Materials Literature
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E. I. IONETE S. M. IORDACHE, A.-M. IORDACHE, R. E. IONETE, A. SALCEANU,C. NICHITA, B. DOBRICA, I. STAMATIN National R&D Institute for Cryogenics and Isotopic Technologies – ICIT Rm.Valcea,4 Uzinei Str.RM Valcea, 240050, Valcea Romania University of Bucharest. Faculty of Physics,3Nano-SAE Research Center, P.O. Box MG-3…
In this study, silver nanoparticles were synthesized by using of camomile plant extract as a reducing agent for AgNO3. The effects of different solvents including water, ethanol, normal hexane and dimethylsulphoxide (DMSO) on the extraction were investigated and the role of anionic (SDS), cationic (CTAB) as well as no…
Investigating the dendritic competitive growth mechanism is of great importance for directional solidification, and the numerical simulation technique is regarded as an effective approach to a description of microstructural evolution. Therefore, a modified cellular automaton model with decentered square algorithm is d…
Molybdenum disulphide (MoS2), a layered quasi-two dimensional (2D) chalcogenide material, is a subject of intense research because of its electronic, optical, mechanical and physicochemical properties. Since the monolayer MoS2 is a direct-gap seminconductor, it is widely used in the field of light-emitting area. Howev…
補修・補強工事において，既設部材側にブラスト処理が困難な場合を想定して，2種ケレンによる鋼材粗面と無機ジンクリッチペイント面の組合せを対象に，高力ボルト摩擦接合継手供試体を用いてすべり耐力試験を実施し，無機ジンク膜厚と2種ケレン面の表面粗さがすべり係数に与える影響を明らかにした．その結果，すべり係数は無機ジンク膜厚より表面粗さに強い相関があることが見られた．また，連結板に塗布した無機ジンク膜厚以上の表面粗さを有してもすべり係数に改善は見られず，すべり係数は頭打ちすることが分かった．試験結果を踏まえ，連結板の無機ジンク膜厚を50μm以上150μm以下確保した上で，鋼材粗面の表面粗さが算術平均粗さRa≧5μmの場合のすべり係数は0.4…
Empty fruit bunches and wastepaper together with urea formaldehyde (UF) were evaluated to figure out potential applications in engineering field. The purpose of this project is to determine the mechanical properties of a new high density board. This composite was manufactured by hot-press technique with 3 different ra…
Indium (In) doped CdS thin films has been prepared by co-sputtering of CdS and In target on glass substrates at 300 °C for a window layer of solar cells. UV-Vis, and Hall Effect measurements were performed to characterize the growth and doping impact of In in the CdS thin films. The experimental results show that the…
Both the ultrafine-grained (UFG) structure with a grain size (d) less than 1 mm and nanocrystalline (NC) structure (d £ 100 нм) can be processed in nickel-based alloy 58Ni-Cr-Mo-B-Al-Cu using methods severe plastic deformation, in particular, multistep isothermal forging within the temperature range of g+δ - region on…
Effects of equal-channel angular pressing (ECAP) at 325°C to a strain, e~10 and post-ECAP annealing for 1 hr in the temperature range of 350-520 oC on structure of the cast and homogenized Al-Mg-Sc-Zr alloy 01570C were analyzed. It is found that annealing of ECAP processed material containing near homogeneous ultrafin…
Numerical simulation plays an irreplaceable role in reducing time and cost for the development of aerospace and automotive structures, such as composite fan cases, car roof and body panels etc.However, a practical and computationally-efficient methodology for predicting the performance of large braided composite struc…
Copyright © 2014 V. Ponnarasan and A. Krishnan. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Pure and Ni2+ doped Copper oxide (CuO) nanoparticles wer…
Effect of alkali strength on the fiber surface treatment and fiber weight fraction variations on the electrical properties of the composite palm sugar fiber-epoxy become the focus in this study. The results showed that the stronger the base or alkaline pH, then the value of the resistivity of the composites increased…
Microencapsulation is the procedure by which biologically active material is enclosed within micro spherical, semi permeable containers of a diameter between 0.2 to 3 mm. The microcapsules are usually produced by two-step procedure, in the first step the cells are immobilized within hydro gel micro beads and then the…
Due to their unique properties, ordered mesoporous carbon (OMC) materials prepared by nanocasting have raised great attention in recent years. Their synthesis usually comprises multiple cycles of impregnating a porous structure matrix with an aqueous solution of a suitable precursor, such as sucrose or other, often ha…
Okra bast fiber (OBF) reinforced thermoset phenol formaldehyde (PF) resin composites were prepared by compression molding methods. In order to found better wetting of filler and matrix, OBF was treated with NaOH. The properties of composites were studied by mechanical tests, thermal methods and water uptake. The mecha…
This paper presents the effects of three different types of layered silicates, namely bentonite (Btn), Montmorillonite K10 (K10) and Nanomer I.30P (I.30P), on the performance of some new hybrid materials based on a commercial polypropylene. The study evaluated the dependence of mechanical properties on the clay nature…
Because of their excellent properties,titanium and its alloys have been widely used in aviation,aerospace,shipbuilding,chemical industries,and so on. In order to meet the different requirement,new titanium alloy research was very active in China in recent 20 years. Among them,titanium alloy used for shipbuilding is on…
In order to research the influence of fog-haze conditions on the flashover performance of insulators, we utilized an ultrasonic fog generator to produce water sprays pervading the small fog-haze chamber designed by ourselves. Meanwhile, different components of fog-haze including diatomite, calcium sulfate(Ca SO4), and…
With the development of marine oil and gas exploration,more and more attention has been given to marine corrosive environment during the last decades.Marine corrosion environments are generally divided into atmospheric,splash,tidal,immersion,and mud zones.The protection to splash zone corrosion must be conducted with…
In advanced countries, researches related to the machinability & microstructures of gray cast iron were carried out early, especially on the effect of inoculants. Also there has been an increasing need and demand for the processes to obtain carbide free, thin section grey iron castings. Inoculation is a well establish…