Sökning: "conductivity mechanism"

Visar resultat 6 - 10 av 97 avhandlingar innehållade orden conductivity mechanism.

  1. 6. Interaction of water with supplementary cementitious materials: Hydration mechanism, microstructure and moisture transport

    Författare :Liming Huang; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; hydration; moisture transport; Supplementary cementitious materials; electrical conductivity; formation factor; durability; microstructure;

    Sammanfattning : Supplementary cementitious materials (SCMs) offer a sustainable solution to reduce carbon emissions from the production of cement and concrete. This dissertation explores the impact of SCMs and the related additives on the hydration process of cementitious materials, which can affect their microstructure and transport properties. LÄS MER

  3. 7. Poly(Alkylthiophene) Blends Processing, Morphology and Conductivity

    Författare :Nils Ljungqvist; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Intrinsically conducting polymers may be an attractive alternative instead to polymers with conducting fillers. The aim of the present work was to study the potential of the processable conducting polymer poly(3-alkylthiophene) as well as possible problems related to its processing. LÄS MER

  4. 8. Modelling of intergranular stress corrosion cracking mechanism : Du som saknar dator/datorvana kan kontakta [email protected] för information

    Författare :Michal Sedlak Mosesson; Bo Alfredsson; Thierry Couvant; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Cohesive Zone Model; Fracture Mechanics; Diffusion; Duplex oxide; Multi-physics; Finite Element Model; Engineering Mechanics; Teknisk mekanik;

    Sammanfattning : When assessing nuclear power plant life, stress corrosion cracking (SCC) plays an important role. Stress corrosion cracking in nuclear power plants is well recognized and heavily researched. Still due to its complicated nature it is not completely understood. There are many different damage mechanisms behind SCC. LÄS MER

  5. 9. Thermal conductivity of AlXGa1-XN and β-Ga2O3 semiconductors

    Författare :Dat Tran; Plamen Paskov; Vanya Darakchieva; Mattias Thorshell; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : For the high-power (HP) electronic applications the existing Si-based devices have reached the performance limits governed by the material properties. Hence the device innovation itself is unable to enhance the overall performance. LÄS MER

  7. 10. Surface potential dynamics on insulating polymers for HVDC applications

    Författare :Shahid Alam; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; dielectric spectroscopy; silicone rubber; intrinsic conduction; surface potential decay; activation energy; electric conductivity; HVDC insulation;

    Sammanfattning : The use of high voltage direct current (HVDC) technology in power transmission systems is continuously expanding. Nowadays, HVDC transmissions operate at voltages up to 800 kV and higher levels are being developed. LÄS MER