Sökning: "Lars Nyborg"

Visar resultat 1 - 5 av 7 avhandlingar innehållade orden Lars Nyborg.

1. 1. Thick and Thin Ti2AlC Coatings

   Författare :Jenny Frodelius; Lars Hultman; Per Eklund; Hans Högberg; Lars Nyborg; Linköpings universitet; []
   Nyckelord :NATURAL SCIENCES; NATURVETENSKAP;

   Sammanfattning : This Thesis explores the deposition techniques of magnetron sputtering and high velocity oxy-fuel (HVOF) spraying for Ti2AlC as a promising high-temperature material. Magnetron sputtering aims at producing thin (≤1 μm) Ti2AlC films of high crystal quality for use as a model system in understanding the material’s basic properties. LÄS MER

3. 2. Tailoring structure and morphology during additive manufacturing of metallic components

   Författare :Jithin James Marattukalam; Björgvin Hjörvarsson; Ulf Jansson; Martin Sahlberg; Lars Nyborg; Uppsala universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Selective laser melting; process parameters; scanning methodologies; AMLOYZR01; bulk metallic glass; 316L SS; grain orientation;

   Sammanfattning : The work described in this thesis explores the use of laser process parameters to functionalize the material properties by the control of microstructure and optimization of morphology in components by selective laser melting. The microstructure in amorphous and crystalline metallic alloy systems is influenced by changing the laser power density and scanning strategies respectively. LÄS MER

4. 3. Cost and weight effective composite design of automotive body structures

   Författare :Per Mårtensson; Dan Zenkert; Malin Åkermo; Lars Nyborg; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Farkostteknik; Vehicle and Maritime Engineering;

   Sammanfattning : The automotive industry stands in front of a great challenge, to decrease its impact on the environment. One important part in succeeding with this is to decrease the structural weight of the body structure and by that the fuel consumption or the required battery power. LÄS MER

5. 4. On the Microstructure and the Thermal Conductivity in Compacted Graphite Iron

   Författare :Martin Selin; Ingvar L. Svensson; Daniel Holmgren; Lars Nyborg; Kenneth Hamberg; Jönköping University; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Compacted graphite iron; Microstructure; Thermal conductivity; Ferrite; Cementite; Nodularity; Mathematical modelling; Laser flash technique; Austempering;

   Sammanfattning : Compacted graphite iron (CGI) is a cast iron material that has gained much attention due to its attractive material properties which are intermediate between those of grey and ductile cast iron. In the automotive industry compacted graphite iron has become an interesting alternative material to grey cast iron in components like cylinder blocks or cylinder heads. LÄS MER

7. 5. Surface modification of inorganic materials with graphene oxide : From solution to high-temperature synthesis

   Författare :Simon Tidén; Ulf Jansson; Mamoun Taher; Erik Lewin; Lars Nyborg; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Graphene; Graphene oxide; Coatings; Additive Manufacturing; Laser Powder Bed Fusion; Reactive Hot Pressing; Kemi med inriktning mot materialkemi; Chemistry with specialization in Materials Chemistry;

   Sammanfattning : The use of graphene as an additive in materials is often challenging due to the agglomeration of the two-dimensional graphene sheets. An alternative additive is graphene oxide (GO), an oxidized form of graphene, which is easily dispersed in water. LÄS MER