Materials Literature
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During the recent years, several promising finite element solutions have been presented for finding the response of structures subjected to blast loading. This thesis gives as a comparative study on 3 major solution strategies, and their implication on the response on constrained plates of varying standoff distances.…
An inevitable consequence of the increasingly larger buildings that we see around us is the demand for lighter construction components. Since floor slabs constitute the main part of the overall weight of multistory buildings, reducing their weight is a key step in reducing the overall weight of the construction. Usual…
The purpose of the work presented in this thesis has been to investigate thermal transport in pure polystyrene as well as in a mixture of polystyrene and carbon dioxide. Another part of the work has been to calculate the anisotropy of the thermal conductivity in stretched polystyrene. To finally tie everything togethe…
Diamond is a semiconductor with many superior material properties such as high breakdown field, high saturation velocity, high carrier mobilities and the highest thermal conductivity of all materials. These extreme properties, as compared to other (wide bandgap) semiconductors, make it desirable to develop single-crys…
Large amounts of hydrogen are produced worldwide, which are nearly all from fossil origin. Use of biomass instead of fossil fuels to produce hydrogen can contribute to a reduction of greenhouse gas emissions. Therefore, the hydrogen has to be produced at high yield and efficiency. A Microbial Electrolysis Cell is a ne…
In order to better understand work hardening behavior of pure magnesium, latent hardening experiments with magnesium single crystals were carried out. Large magnesium single crystal samples were first deformed in tension, and subsequently sectioned for secondary tension tests. Three different initial crystallographic…
Soft material characterization in the dynamic regime is needed for constitutive models to support numerical simulations for shock mitigation and characterization, blasts effects due to explosions, and vibration isolation. However, both the experimental techniques and dynamic properties of soft materials are scarce. A…
Au based catalysts have been extensively studied since Masatake Haruta in Japan discovered that small Au nanoparticles supported on transition metal oxides are exceptionally active catalysts for oxidation reactions at low temperature. However, what makes gold, being inert in the bulk form, active is still a big questi…
The purpose of this project was to produce a “greener” cement from granulated ground blast furnace slag (GGBS) using non-Portland cement activation. By eventually developing “greener” cement, the ultimate goal of this research project would be to reduce the amount of Portland cement used in concrete, therefore reducin…
Bovine hair, resulting from the unhairing of hides and skins, forms a major component of tannery solid wastes that is often disposed to landfill. However, following increasing environmental legislation restricting the disposal of commercial and industrial organic wastes to landfill, alternative treatment of tannery so…
Magnesia- carbon (MgO-C) refractory bricks have been used in the slag line of ladles due to its superior slag penetration resistance and excellent thermal shock resistance at high temperatures. However, the life of this bricks has become limited on prolonged use due to its poor oxidation resistance as well as low stre…
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 2010.
This thesis investigates bacterial motility from the mechanism permitting individual selfpropulsion to the complex collective flocking motility in Escherichia coli and Bacillus subtilis cells. Understanding bacterial swimming has intrigued scientists for decades and recently there has been a growing interest in collec…
Significant opportunities exist in both the scientific and industrial sectors for the development of novel multi-functional materials that combine the inherent properties of all precursor components in a synergistic manner, thereby providing new products and opportunities. Processes that add value to natural materials…
W artykule przedstawiono charakterystykę ortofosforanów wapnia ważnych ze względu na możliwości zastosowania w medycynie i stomatologii. Omówiono charakterystykę fizykochemiczną dwóch najistotniejszych fosforanów wapnia - hydroksyapatytu i fosforanu (V) wapnia -TCP.
Current industry standards for evaluating wind turbine power performance require erecting a meteorological mast on site to obtain reference measurements of hub-height wind speed. New considerations for small wind turbines (SWTs) offer the alternative of using an anemometer extending from a lower elevation on the turbi…
Nonwoven materials are engineered fabrics, produced by bonding constituent fibres together by mechanical, thermal or chemical means. Such a technology has a great potential to produce material for specific purposes. It is therefore crucial to develop right products with requested properties. This requires a good under…
Increasing efforts are being made to promote the use of sustainable construction materials such as timber. The bonding of glass fibre reinforced polymer (GFRP) plate to low-grade timber possesses considerable potential for enhancement of its flexural properties and can be easily and effectively integrated into the glu…
The present work was carried out in the frame of a scientific cooperation between the Department of Materials Engineering and Industrial Technologies of Trento University and MIMEST spa (Pergine Valsugana, Trento). The cooperation was established to develop the applications of MIM products in the biomedical fields, wi…
Solid particle erosion of polymer composites is a complex surface damage process, strongly affected by material properties and operational conditions. The present research work is undertaken to study the development, characterization and erosion wear performance of bamboo fiber reinforced epoxy composites with and wit…