Dear all,
Salah satu posisi yang dibuka dalam lowongan di bawah ini akan dibimbing oleh pembimbing saya (Professor Andreas Echtermeyer). Silakan kontak jika ingin bertanya lebih lanjut.
salam,
iwan halim s
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Two vacant PhD positions within the project "Thermo Responsive Elastomer Composites for Cold Climate Applications". The PhD research fellowships are awarded for a total period of 3 years, and are expected to commence in mid-late 2014
Most of the undiscovered reserves of oil and gas on the Norwegian Continental Shelf lie in polar areas. Unlocking these resources requires significant R&D efforts to surmount the current shortcomings in technology. Low temperatures are known to pose a major threat for polymers; many are prone to excessive stiffness or even brittleness. Although the use (volume) of elastomers in the oil and gas industry is relatively low compared to other materials, the role of elastomer is quite essential: many seals are primary barriers against leakage. O-rings and seals are used in pressure containing equipment from downhole through seabed trees up to deck equipment and can be exposed to cold ambient air or subjected to transient depressurisation causing rapid cooling. One challenge with elastomers is their considerable thermal contraction with temperature decrease being roughly an order of magnitude higher than that of steel. Upon cooling, a seal compressed in its groove may lose interference with the mating steel surface to form a leak path for the contained fluid. The project consortium comprises NTNU, SINTEF, FMC Technologies and Statoil ASA, and is partially funded by The Research Council of Norway.
The PhD positions will focus on elastomer solutions with advanced functional additives aiming at solving two different challenges:
(1) Reduction of the thermal contraction of the rubber to maintain the contact pressure required for the seal to work, (IVT-80/14) and
(2) Development of methods to characterize performance at cold temperatures as well as operating temperatures of these novel elastomers (IVT-81/14)
Two different material solutions will be investigated within the project. One PhD will concentrate on one material solution and focus on mechanical engineering with polymers, characterization of elastomers at low temperatures and following simulated aging. The other PhD will concentrate on a second material solution with focus on polymer science, seal and mechanical performance, degradation and some polymer chemistry. One PhD should spend some time in Oslo. The candidates should have good theoretical and experimental knowledge.
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