Materials Literature
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An effective threading of austenitic steel with HSS taps protected by CrAlN, TiCN and TiN PVD coatings was tested. The chrom-nickel austenitic non-stabilized steel (X5CrNi 18-10), was threaded with the HSS-E M6-6H Narex Zdanice taps at the cutting speed vc=10 m/min, with outer cooling fluid Cimperial HD 801-03 -10%, a…
Based on experimental data, the research work on warp knitted spacer fabrics gives compression laws when structural parameters (such as diameter of spacer yarn, areal density, spacer yarn angle and the thickness of spacer fab... | Find, read and cite all the research you need on Tech Science Press
Low-pressure alcohol catalytic chemical vapor deposition (LP-ACCVD), which is an ACCVD method at a lower pressure (<1 Pa) than that in the conventional method, has been attracting much interest because it enables the low-temperature growth of single-wall carbon nanotubes (CNTs). However, the growth rate of CNTs by LP-…
. Based on two quantum chemical descriptors (the thermal energy Ethermal and the total energy of the whole system EHF) calculated from the structures of the repeat units of polyacrylamides by density functional theory (DFT), the support vector regression (SVR) approach combined with particle swarm optimization (PSO),…
Long-term exposure at elevated temperatures results in a degradation of the short-term tensile properties of metal that can cause the deterioration in reliability of power equipment. Therefore, in order to avoid unscheduled outages and to guarantee fail-safe operation of equipment periodic control of the tensile prope…
In polymer electrolyte fuel cells (PEFCs), many kinds of carbonaceous materials are used as electrocatalyst support, gas diffusionlayer, bipolar plate, etc. These carbons are exposed to a strongly oxidative environment of high electrode potentials,high oxygen concentrations, high temperature, and high water content. T…
Atmospheric pressure plasma jet (APPJ) of N 2 has been applied to promote adhesion between the epoxy resin post and composite core material due to the chemical active functional groups created. The APPJ was proved to be able to improve adhesive ability of the epoxy resin through the polar groups such as carbonyl group…
The AB2 type hyperbranched poly(amine ester) (HBPAE) can be used as adsorbent to adsorb nitrite from aqueous solution due to a large number of terminal hydroxyl groups, where the hydrogen-bonds could formed between OH and NO2-. However, the hydrophilic properties of HBPAE limited their utility in the application becau…
This chapter reports on the propensity of amine-based post combustion CO 2 capture (PCC) solvents to form deleterious nitrosamine compounds in the presence of NO x . The formation and emission of these materials from the PCC process has not been investigated in detail. The entrainment of these degradation products in…
The curing kinetics of the novel epoxy system for hot-melt prepreg was investigated using nonisothermal differential scanning calorimetry (DSC), and determined by Kissinger, Ozawa and Crane methods in this paper. The results showed that the value of Ti, Tp, and Tf were 446.5K, 454.7K, 491.4K, respectively. Furthermore…
Deposition of Cluster-Free B-doped Hydrogenated Amorphous Silicon Films Using SiH4+B10H14 Multi-Hollow Discharge Plasma Chemical Vapor Deposition, Koga, Kazunori, Nakahara, Kenta, Kim, Yeon-Won, Matsunaga, Takeaki, Yamashita, Daisuke, Matsuzaki, Hidefumi, Uchida, Giichiro, Kamataki, Kunihiro, Itagaki, Naho, Shiratani,…
By the first-principles calculations based on the density functional theory, the tensile strength of Al metal with dislocations of twist grain boundaries (GBs) is predicted from its electronic structure to its essential mechanical properties. The results show that the theoretical tensile strength for Al twist GB is ab…
This paper describes the preparation and thermal conductivity characterization of solid glass micro-spheres (SGMs) filled polymer composites. SGMs of different sizes are embedded in epoxy resin to develop composites by hand layup technique. A numerical simulation of the heat-transfer within the composites is made by u…
Solid particles in discontinuous reinforcement metal matrix composites (DRMMCs) drastically improve their strength. Since the strength of DRMMCs is improved by the Orowan mechanism, smaller particles, such as nanoparticles, are effective as dispersoids. In this study, the effects of nanoparticles on the sliding wear b…
In the spirit of the International Workshop for Functional Materials we present a tutorial overview of our understanding of how extended materials exposed to an electrostatic field can be treated theoretically. We concentrate on materials that are regular so that they can be approximated as being infinite and periodic…
Microcrystalline silicon thin films with and without a seed layer were deposited using very high frequency plasma enhanced chemical vapor deposition method at a high growth rate. The influence of the seed-layer method on the film growth and structure were investigated using spectroscopic ellipsometry(SE), Raman spectr…
The term “nanopharmaceuticals” covers discovery, development, and delivery of drug. The post-genomic era is revolutionizing the drug discovery process. The new challenges in the identification of therapeutic targets require efficient and cost-effective tools. Label-free detection systems use proteins or ligands couple…
This chapter will focus on nanobiotechnologies that are relevant to applications in biomedical research, diagnostics, and medicine. Invention of the microscope revolutionized medicine by enabling the detection of microorganisms and study of histopathology of disease. Microsurgery was a considerable refinement over cru…
In-situ (mobile) repair technologies are used for specialised equipment and machinery repairs, as they offer considerable cost reductions and increase the technological lifespan of industrial equipment.Such parts as frames, joints or buckets can be renewed to an excellent standard using insitu technologies.In-situ ren…
The intrinsic energy-dispersion at each energy level of electrons in a semiconductor material is assumed and then the electron-gas dimensionality could manifest a continuous evolution from 3 to 0. This leads to a new physical picture and may impact on relevant technologies.