Essays about: "Alexander Nygren"

Found 3 essays containing the words Alexander Nygren.

1. 1. Effect of Trace Elements on the Particle Size of Magnesium Silicide in Aluminium Extrusion : The Use of Thermo-Calc and DICTRA in order to Produce Aluminium more Efficiently

   University essay from KTH/Materialvetenskap

   Author : Gustav Boustedt; Johan Alexander Valentin Nygren; Gustav Strandgård; [2023]
   Keywords : Thermo-Calc; DICTRA; simulations; EN AW 6082; extrusion; particle precipitation; Mg2Si; sustainable; trace elements; aluminium;

   Abstract : This project is a feasibility study for Hydro Extrusion Sweden AB, a company that produces extruded aluminium profiles. The main purpose of this project was to analyse the difference of Mg2Si particle sizes in aluminium alloys when varying parameters, such as cooling rate and composition, in aluminium extrusion, particularly the EN AW 6082 alloy. READ MORE

3. 2. Thermal induced yellowing of peroxide bleached birch pulp

   University essay from Luleå tekniska universitet/Industriell miljö- och processteknik

   Author : Alexander Nygren; [2020]
   Keywords : Accelerated ageing; Bleaching; Brightness reversion; Kraft pulp; pH; Yellowing;

   Abstract : Brightness reversion, also known as yellowing, is a well-known phenomenon which means that the brightness of paper products decreases during ageing. The name of this phenomenon is based on that paper products usually change in color towards yellow during ageing. READ MORE

4. 3. Microfluidics system for the MOREBAC astrobiology experiment module : Design of a cubesat module

   University essay from KTH/Maskinkonstruktion (Inst.)

   Author : Aron Nygren; Alexander Ramm; [2018]
   Keywords : ;

   Abstract : In order for humans to travel further into space, spacecrafts must be able to sustain life for several months. One way to do this is to have a biological life support system containing bacteria to provide the necessary eco-system to support life. READ MORE