Materials Literature
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Portland cement (PC) is a fundamental component of the construction industry. However, its manufacturing process is responsible for ~5 % of global anthropogenic CO2 emissions. Given current demand for PC which is expected to triple by 2050, there is an urgent need for the production of alternative binders with a lower…
Herein we present the synthesis and application of triazine derivatives as flame retardants on cotton. Novel phosphorus−nitrogen-containing compounds ( TPN1, TPN2, TPN3 and TPN4 ) were prepared by organic reactions of cyanuric chloride and phosphonates. They were characterized by analytical tools such as proton ( 1 H)…
Aluminum is the most abundant crustal metallic element on the earth and 100% recycled in theory. Controlled hydrogen generation (HG) by reaction of aluminum with water could provide a renewable energy cycle to address the global energy problem. In this perspective, we present the state of art in the principle, mechani…
The effect of a stearic imidazoline derivative, namely, 1-[N,N’-bis(hydroxylethylether) –aminoethyl]-2-stearicimidazoline (HASI) on the protective property of oxide film formed on the carbon steel in saturated Ca(OH)2 solution was investigated by electrochemical measurements in conjunction with Raman spectroscopy tech…
We herein describe our investigation of the rheological and electrical characteristics of single- and multi-walled carbon nanotube dispersions. The effect of the viscosity of the dispersing liquids was investigated under shear. At low shear rates, a dispersing liquid with a low viscosity caused the relative viscosity…
In order to understand the aquatic ecosystem structure of Lugu Lake,the phytoplankton composition was investigated seasonally at January,April,August and November in 2010.Phytoplankton of 6 classes,21 orders,35 families,72 genus and 146 species were identified in Lugu Lake through one year investigation.Species compos…
The relationship between cellulose and lodging resistance of wheat straw was studied in the paper.The cellulose was extracted from wheat straw by using microwave-assisted and acetic acid/nitric acid /water system.The structure and morphology of cellulose was characterized by means of fluorescent microscopy,fourier tra…
Multiple foreign ions doping affects alite through the mutual interactions of these ions,which is significantly deviated from the effect of single doping.In this work,the effect of combined doping with seven typical foreign ions such as Na+,Mg2+,etc.on the metastable structure and allotropic phase transition of alite…
Impedance spectroscopy analysis was performed under different oxygen pressures, on dense YSZ/ZnO composites with a ZnO content varying from 3 to 25 vol% and two concentrations, 8 and 10 mol% of Y 2 O 3 in YSZ. Raman spectroscopy showed that the cubic zirconia phase containing 8 mol% Y 2 O 3 is not stable in contact wi…
Design of Pavement is based on the premise that minimum specified structural quality will be achieved for each layer of material in the pavement system. Each layer of road must resist shearing. It should avoid excessive deflections that cause fatigue cracking within the layer or in overlying layers, and prevent excess…
Analysis of energy requirement for hemp fibre decortication using a hammer mill. Canadian Biosystems Engineering/Le gnie des biosystmes au Canada 54: 2.1-2.8. Hemp fibre decortication is an important procedure in hemp fibre processing. The cost of energy during decortication has a direct impact on the commercial value…
The influence of Mg addition on mechanical properties and microstructure of Al-Cu-Mg alloy was investigated. Cast Al -Cu-Mg alloys have widely been used in aircraft, aerospace, industrial and architectural applications for their good mechanical properties, high strength-to-weight ratio. An intensive study of these cas…
Vigna radiata -amylase was immobilized onto activated woven Bombyx mori silk fabric with glutaraldehyde and amino groups enrichment made by chlorination and by treatment with sodium nitrate (NaNO 3 ). The immobilization of enzyme onto sodium nitrate treated and chlorinated woven Bombyx mori silk fabric was excellent b…
Sm2Co17 magnets have high thermal resistivity and corrosion resistance with over 240 kJ/m3 of (BH)max, which are well balanced ones. But as NdFeB magnets are superior to both magnetic properties and costs, the Sm2Co17 magnets are used in severe circumstance such as automobile applications. The magnetic property of Sm2…
In order to propose a method for producing water trees that measure a few millimeters in length in 20kV class to 60kV class XLPE cables, we discussed defect types and thermal conditions. First, surface roughness, needle protrusions, and line cracks were formed on the XLPE insulation surface of 6.6kV cables, and it was…
OBJECTIVES: Nanomaterials are currently used in electronics, industrial materials, cosmetics, and medicine because they have useful physicochemical properties, such as strength, conductivity, durability, and chemical stability. As these materials have become widespread, many questions have arisen regarding their effec…
In this study, Acoustic Emission (abbreviated as AE) sensor was fabricated using (Na,K,Li)(Nb,Ta,Zn)O3 system ceramics using thickness-shear-mode. The thickness-shear-mode piezoelectric device with the size of 8 × 6× 8 mm3 was determined from the result of ATILA simulation. Planar electromechanical coupling factor kp,…
It is crucial for proper insulation design of cast resin transformer to consider voids and delamination which might exist in cast molding because of several surface boundaries between resin and conductor. Such defects in the insulator lead to reduction of the life of the apparatus. This paper deals with investigation…
The Gas Insulated Substation (GIS) have various advantages like Compactness, immunity from environmental conditions, high operational reliability, low maintenance cost. In a number of GIS installations, the main design considerations involved in gas insulated equipment are at cone insulator, gas and metal interface. H…
In this work we continue to investigate the well-posedness for innitesimal dislocation based gradient viscoplasticity with linear kinematic hardening. We assume an additive split of the displacement gradient into non-symmetric elastic distortion and non-symmetric plastic distortion. The thermodynamic potential is augm…