Sökning: "Material characterizations"

Visar resultat 1 - 5 av 55 avhandlingar innehållade orden Material characterizations.

1. 1. Development of Nanostructured Tungsten Based Composites for Energy Applications

   Författare :Mazher Ahmed Yar; Mamoun Muhammed; Per-Olov Käll; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Tungsten; Nano-tungsten; ODS tungsten; W-La2O3; W-Y2O3; SPS; Plasma-facing materials; Armour material; fusion material;

   Sammanfattning : Tungsten (W) based materials can be used in fusion reactors due to several advantages. Different fabrication routes can be applied to develop tungsten materials with intended microstructure and properties for specific application including nanostructured grades. LÄS MER

3. 2. Electrochemical Characterizations of Conducting Redox Polymers : Electron Transport in PEDOT/Quinone Systems

   Författare :Mia Sterby; Martin Sjödin; Maria Strömme; Rikard Emanuelsson; Adolf Gogoll; Robert Hillman; Uppsala universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Conducting Redox Polymer; PEDOT; Quinone; Charge transport; Conductivity; Organic Battery; Engineering Science with specialization in Nanotechnology and Functional Materials; Teknisk fysik med inriktning mot nanoteknologi och funktionella material;

   Sammanfattning : Organic electrode materials for rechargeable batteries have caught increasing attention since they can be used in new innovative applications such as flexible electronics and smart fabrics. They can provide safer and more environmentally friendly devices than traditional batteries made from metals. LÄS MER

4. 3. Functional Dendritic Materials using Click Chemistry : Synthesis, Characterizations and Applications

   Författare :Per Antoni; Anders Hult; Michael Malkoch; Stefan Hecht; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Dendrimer; Dendron; Dendritic; Hyperbranched; Click; Chemistry; CuAAc; One-Pot; Multi-functional; Simultaneous; Honeycomb; Isoporous; MALDI; NMR; GPC; TGA; DSC; Polymer chemistry; Polymerkemi;

   Sammanfattning : Förfrågan efter nya och mer avancerade applikationer är en pågående process vilket leder till en konstant utveckling av nya material. För att förstå relationen mellan en applikations egenskaper och dess sammansättning krävs full förståelse och kontroll över materialets uppbyggnad. LÄS MER

5. 4. Electrochemical characterizations of conducting redox polymers with proton traps : Enabling proton cycling in aprotic systems for high potential energy storage

   Författare :Lisa Åkerlund; Martin Sjödin; Rikard Emanuelsson; Adolf Gogoll; Maria Strömme; Carita Kvarnström; Uppsala universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Conducting redox polymers; Proton trap; Quinones; Organic energy storage; Organic batteries; Engineering Science with specialization in Nanotechnology and Functional Materials; Teknisk fysik med inriktning mot nanoteknologi och funktionella material;

   Sammanfattning : Floods, droughts and unpredictable weather could be the new reality for millions of people in a near future, unless we drastically decrease our greenhouse gas emissions to prevent the global average temperature from increasing even further. Material innovations will most certainly be essential for many of the technical solutions needed in order to tackle environmental issues. LÄS MER

7. 5. Modelling and Characterisation of the Martensite Formation in Low Alloyed Carbon Steels

   Författare :Jessica Gyhlesten Back; Lars-Erik Lindgren; Göran Engberg; Bevis Hutchinson; Luleå tekniska universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Dilatometry; Hardness; EBSD; Martensite; Austenite; Kurdjumov-Sachs; Phase transformation; Modelling; Material Mechanics; Materialmekanik; Steel Forming and Surface Engineering;

   Sammanfattning : The current work contains experimental and theoretical work about the formation of martensite from the austenitic state of the steel Hardox 450. Simulation of rolling and subsequent quenching of martensitic steel plates requires a model that can account for previous deformation, current stresses and the temperature history, therefore dilatometry experiments were performed, with and without deformation. LÄS MER