Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
Mixtures of AA2124 aluminum alloy powder and SiC particles at volume fractions of 10 vol.% and 20 vol.% were milled in a high energy planetary ball mill under an argon atmosphere, for times of 2.5h to 60 h, aiming to produce Al alloy-SiC nanocomposites. Optical microscopy (MO) and scanning electron microscopy (SEM) we…
Lanthanum Chromite may used as interconnect for SOFC’s applications due its particular intrinsic properties as stability in both oxidant and reducing environments and electrical conductivity. However to manufacture these devices that generally present complex shapes as grooved plates and fine pipes, they are necessary…
NiO thin films containing up to 60 mol % Li were deposited on an ultra smooth sapphire (0001) substrate at room-temperature (RT) by the pulsed laser deposition (PLD) process. From in situ reflection high-energy electron diffraction (RHEED) and ex situ X-ray diffraction (XRD), it was found that the cubic NiO thin film…
The use of different synthetic rubbers in ship vibration and noise protection means is reviewed. Comparison of mechanical, acoustic, resource, and service life characteristics of these materials is presented.
The lespedeza stalks with steam pretreatment were fermented to lactic acid by simultaneous saccharification and fermentation (SSF) in this study. Orthogonal design methodology was used to evaluate the optimum SSF conditions that give maximum lactic acid yield. We have investigated the following relative factors, such…
O Al em complexos com matéria orgânica do solo é comumente determinado por técnicas de dissolução seletiva. Um extrator comum para essa forma do elemento é o pirofosfato de sódio. Devido à sua falta de seletividade para algumas amostras de solos, extratores não tamponados de Al, como CuCl2 e LaCl3, têm sido recomendad…
Nanofibres are useful in many areas due to their outstanding characteristics: small size and high surface-to-volume ratio. Recently, drug delivery systems using polymer nanofibres have gained significant attention. For these systems, a chopped nanofibre is required because the amount of drug released depends on the le…
Some dynamic compressive tests about Ultra-High Molecular Weight Polyethylene Fiber-reinforced laminated Composites have been done using SHPB experimental system．The stress-strain curves of UHMWPE Fiber-reinforced Composites of three different laminated angles (0/90°, 0/90/45/-45°, 0/90/30/-60/60/-30°) are obtained at…
Electroless nickel and immersion gold (ENIG) is one of the most common final finishes used in PCBs. ENIG surfaces exhibit excellent planarity, solderability and wire bondability and tolerate multiple lead free solder reflows during assembly processing. However, the price of gold has increased rapidly from around $400…
This paper presents a novel fault location algorithm, which in spite of using only voltage samples taken from one terminal, is capable to calculate precise fault location in aged power cables without any need to line parameters. Voltage transients generated after circuit breaker opening action are sampled and using wa…
Electroless Ni-P and Ni-P-Al2O3 composite coatings on low carbon steel (Q235) sheets were prepared by adopting optimum plating process. The cross-section morphology and structure as well as the phase transformation of the composite coatings were studied by scanning electron microscopy(SEM), X-ray diffraction(XRD). It…
Radical frequency (RF) measurement has become hot point in field of partial discharge detection. However, a big problem that hampers the application of this method is difficult to establish a relationship between data from RF measurement and apparent discharge quantity, that is, use RF signal to estimate the apparent…
Electrosurface characteristics of tungsten oxide in solutions of 1: 1 electrolytes are studied in a wide range of concentration and pH values. The dependence of the position of isoelectric point on the concentration of background electrolyte and the cation nature is revealed. The equilibrium constants of surface react…
The hot compression behavior of ZK60 magnesium alloy was investigated at the temperatures from 523 to 673K and strain rates from 0.001 to 1s-1 on Gleeble-1500 thermal simulator. The results show that flow stress of ZK60 magnesium alloy decreases with the increase of deformation temperature and the decrease of strain r…
Zinc sulfide thin films were deposited on optical glass substrates by using chemical bath deposition (CBD) technique that contain solutions of thiourea, zinc acetate, ammonia and sodium citrate. The deposition time were varied from 18 hours to 39 hours. SEM, XRD, and UV-Vis-NIR were used to characterize the sample whi…
The method of liquid crystal (LC) helix pitch determination from the critical voltage of transition from a homeotropic orientation to a translation-invariant structure in a nematocholesteric LC mixture is considered. It is shown that, in the case of nonrigid homeotropic boundary conditions under which there is azimuth…
Shape memory alloy (SMA) can be embedded into a host material to achieve shape control, damage repair and self-adaption. It is well recognized that the applications of SMA composites are highly dependent on the integrity of SMA fiber-matrix interface. However, the interfacial debonding often occurs due to the weak bon…
Fiber reinforced composites have been an important way to utilize agriculture plant fibers. Flax fiber is plant fiber and strong, biodegradable, anti-fungi and bacterial. Flax fiber reinforced PP fiberboard is thermoplastic with the advantages of low density, low cost, low energy consumption, and recyclable. The influ…
There has been significant progress in recent years aimed at pushing the spatial resolution limits of scanning electron microscopes. Many of these endeavours have been driven by advances in the field of nanotechnology and the need to investigate the morphological features of sub-micron size materials. While scanning e…
In the paper, control principle and working characters of T－WRS&C（Taper Work Roll Shifting and Crossing）cold rolling mill are analyzed. The working schedule and control parameters are worked out. The mill working modes are determined according to different working conditions. The taper work roll shifting is used for e…