Materials Literature
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Die Metallisierung von Keramiken mittels Kaltgasspritzens stand im Fokus zahlreicher Veröffentlichungen der jüngeren Vergangenheit. Die Haftmechanismen metallischer Schichten auf nicht-duktilen Substraten sind jedoch noch nicht vollkommen verstanden. Frühere Untersuchungen von Titan-Schichten auf Aluminiumoxid ergaben…
Abstract This contribution deals with the issue of electron beam welding of high-accurate gear wheels composed of a spur gearing and fluted shaft joined with a face weld for automotive industry. Both parts made of the high-strength low-alloy steel are welded in the condition after final machining and heat treatment, p…
Penumbuhan lapisan tipis BaZr0,15Ti0,85O3 telah dilakukan menggunakan metode sol gel di atas substrat Pt/Si yang disiapkan dengan spin coater. Penumbuhan lapisan tipis menggunakan variasi suhu annealing 8000C dan 9000C, dan variasi waktu tahan (holding time) 3 jam dan 4 jam dengan kecepatan putar 4000 rpm. Hasil karak…
The present work was carried out to evaluate the CO2 corrosion resistance of carbon steels used for tubing in oil and gas industries. Two low alloy steels containing 3% Cr, identified as 3CrA and 3CrB, were studied by electrochemical techniques (Chronopotentiometry, Voltamperometry, Electrochemical Impedance Spectrosc…
The main purpose of investigations is the qualification how post-accident repair of model car body parts influence on the value of coefficient of restitution. Evaluation of impact energy absorption by model car body parts repaired with MIG welding (with and without micro-jet cooling) was carried out. The results of in…
A Ni-based catalyst supported by γ-Al2O3 was prepared by impregnation method, and the catalyst was used in a low CO and CO2 concentration methanation system. The effect of temperature, pressure and space velocity on the methanation reaction was investigated in an experimental fixed-bed reactor. The methanation reactio…
Ceramic materials due to their high compressive strength and hardness have been one of prime candidates in armor design in particular when high level threads (impact velocity above 600m/s) are involved. The aim of this work is to investigate ballistic impact resistance potential for a target plate with novel ceramic i…
This report documents a test program run at Southwest Research Institute (SwRI) for the Coordinating Research Council (CRC). The program objective was to generate data with the EPAct Fleet vehicles used in the EPAct/V2/E-89 program with three fuels over the LA-92 test cycle. One of the fuels was a re-blend of Fuel 13…
Pada industri pangan, penggunaan gelatin merupakan salah satu polimer larut air yang dapat digunakan sebagai agen pembentuk gel, pengental, penstabil, pembuih, dan pengemulsi. Produksi gelatin dapat diperoleh dari kulit, tulang, dan jaringan ikat hewan mamalia. Gelatin yang saat ini dikembangkan sebagai gelatin altern…
Plastics Engineering is the official publication of the Society of Plastics Engineers (SPE). We provide plastics professionals with a wealth of information about machinery, technological advances, materials innovations, sustainability, and more.
Preparation of superposed thin film (CdTe)1-xSex / ZnS) with concentration of (x= 0.1, 0.3, 0.5) at a temperature of substrate (Ts= 80 0C) by using Thermal Vacuum Evaporation System. The measurement of X-ray diffraction shows that the compounds CdTe, ZnS, (CdTe)1-xSex and (CdTe)1-xSex / ZnS have a polycrystalline stru…
International audience
Three mesoporous silica with different functional group were prepared by one-step synthesis based on the simultaneous hydrolysis and condensation of sodium silicate with organo - silane in the presence of template surfactant polydimethylsiloxane - polyethyleneoxide (PDMS - PEO). The prepared materials were characteriz…
The buckling analysis of annular composite plates reinforced by carbon nanotubes subjected to compressive and torsional loads are studied in this paper. The Mori-Tanaka method is employed to calculate the effective elastic modulus of composites having aligned oriented straight CNTs. The effects of CNTs volume fraction…
The possibility of using the spray drying method for the construction of poly-3-hydroxybutyrate (P3HB) based microparticles was studied. The dependence of characteristics of microparticles (yield, average diameter, zeta-potential) from processing parameters (temperature at the inlet of the system, the feed rate of pol…
In this study, the criteria of an optimal formation of the most convenient load-bearing structure for the case of simple tension and bending are considered. As the criteria quantities, the following are accepted: the minimum value of the potential energy of deformation and a possibly equal relative volumetric value of…
Consumer points of view determine economical value of fabrics. Fabric luster plays a momentous role in attracting people's attention, especially for clothing and domestic purposes. Luster is defined by intensity of both specular and diffuse light reflection off of a surface. There are various methods for measuring sur…
CNT dispersion in polymer matrices uniformly remains a challenge. Uniform dispersion of carbon nanotube (CNT) within ultra-high molecular polyethylene (UHMWPE) solution is the first step to achieve CNT/UHMWPE fibers with excellent properties. Several approaches have been tried. Composite powder was acquired by coating…
International audience
Hybridisation is one of the approaches to introduce pseudo-ductility to brittle composite materials. In this approach, two layers with different types of fibre are combined and a new stress-strain response which depends on the material properties of the components and thickness of the constituents is produced. In this…