Sökning: "Materialteknik"
Visar resultat 21 - 25 av 2756 avhandlingar innehållade ordet Materialteknik.
21. Ferroelectric Heterostructures: Growth and Microwave Devices
Sammanfattning : .... LÄS MER
22. High temperature oxidation and corrosion of NiAl coatings
Sammanfattning : .... LÄS MER
23. The microstructures of Ti-6Al-4V and Ti-6Al-2Sn-4Zr-6Mo and their relationship to processing and properties
Sammanfattning : The research described in the thesis concerns phase transformations and mechanical properties of the titanium alloys Ti-6Al-4V and Ti-6Al-2Sn-4Zr-6Mo. The need to weld the alloys for certain engine components can expose the alloy locally to non-optimum thermal cycles and it is therefore of importance to gain an understanding of the kinetics involved in the phase transformations during heating and cooling. LÄS MER
24. Microstructural changes in high strength steels exposed to large deformation and high strain rates
Sammanfattning : Increasing steel prices and environmental aspects have put forward the demand to reduce material consumption and energy usage in manufacturing industry and near-net-shape manufacturing techniques have thus become increasingly important. High-velocity parting-off,high-velocity forming and cold ring rolling are three such manufacturing methods that exhibit great potentials in terms of material waste reduction. LÄS MER
25. On the Dielectric Losses of Polyethylene at Medium and High Frequencies
Sammanfattning : AbstractAs mobile communication moves from 3G to 4G, the bandwidth used will be extended from 2 GHz to 5 GHz. The propagation loss is related to the 2.6:th power of frequency, thus a large increase in power consumption may be expected. LÄS MER