Materials Literature
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Nano-sized Al (nAl) features high reactivity that, while desirable for effective energy conversion during the combustion, yields possible issues related to its storage. This paper investigates the ageing behavior of nAl under different relative humidity conditions (RH, from 80% to 10%) at the temperature of 333 K. Fre…
We proposed a new broadband contradirectional coupler composed by subwavelength grating (SWG) waveguides on silicon-on-insulator wafer. The 3-dB bandwidth can reach up to 29 nm and the length of coupling region is only 50 μm.
The novel terpolymer (1-N-4-SAPPDF-Resin-I) has been synthesized by polycondensation of 1-Naphthol-4sulphonic acid and p-Phenylene diamine with Formaldehyde in an acidic medium with molar proportion of reactants (1: 1: 2). To reveal the structure of the resin, the resin was characterized by elemental analysis and a sp…
Here we analyze the mechanical properties of nano-sized amorphous silica specimens under uniaxial tension at two temperatures (moderate and severe stresses) using the molecular dynamics method with Tersoff and ReaxFF potentials. The simulation results reveal quantitative differences in elastic properties and stress le…
Over the past decades, attaching of carbon nanotube with metal oxide is an effective way to construct hybrid carbon with interesting new properties. MWCNT/ MnO 2 /POAP nanocomposite thin film is synthesized using a pulsed potential electrodeposition technique on a graphite electrode. The electrochemical properties of…
Polysorbates (Tweens) are widely used in pharmaceutical formulations as excipients, such as stabilizer or solubilizer, for poorly soluble drugs. The efflux transporters ABCB1 (P-glycoprotein, P-gp) play an essential role in limiting the oral bioavailability of drugs. P-gp is expressed in the intestinal epithelium, the…
In this study, the biodegradable blends of thermoplastic starch/poly(butylene adipate-co-terephtalate) (TPS/PBAT) and oxidized thermoplastic starch/poly(butylene adipate-co-terephthalate) (OTPS/PBAT) were melt compounded in the presence of styrene-acrylic multi-epoxidized polymeric compatibilizer. The need for OTPS is…
It is well known that combustion of biomass derived fuels may lead to problems with high-temperature corrosion (HTC). The HTC process is largely based on the release and transformation of chlorine, sulphur and alkali components during the combustion process. However, these components may also interact with other criti…
In the field of household products like air conditioner, food protective wrapper silver foil, compressor, fabrics and washing machine manufacture, subscriber or consumer utilized engineered silver nanoparticles of multi bigger size (100 nm size range or more) demand has been extensively increased with increase of nega…
The aim of this work was to investigate the influence of the process condition on the morphology of PP/MWCNT nanocomposites and its effect on the electrical properties, experimentally developed in this study. Electrical and morphological characterization was performed in order to analyze the multilayered morphology sk…
The influence of preliminary heat treatment, involving quenching and further aging at 190°C for 10 h, on the grain structure, hardness, and tensile strength of hot-pressed commercial D16 alloy severely deformed via room-temperature high pressure torsion (HPT) (10 revolutions under P = 6 GPa) was investigated. In spite…
Hybrid composites with natural and synthetic fibers have captured the interests of many researchers. In this work, Kevlar/oil palm Empty Fruit Bunch (EFB)/Kevlar and carbon/oil palm EFB hybrid/carbon composites were prepared using hand lay-up technique by keeping the oil palm EFB fiber as the core material. The tensil…
In this research work cobalt-ferrite (CoFe2O4) nanoparticles were synthesized by a simple, general sol-gel auto-combustion method. For this study, electromagnetic (EM) wave absorbing coatings with different weight fractions of nano-carbon and CoFe2O4 (which, arises from both dielectric and magnetic contributions) and…
The fracture toughness characteristics of ZrO2ceramics were determined experimentally using an original technique of wedging small-sized chevron notch specimens developed at the Institute of Strength Physics and Materials Science SB RAS (Russia) in the laboratory of physical mesomechanics of materials and non-destruct…
Nanocrystalline cellulose (NCC) has been attributed as a noble material due to its superior properties for miscellaneous applications in medical science, pharmaceutical production and engineering fields. The major problems associated with the production of NCC are low production rate and inefficient process. Alkaline…
Corrosion under insulation (CUI) is one of the predominant issues affecting process of Oil and Gas and Petrochemical industries. CUI refers to external corrosion, but it is difficult to be detected as the insulation cover masks the corrosion problem. One of the options to prevent CUI is by utilizing the protective coa…
Carbon nanotubes (CNTs) were synthesized by chemical vapor deposition technique at a broad range of temperatures, i.e. 550°C to 950°C (at 100°C intervals). CNTs were synthesized by flowing source and carrier gases (ethane, argon, and hydrogen) over Fe catalyst in a quartz tubular reactor. CNTs were melt mixed with a p…
In this study, the influence of geometrical defects on the High Cycle Fatigue (HCF) resistance of aluminium is investigated, with emphasis on the impact of local microstructure on fatigue crack initiation. In order to meet this objective, an experimental approach, using a commercial purity polycrystalline aluminium al…
Nickel titanium (NiTi) alloy is a unique alloy that exhibits special behavior that recovers fully its shape after being deformed to beyond elastic region. However, this alloy is sensitive to any changes of its composition and introduction of inclusion in its matrix. Heat treatment of NiTi shape memory alloy to above 6…
In this study, H 2 gas produced by the hydrolysis of sodium borohydride (SBH) in an alkaline medium via phosphoric acid catalyst for PEM fuel cell applications was analyzed.The purity of H 2 gas investigated by electrocatalytic method.High purity 0.5M H 2 SO 4 solution with immersed smooth surface Pt electrodesaturate…