Materials Literature
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An ordered B2 intermetallic compound with composition Ti 45 Zr 38 Al 17 was prepared by copper mold casting. The density of the alloy is 5.078 g/cm 3 , whereas the Poisson's ratio and the Young's modulus are 0.38 and 70 GPa, respectively. Room temperature compression tests show good mechanical properties, namely, a hi…
This paper has proven that the application of low – viscosity (low – temperature) bitumen in asphalt concrete results in an improvement in its mechanical properties (Marshall stability and deformation, static creep modulus and indirect tensile strength) in comparison to traditional bitumen. The tests conducted with th…
In addition to passive solar wind collector surfaces, the Genesis Discovery Mission science canister had on board an electrostatic concave mirror for concentrating the solar wind ions, known as the concentrator . The 30-mm-radius collector focal point (the target) was comprised of 4 quadrants: two of single crystal Si…
Investigation of paint thermal control coatings (TCCs) with new components that are intended for spacecraft operating at high‐altitude orbits (GEO, HEO) has been carried out. Changes of optical properties under combined exposure to space environment have been measured.
La connaissance des proprietes des terres cultivees permet un meilleur choix du mode de gestion a adopter. Trois sols acides de haute altitude (HA), moyenne altitude (MA) et basse altitude (BA) au Rwanda ont ete echantillonnes respectivement dans les stations de Gakuta, Tonga et Cyabayaga, pour une caracterisation phy…
Objective:To search for the optimum formula for self-emulsifying preparation of Brucea javanica seed oil.Methods:Taking the emulsifying degree,quantity of non-emulsifying oil,and emulsion particle size as parameters,we screened for the optimum proportions of the oil,lipids,and non-ionic surfactant in the recipe formul…
A new measurement program was set up at SCK⋅CEN to determine the thermal neutron‐induced fission cross section of a number of Cm isotopes. These transuranium isotopes are produced in nuclear reactors and are candidates for transmutation. This paper presents preliminary results of our 245Cm(n,f) cross‐section measureme…
在亚微米的冷绘画并且随后的退火以后的微观结构和性质水晶的 Cu-5%Cr (集体部分) 合金被调查。结果显示出那，亚微米的微观结构水晶的 Cu-5%Cr 能被冷绘画进一步精制。在冷绘画以后，有谷物的 Cu-5%Cr 合金的谷物 400500 nm 缩放能被精制与 100200 nm 的尺寸是细胞的结构和 subgrains。Cu-5%Cr 合金的力量和韧性能被冷绘画提高，并且最佳的机械性质能与拉变丑增加被完成。脱臼滑行，这被建议仍然是在亚微米的塑料变丑的主要机制水晶的 Cu-5%Cr，而是谷物边界幻灯片和散开可以与拉变丑增加起越来越重要的作用。冷拉的 Cu-5%Cr 电线什么时候在 550 点被退火 ? 挠慯楴杮? 甠摮牥琠敨琠獥…
In case of wood flooring, the high emissivity would be one of the most important properties especially as the cover material of underfloor heating system. The FIR (Far Infrared) materials such as wood emit FIR energy by heating, which has been used as the medical therapy such as dry sauna. This research investigated t…
The purpose of this study was to determine the feasibility of using biodegradable films suitable for fresh-cut lettuce with commercial vertical-form-fill-and-seal packaging machines (VVFS) equipped with heat-sealing bars. Biodegradable high-density polyethylene (BHDPE) and polypropylene (BPP) films were tested. Commer…
Nanoparticle assemblies are of current interest as they are used in a wide variety of industrial and biomedical applications. This work presents two studies aimed at understanding the magnetization dynamics and interparticle interactions in nanoparticle assemblies and various types of ferrofluids. First, we studied th…
The most important indicator of the health of electrical plant items is the condition of their insulation. In the case of underground cables an important issue is the operating temperature and indeed the thermal history of the cable. There are several factors which will determine the thermal behaviour of a given cable…
We have suggested that a small momentum spread of photoelectrons and high quantum efficiency can be obtained concurrently by a photocathode using a semiconductor with a superlattice instead of a bulk. We have begun to search for the suitable semiconductor material of a superlattice photocathode for maintaining the sur…
The paper presents the results of research relating to the registration of crystallization process of lightweight magnesium alloys based of ATND method. Investigated magnesium alloys containing about 8% Li have been produced in the Foundry Research Institute. Melting and crystallization curves for two selected alloys…
Based on the principle that molecular sieve ZSM-5 can be highly hydrophobic by using a high Si/Al2 ratio, a silica rich H-ZSM-5 was used as the NO oxidation catalyst and its catalytic activity under various reaction conditions was investigated: relative humidity from 0 to 100%, reaction temperature from 10 to 90℃, and…
The thermoplastic polyurethane waste (TPU-S) with good tensile properties, hardness, NBS abrasion resistance, specific gravity and low wet coefficient of kinetic friction was melt-blended with ethylene propylene diene monomer rubber (EPDM) with high wet slip resistance and low mechanical properties to form EPDM/TPU-S…
Baja St 60 adalah baja karbon sedang yang banyak dipergunakan untuk peralatan mesin, roda gigi dan untuk konstruksi umum karena mempunyai sifat mampu las dan kepekaan terhadap retak las. Penelitian ini bertujuan untuk mengetahui pengaruh heat input terhadap ketangguhan impact las SMAW vertikal naik baja St 60 temper.…
We study the degradation/enhancement of the response of a solid, through which a fluid is diffusing, whose material moduli depend on the concentration of the diffusant. A simplified model is used that couples the balance of linear momentum for the solid to a convection-reaction-diffusion equation for the fluid. At a f…
A new metal-organic complex formulated as [Co(ISOIN) 2 (H 2 O) 4 ] 1 (H 2 ISOIN) = isonicotinic acid) has been synthesized by low-temperature solid-state reaction and characterized by single-crystal X-ray diffraction, elemental analyses, IR and UV-visible spectra. The strong intermolecular O-H. . .O hydrogen-bonds int…
In this study, a spark ignition engine operated with LPG and DME blended fuel was studied experimentally. The effect of n-butane and propane on performance and emissions of a SI engine fuelled by LPG/DME blended fuel were examined. Stable engine operation was achieved for a wide range of engine loads with propane cont…