Materials Literature
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The need in energy has resulted in the burning of fossil fuels at an increasingly high level.The consequence is a release of high volumes of carbon dioxide gas (CO 2 ) in the atmosphere.This gas is a major greenhouse gas which causes global warming.There is therefore a great need to efficiently sequestrate this gas (C…
FTMP-based realizations of ductile fracture modes in single crystal and polycrystals models are presented. The fracture modes in the current context stem from destabilized dislocation substructure spontaneously evolved in the deformationinduced manner, strongly depending on the crystallographic orientations and their…
Metal borohydrides have been extensively investigated over the last few years as potential hydrogen storage materials for mobile applications, due to their high gravimetric and volumetric hydrogen content, e.g. 18.5 wt% hydrogen in LiBH4.[1] Unfortunately the lightweight alkali metal borohydrides have challenges due t…
Recent additive manufacturing technologies can be used to fabricate porous metals with precise internal pore structures and effective performance. We use topology optimization to derive an optimal microstructure shape with high stiffness that is verified experimentally. The design maximizes the effective bulk modulus…
A steady free surface flow problem is often encountered in marine applications, for example to predict ship wave-resistance or to study ship-to-shore interaction in straight narrow channels.These cases can be simulated using either surface fitting or surface capturing methods.The former make use of a deforming mesh wh…
ДИНАМИЧЕСКАЯ ЗАДАЧА ТЕРМОЭЛЕКТРОУПРУГОСТИДЛЯ ФУНКЦИОНАЛЬНО-ГРАДИЕНТНОГО СЛОЯ А.О.Ватульян 1,2 , С.А.Нестеров 21 Южный федеральный университет, Ростов-на-Дону, Российская Федерация 2 Южный математический институт ВНЦ РАН, Владикавказ, Российская Федерация Приведена общая постановка задачи движения неоднородного термоэл…
Crankshafts fail from fatigue in locations of the greatest stress concentration. Such areas are the openings of lubricant holes on crankpin and main journals of the shaft and the fillets between webs and journals. Factors of safety in these locations are minimal. When analyzing crankshafts, the main journals are analy…
Multimodal imaging probes can provide diagnostic information combining different imaging modalities. Nanoparticles (NPs) can contain two or more imaging tracers that allow several diagnostic techniques to be used simultaneously. In this thesis, a complex coacervation process to produce core-shell completely biocompati…
In solidification of metal and alloy, an equiaxed structure is formed through the growth, motion and collision of multiple dendrites. In this study, we construct a model expressing the formation process of equiaxed structure by coupling multi-phase-field equation, lattice Boltzmann equation and equation of motion. Fur…
Cet article présente la mise en oeuvre d’une nouvelle formation pratique pour la réalisation et la caractérisation électrique de cellules mémoires basées sur la commutation réversible entre deux états de résistance distincts dans le matériau diélectrique d’une structure MIM. L’enchaînement des étapes technologiques s’…
Deformation behavior of ceramic thin film was studied due to drying-induced shrinkage. Hot air drying examination was carried out for a piece of kaolin thin film in the two patterns; both the faces of the sample piece were subjected to heating (both side heating and drying) and drying and only the top face was subject…
Hingga saat ini kebutuhan besi tuang putih ASTM A 532 untuk grinding ball pada industri semen masih dipenuhi dengan impor. Percobaan pembuatan paduan ini sudah dilakukan pada skala IKM. Akan tetapi satu kekurangan paduan yang dihasilkan bersifat getas sehingga nilai ketangguhan relatif rendah. Penelitian ini bertujuan…
The present thesis has focused on the development and study of biodegradable polymeric biocomposites obtained from natural resources for food packaging industry.Two types of biopolymer matrix i.e. poly (3hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) and potato starch and two types of filler i.e. cellulose nanocrystals…
The brake hose made of austenitic stainless steel SUS 304 has several excellent characteristics such as a linear operation feeling during brake, light weight, impact resistance, etc. as compared with conventional rubber brake hose. In this study, we clarify the influence of the change in physical properties due to the…
Geothermal brine is considered to be an aggressive environment as it contains various dissolved salts. Even though carbon steel is commonly used as a construction material due to its machinability and economical reason, it is susceptible to uniform and localized corrosion in a high temperature and high pressure system…
Rapid change in climate and depletion of resources require the development of advanced and more efficient renewable energy devices. Since solar light is a promising abundant resource, the development of an efficient photovoltaic cell is attractive. Since the conventional solar cells consist of a semiconductor material…
As a purpose of developing liquid crystalline micro-actuators, we have investigated the effects of material properties of liquid crystal, such as dielectric anisotropies, viscosities and elasticities, on the driving performance of micro-actuators. Experiments of the LC actuators with seven LC materials with different…
Recently, the demand for aluminum alloy made of a wide variety of materials is increasing, especially its small lot production. Although Properzi continuous casting and rolling process is a widely used and highly efficient process to produce aluminum alloy rods, it is suitable for mass production. In this study, we tr…
The paper deals with the quantitative description of microclimate in the inner volume of shoes.Unsuitable microclimate conditions may damage foot skin.Isothermal quantitative model of shoe microclimate based on mass balance is presented.Model takes into account moisture produced by foot skin, accumulation of moisture…
The automation stand on the basis of the programmed logic controller is developed for management by temperature profiles of assembly soldering.