Materials Literature
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Metastable austenitic and duplex stainless steels are widely used materials in industrial anddomestic applications, owing to their attractive characteristics such as good corrosion resistanceand favorable mechanical properties. Both types of steel experience enhanced mechanicalproperties during plastic deformation due…
One of the more interesting aspects of vibrations and liquids is its wettability; it is related to surface energies comprising solid-vapor, solid-liquid and liquid-vapor interfaces. Many industry and technology applications, such as print, paint, inject, lubrication, surface engineering, etc., have a great interest to…
This work studies the chemical composition, physical make-up, and aging mechanisms of thermally-exposed and gamma-irradiated, commercial, cross-linked, polyethylene (XLPE) cable insulation material used in Nuclear Power Plants (NPPs), using various analytical characterization techniques. Understanding of cable aging b…
Organometal halide perovskite absorbers such as methylammonium lead iodide chloride (CH3NH3PbI3-xClx), have emerged as an exciting new material family for photovoltaics due to its appealing features that include suitable direct bandgap with intense light absorbance, band gap tunability, ultra-fast charge carrier gener…
Porosity can have a significant effect on the overall constitutive behavior of many materials, especially when it serves to relax kinematic constraints imposed by the underlying matrix behavior. In this study, we investigate the multiscale, finite-strain response of viscoplastic porous single crystals and porous polyc…
Chicken feathers are an abundant by-product from poultry industry. Feathers are composed of around 90% keratin, a valuable protein bioresource that have great potential for non-food applications. Keratin is characterized by a high content of cysteine residues forming disulfide bonds. This feature makes keratin an inte…
The size of electronic devices is continually decreasing while the power consumption by these devices is increasing. As such the microchips in these devices dissipate more heat. Therefore, thermal management has become a challenging factor for designing electronic devices. With smaller electronic devices, the conventi…
Geomagnetic disturbances brought about by solar activity cause geo-electric fields in the Earth that drive geomagnetically induced currents through the earthed neutrals of transformers and through power transmission networks. The flow of these currents causes the magnetic cores of transformers to half-wave saturate. S…
The oilseed industry generates a great deal of meal after oil extraction. Soy meal has a number of value added applications while canola meal is used mainly as a low-value animal feed. There is a growing interest on value addition of meal beyond feed uses. Canola and soy meal contain ~ 33-37% and 43-47% (w/w on DM bas…
Capacitive micromachined ultrasound transducers (CMUTs) are a promising replacement technology for piezoelectric composite transducers, as they offer a more flexible architecture, wider signal bandwidth, and improved impedance matching between the sensor and the sensing medium. While CMUTs have demonstrated these adva…
In this study different cavitation regimes in a venturi have been investigated, in order to validate and develop numerical two-phase flow models further with the data obtained.The different cavitation regimes are generated by systematically changing the global static pressure and flow velocity in the flow loop.Cavitat…
Much of the transportation and handling of molten sulfur requires liquid sulfur pumps which are challenging to operate due to the anomalous behaviour of sulfur’s viscosity around its λ-transition region. Sulfur’s viscosity increases from ≈ 10 cP upon melting at T = 115 °C to ≥ 90 000 cP at T = 187 °C. While the temper…
The development of alternative binder systems for tungsten carbide (WC) based cemented carbides has again become of relevance due to possible changes in EU regulations regarding the use of Cobalt (Co). A framework for the ICME (Integrated Computational Materials Engineering) based Materials Design is presented to acce…
© 2017 Maryam Shahnia
Calcium-silicate-hydrate(C-S-H) gel is a primary nano-crystalline phase present in hydrated Ordinary Portland Cement (OPC) responsible for its strength and creep behavior. Our reliance on cement for infrastructure is global, and there is a need to improve infrastructure life-times. A way forward is to engineer the cem…
Lake Geneva long-term changes of phytoplankton biomass and environmental parameters revealed a silicate influence between1980-1989, a transition phase between 1989-1995/99, a mild phosphorus influence between 1995/99-2007 and a period of strong phosphorus influence between 2007-2012. Moreover, shifts in the phytoplank…
Titanium alloys are used extensively in orthopaedic implants because of their high strength to weight ratio, resistance to corrosion, and biocompatibility, but the poor wear resistance of Ti-based implants and the stress at the articulating surfaces releases wear debris and metal ions. As the average life expectancy o…
Structural Health Monitoring is an important aspect in civil engineering, dedicated to monitor and maintain the structural conditions of civil architecture objects. It results in extension of their life time and appropriateness for human use. \nPresent, commercially available sensors for SHM are complex, sophisticated…
In 2016 zijn nabij het spuisluis en schutsluiscomplex bij Den Oever visvriendelijke migratiemaatregelen geïmplementeerd. De maatregelen hebben als doel de glasaal en andere vis sneller en makkelijker te laten migreren tussen het zoute en het zoete water. De recente maatregelen betreffen nabij de schutsluizen de inwerk…
Die vorliegende Dissertation entstand während meiner Tätigkeit als wissenschaftlicher Mitarbeiter bei der Inspire AG. Für die Übernahme der Leitung sowie seine tatkräftige Unterstützung möchte ich Herrn Prof