Essays about: "Scanning Electron Microscopy"

Showing result 21 - 25 of 299 essays containing the words Scanning Electron Microscopy.

1. 21. Processing techniques of perovskite solar cells : Properties depending on material and manufacturing

   University essay from Uppsala universitet/Fysikalisk kemi

   Author : Andréa Nordmark; Simon Nilsson; [2023]
   Keywords : ;

   Abstract : This project investigates how different types of perovskite solar cells, differentiated by choice of materials and processing techniques, compares to each other regarding performance and characterization. The purpose of the project is to further develop perovskite solar cells and to improve the method of manufacturing for better performance. READ MORE

3. 22. Influence of Surface Carbon Content on the Wear of Threaded Connections in Rock Drilling Steels

   University essay from Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

   Author : Andreas Hälsing; [2023]
   Keywords : carbon content; wear performance; carburized steel; dry contact interface; threaded connections; drill rods; samples; shot peening; production process; twin-disc wear tester; RPM; operating conditions; wear rate; surface topography; hardness; optical analysis; light optical microscopy; scanning electron microscopy; surface carbon content; microstructural changes; frictional heat; contact pressure; wear mechanisms; plastic deformation; adhesive scratching; material removal; delamination;

   Abstract : This thesis work was conducted at Luleå University of Technology in collaboration with Sandvik Rock Tools. The aim of the work was to determine the influence of carbon content on the wear performance in carburized steel in the dry contact interface of threaded connections between drill rods. READ MORE

4. 23. Characterization of NiMo catalysts with noble metal promoters

   University essay from Lunds universitet/Kemiteknik (CI)

   Author : Filip Hallböök; [2023]
   Keywords : Catalysis; Hydrodeoxygenation; TPR; NiMo-catalysts; Chemical engineering; Chemistry;

   Abstract : To be able to face the challenges brought on by climate change there is an urgent need to reduce the heavy dependence on fossil fuels. Bio-oil is one such renewable and carbon-neutral replacement that has shown promising potential. A key step in making bio-oil commercially feasible is improvements of the upgrading processes of the bio-oil. READ MORE

5. 24. Characterization of Bi-incorporated InSb(111)A/B Surfaces : An STM and XPS Study

   University essay from Lunds universitet/Synkrotronljusfysik; Lunds universitet/Fysiska institutionen

   Author : Shengpeng Huang; [2023]
   Keywords : indium antimonide; surface reconstructions; bismuth deposition; scanning tunneling microscopy; X-ray photoelectron spectroscopy.; Physics and Astronomy;

   Abstract : In recent years, III-V semiconductor materials have received increasing attention due to their admirable electronic properties like direct tunable bandgaps and high charge carrier mobility. Indium Antimonide (InSb) possesses the largest electron mobility among III-V materials and is promising for infrared detectors, high-speed field effect transistors, and spintronics. READ MORE

6. 25. Effect of Proton Irradiation on the Mechanical Properties of Fe-10Cr-4Al in Liquid Lead

   University essay from KTH/Fysik

   Author : Gabriela Lapinska; [2023]
   Keywords : Fe-10Cr-4Al; Lead; Radiation Damage; Slow Strain Rate Testing; Fe-10Cr-4Al; bly; strålskador; Slow Strain Rate Testing;

   Abstract : Among the structural materials under consideration for future lead-cooled fastreactors, special attention is paid to ferritic Fe-10Cr-4Al due to its superior corrosionand erosion protective properties, as well as its insensitivity to liquid metalembrittlement in liquid lead. This thesis gives an inside look into the radiation damageproperties of the alloy and the possible embrittlement scenarios. READ MORE