Influence of the anodization conditions and chemical treatment on the formation of alumina membranes with defined pore diameters

Journal of Porous Materials - Porous anodic aluminum oxide membranes were fabricated via two-step anodization of aluminum in 0.3 M H2C2O4, 0.3 M H2SO4 and 0.17 M H3PO4...     

Effect of Si3N4 Ceramic Particulates on Mechanical,Thermal, Thermo-Mechanical and Sliding Wear Performance of AA2024 Alloy Composites

Silicon - In this investigation, hybrid AA2024 – Si3N4 (0–6 wt.% @ 2%) – SiC (2 wt.%) – graphite (2 wt.%) alloy composites have been fabricated as...     

Hydrogenation of aromatics from low temperature coal tar over novel mesoporous NiMoC/Hβ catalysts

Journal of Porous Materials - The mesopores Hβ-Tx (x?=?1, 2, 3, 4, 5) zeolites were synthesized in different crystallization time (48 h, 72 h, 120 h,...     

Computational and Theoretical Analysis of the Effect of an Aluminum Borate Oxide Film on the Ignition Conditions of Single Aluminum Diboride Particles

Combustion, Explosion, and Shock Waves - Thermogravimetric analysis data were used to determine the activation energy E = 205.9 kJ/mol, the pre-exponential factor...     

Investigation of Crystal Structure,Electrical and Magnetic Properties of Spinel Mn-Cd Ferrite Nanoparticles

Journal of Inorganic and Organometallic Polymers and Materials - Cd1 ? xMnxFe2O4 (x?=?0, 0.25, 0.5, 0.75, 1) spinel ferrite nanoparticle samples were synthesized...     

Influence of Si Content on Fatigue Life for Heat Treated Cast Al-Si-mg Alloy Using Different Quenching Technique

Silicon - Al-Si-Mg aluminum alloy samples were subjected to solution heat treatment at the temperature of 520 °C for 2 h to attain T42 condition. The heat-treated samples...     

Correction to: Efficient room temperature methanol sensors based on polyaniline/graphene micro/nanocomposites

Iranian Polymer Journal - The article listed above was initially published with typo error in Eq. (4).     

Investigation of Single Event Transients on RingFET using 3D TCAD Simulations

Silicon - In this work, the effect of heavy ion radiation on ringFET structures with gate lengths of 32 nm and 20 nm is explored using 3D TCAD simulations. The sensitive position...     

The Influence of n-3 PUFA Supplements and n-3 PUFA Enriched Foods on the n-3 LC PUFA Intake of Flemish Women

Food consumption data of Flemish women of reproductive age collected in 2002 showed a large deficit for ALA and n-3 LC PUFA compared to the recommendations (mean ALA and EPA + DHA intake 1.4 g/day and 209 mg/day, respectively) and indicated a need to tackle the problem of low n-3 PUFA intake. Another recent Belgian study demonstrated that enrichment of commonly eaten food items with n-3 PUFA provides the opportunity to increase the n-3 PUFA intake up to 6.5 g/day and decrease the n-6/n-3 ratio. Since a large supply of n-3 PUFA supplements and n-3 PUFA enriched foods exists on the Belgian market, this study aimed at assessing the influence of these products on the n-3 LC PUFA intake for Flemish women of reproductive age. It was found that n-3 supplements are consumed by 5% of the Flemish women. Of all the n-3 PUFA enriched foods on the Flemish market, margarines and cooking fat are most frequently consumed by young women. The results indicated that a big gap remains between the EPA&DHA intake (mean = 276 mg/day) and the recommendation. Seafood remains the most important source of EPA&DHA. Only 11.6% of the population sample reached an intake level of 500 mg EPA&DHA per day. The study showed that other strategies will be needed to increase the EPA&DHA intake in the long term.     

High-temperature study of radiation cross-linked ethylene–octene copolymers

Polymer Bulletin - Three ethylene–octene copolymers (EOC) with a wide range of octene content (17, 30, and 38 wt%) and with the same melt flow index of 1 g/10 min...     

Antibacterial Activity and Drug Release of Ciprofloxacin Loaded PVA-nHAp Nanocomposite Coating on Ti-6Al-4 V

Journal of Inorganic and Organometallic Polymers and Materials - Here, a new composite coating was introduced for the Ti-6Al-4 V implant, and the different properties were investigated...     

Multi-Objective Optimization of Process Parameters in Pack Siliconizing on AISI D2 Steel

Silicon - In this study, the formation of the silicon coating on the AISI D2 steel with the pack siliconizing method has been investigated. To do so, different times (2, 3, 4 h) and...     

Various Types of Combustion of a Ti + C Granular Mixture with a Different Content of the Gasifying Additive

Combustion, Explosion, and Shock Waves - This paper touches upon the effect of a polyvinyl butyral content (0–2.3%) on the combustion of a Ti + C granular...     

Effect of Compression Pressure on Combustion of Tapes Obtained by Rolling a Ti + 1.7B Powder Mixture

Combustion, Explosion, and Shock Waves - Combustion during self-propagating high-temperature synthesis of Ti + 1.7B reaction tapes obtained by rolling from a powder mixture is...     

Heterogeneous Catalytic Method for the Copper(II)-Catalysed Addition of H-Phosphinates and Secondary Phosphine Oxides to Phenylacetylene

Catalysis Letters - Copper(II) on 4 Å molecular sieve was found to be an efficient heterogeneous catalyst in the addition of different H-phosphinates and secondary phosphine oxides to...     

Investigations on Mechanical and Sliding Wear Performance of AA7075 ˗ SiC/Marble Dust/Graphite Hybrid Alloy Composites Using Hybrid ENTROPY -VIKOR Method

Silicon - In this work, AA7075 ˗ SiC (0–8 wt.% @ step of 2%) / marble dust (8–0 wt.% @ step of 2%) / graphite (3 wt.%) hybrid alloy composites have been...     

Fabrication and Microstructure of Micro and Nano Silicon Carbide Reinforced Copper Metal Matrix Composites/Nanocomposites

Silicon - This study investigates the influence of micro and nano silicon carbide on properties of copper matrix composites/nanocomposites containing up to 4 wt% of reinforcement...     

The two-tier tissue reinforcing and toughening mechanism caused by dual-granularity Si powders ingredient,and dielectric properties in reaction bonded and sintered reaction bonded Si3N4 porous ceramics

With the rapid development of hypersonic vehicles and broadband wave-transparent radome, Si₃N₄ porous ceramics (Si₃N₄-PC) have attracted attention due to their excellent intrinsic properties of Si₃N₄ and high porosity. However, its high porosity results in low strength and toughness, which are fundamental properties for radome. Reaction bonded (RB) Si₃N₄-PC has advantages of dielectric properties and cost over general phase transformation sintering (PTS) and sintered reaction bonded (SRB) Si₃N₄-PC while it has been neglected in recent years. In this study, RB and SRB Si₃N₄-PC prepared by non-aqueous gelcasting and the influence of Si powders ingredient on their properties are discussed in order to illuminate the potential of RB Si₃N₄-PC in wave-transparent materials. The results show that RB Si₃N₄-PC with dual-granularity ingredients of 5 μm & 45 μm produces a two-tier tissue of framework of coarse whiskers enhanced by a network of tiny whiskers. SRB Si₃N₄-PC evolves into a two-tier tissue of framework of columnar and rod-like grains joining together to brace each other. The two-tier microscopic tissue strongly reinforces and toughens the structure and results in higher σ_F and γ_wof. As a result, the RB and SRB Si₃N₄-PC of dual-granularity of 5 μm & 45 μm obtain the maximum σ_F of 109.94 MPa and 119.56 MPa as well as maximum γ_wof of 990.74 J m^-2 and 1167.88 J m^-2, respectively. Furthermore, the ε′ and tanδ of RB and SRB Si₃N₄-PC of dual-granularity of 5 μm & 45 μm are about 4.20 and 4.52 as well as 7.01 × 10^-3 and 22.90 × 10^-3, respectively. It is concluded that RB Si₃N₄-PC of dual-granularity has good mechanical and dielectric properties, which are favorable for radome.     

Unusual ordered mesoporous carbon material with short channels and big pore size: Synthesis and effective adsorption of Cr(VI)

Journal of Porous Materials - A new ordered mesoporous carbon material, characterized by 300–400 nm long nano-channels, 10 nm big pore size and a specific area at...     

Mechanical and Wear Properties of Functionally Graded Cu-11Ni-4Si/ Graphite Composite

Silicon - The key objective of the paper is to investigate the mechanical and wear Properties of functionally graded copper composite (Cu–11Ni–4Si) reinforced with 10 wt%...