to the substrates. Field-emiss…
The thermal oxidation of fine aluminum (Al) powders in carbon dioxide (CO2) gas was investigated for the purpose of metal-based propulsion fuel development. The thermal behavior and reaction energy was studied using simultaneous thermogravimetric (TG) analysis and differential scanning calorimetry (DSC). The reactivit…
Studies of amorphous (a‐) semiconductors have been driven by technological advances as well as fundamental theories. Observation of electrical switching, for example, fueled early interest in a‐chalcogenides. More recently a‐chalcogenide switching has been applied quite successfully to DVD technology where the quest f…
Nanocrystalline ZnO of various shapes was obtained without the use of catalysts by dry oxidation of Zn. Scanning Electron Microscopy results showed that the oxidation of zinc single crystals at temperatures below the melting point of Zn lead to the formation of a zinc oxide layer of flakes‐type structure covering the…
Antimicrobial (AM) packaging is one of the most promising active packaging systems. Increase demand in food safety, quality, convenience and environmental concerns associated with the handling of plastic waste has emphasized the importance in developing biodegradable and edible films from natural polymers, such as sta…
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