Materials Literature
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This paper investigates a fractionation method ofcellulosic fibres in dry state. Although processing ofcellulosic fibres in airstream has been utilised fordecades in airlaid processes, no attempts tofractionate fibres in dry state have been reported. Ourmain goal is to determine how fibre properties andfibre consisten…
Protective clothing systems composed ofpermselective polymer film laminates are analternative to standard air-permeable garments basedon activated carbon. These polymer layers aredesigned with high water vapor permeation rates andlow permeation of chemical warfare agents. Polymerfilms that have a significant water vap…
The use of radio and microwave frequency is gainingimportance for industrial applications such asheating, drying, and other processing. The mostimportant advantage of using microwave is that it isnon-contact or localized heating and the heat isproduced within the material. This can be much moreeffective than indirect…
The requirements in terms of wearing comfort withsportswear underwear and outerwear are widelylinked to the use of elastane fibers. Today,elastomeric plated jersey fabric is one of the mostcommon fabrics produced with large-diametercircular knitting machine (LCKM). However, therelation between elastane proportion and…
Moisture flow through blended material is a complexphenomenon. Clothing should possess good watervapour as well as liquid moisture transmissionproperty, for providing the thermophysiologicalclothing comfort. The clothing should take up themoisture from the skin as well as transmit it to theatmosphere. Higher hydrophil…
Article Synthesis and Characterization of Mechanically Alloyed Al/AlxMg1-xB2 Composites was published on December 1, 2009 in the journal Science and Engineering of Composite Materials (volume 16, issue 4).
The fissility and durability of representative samples of commercial roofing slates from ten deposits in the NW of Spain have been evaluated using transmitted and reflectedlight optical microscopy, scanning electron microscopy, chemical testing and geomechanical procedures. The dominant sulphides in the different slat…
Article Tribological Comparative Study of the Effect of Boride and Silicon Particles on Aluminum Matrix Composite was published on December 1, 2009 in the journal Science and Engineering of Composite Materials (volume 16, issue 4).
Geothermal waste, a by-product of steam power plants that use geothermal underground resources, was studied as a possible replacement for Portland cement. This waste consists primarily in amorphous nanometric silica with traces of sodium and potassium chlorides. The replacement ratios studied were 0, 10 and 20% in cem…
Water takes part in most if not all of the degradation processes experienced by cement-based materials during their service-life. The effect of pure water usually is not of primary concern as it involves very lengthy degradation diffusion controlled processes; aqueous solutions are more aggressive, promoting increased…
This study attempted to determine the viability of using incinerated agro-industrial waste, ashes C1 and C2, as possible artificial pozzolanic additions in traditional and highperformance concretes and mortars, mainly, and for this reason, a comparative study was likewise conducted with Spanish silica fume (HS). The c…
The rheological behavior of emulsions has been extensively investigated through experiments made at atmospheric pressure. This study presents a new experimental characterization of these fluids with measurements performed under pressure and in a large range of temperature. The results show that viscosities obey Barus…
The cathedral of Vila Real (North of Portugal) is located in the city centre and at least four regional two-mica granites were used in its construction. A petrographic study of these granites concluded that the stones had different degrees of alterations. The identification of some physical properties of the granites…
Article Tension-Tension Fatigue Behavior of Natched NextelTM 720/Alumina (N720A) at Elevated Temperature was published on December 1, 2009 in the journal Science and Engineering of Composite Materials (volume 16, issue 4).
In this paper the launching of liquid polymer jetsfrom the apex of gas bubbles on thepolyvinylpyrrolidone in ethanol (PVP) solutionsurface due to an applied electrical potential isinvestigated. Jets of polymer launched from bubbleprovide an alternative method for electrospinningpolymer nanofibers that may be scalable…
The Cotton Quality Research Station (CQRS) of theUSDA-ARS, recently completed a comprehensivestudy of the relationship of cotton fiber properties tothe quality of spun yarn. The five year study, beganin 2001, utilized commercial variety cotton grown,harvested and ginned in each of three major growingregions in the US…
The rheological behavior of ceramic oxide hydroxide alumina pastes with high solid loading is investigated. In order to enable an adequate and experimentally rheological characterization, the measurements are carried out with a Rheostress viscometer under isothermal conditions. Various compositions of a commercial AlO…
The viscoelastic performance indicators of a commercial roofing membrane and an ecological bituminous membrane, which contains EVA copolymer from disused greenhouses and filler from landfill, are investigated. Rheological methods reveal as a useful tool to investigate basic and technical aspects of these materials. It…