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Showing result 1 - 5 of 10 essays matching the above criteria.

1. 1. An Investigation in Binder Jetting of Copper Graphene Composites

   University essay from Uppsala universitet/Institutionen för materialvetenskap

   Author : Rajat Gulabrao Kawalkar; [2022]
   Keywords : inder Jetting; Sintering; Copper Composite; Copper Reference; Density; Graphene;

   Abstract : The purpose of this work is to explore the feasibility of using binder jetting to print copper-graphene composites. This work discusses in detail the approach used to print the composite samples which are optimised through various processes to generate denser parts than a copper reference print and finally discussing various opportunities to enhance development of the process. READ MORE

3. 2. Characterization of Graphene-Based Anisotropic Conducting Adhesives : A study regarding x-ray sensing applications

   University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Author : Marcus Gärdin; [2019]
   Keywords : Anisotropic conductive adhesive; Graphene; Flip-chip; Graphene oxide; Epoxy composite; Anisotropt ledande adhesive; Grafen; Flip-chip; Grafenoxid; Epoxykomposit;

   Abstract : A common method of cancer treatment is radiation therapy. In radiation therapy, a treatment planning system is made to specify the dose of X-rays needed to eradicate the tumor. To assure the right amount of X-ray dosage a quality assurance is using a phantom containing radiation sensors. READ MORE

4. 3. Innovative Methods for Welding Ultra High Strength Steel with Resistance Spot Welding

   University essay from KTH/Industriell produktion

   Author : Rickard Aldén; [2018]
   Keywords : ;

   Abstract : Resistance spot welding (RSW) is the most frequently used method for welding thin sheets in manufacturing industries such as the automotive industry, because of the high productivity of RSW. In order to reduce CO2 emissions the automotive industry strives towards creating structures of light weight, this is partly achieved by the use of lightweight materials such as Aluminum and composite materials. READ MORE

5. 4. Swedish Equity Sectors Risk Management with Commodities : Revisiting dynamic conditional correlations and hedge ratios

   University essay from Linköpings universitet/Nationalekonomi

   Author : Daniel Engström; Niklas Gustafsson; [2017]
   Keywords : Hedging; hedge; commodities; futures; hedge ratio; conditional correlation; DCC; GO-GARCH; DCC-GARCH; GARCH; Dynamic conditional correlation; oil; GSCI; copper; gold; safe haven; optimal hedge ratio; finance; economics; markets; risk; risk management; hedge effectiveness; Risk; riskhantering; råvaror; terminer; futures; hedging; hedge; GARCH;

   Abstract : The purpose of this study is to investigate changes in dynamic conditional correlations between Swedish equity sector indices and commodities using oil, gold, copper and a general commodity index. Additionally the purpose is to evaluate which of the two methods, DCC- GARCH or GO-GARCH that is more efficient in estimating correlation for hedge ratio calculation. READ MORE

6. 5. Self Lubricating Components

   University essay from Uppsala universitet/Institutionen för teknikvetenskaper

   Author : Simon Tidén; Niklas Levin Bjärnlid; Tim Melin; Daniéla Quist; Filip Selenius Larsson; [2017]
   Keywords : self lubricating; solid lubricant; high speed steel; powder metallurgy; friction; wear; molybdenum disulfide; tungsten disulfide; hexagonal boron nitride; soft metals; copper;

   Abstract : The tribological and mechanical properties are of great importance for a material’s lifetime, since it is highly dependent on these two factors. The purpose of this report was to examine suitable solid lubricants for Erasteel, a company that manufactures hot isostatic pressed high speed steels, that will enhance the tribological properties of their steels without worsening the mechanical properties. READ MORE