Sökning: "Dielectric"

Visar resultat 1 - 5 av 449 avhandlingar innehållade ordet Dielectric.

1. 1. Dielectric Relaxation in Dielectric Mixtures

   Författare :Enis Tuncer; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

   Sammanfattning : In this thesis dielectric properties of both ideal composite structures and polymeric composite materials were investigated. Numerical calculations were performed to simulate frequency response of interfacial polarization using the finite element method in two dimensions. LÄS MER

3. 2. Dielectric properties of composite structures and filled polymeric composite materials

   Författare :Enis Tuncer; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; dielectric data analysis; dielectric spectroscopy; finite element; dielectric mixtures; composite materials; thermally stimulated depolarization;

   Sammanfattning : .... LÄS MER

4. 3. Cellulose-based electrical insulation materials : Dielectric and mechanical properties

   Författare :Rebecca Hollertz; Lars Wågberg; Markus Biesalski; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; cellulose; dielectric materials; electrical insulation; nanocellulose; nanoparticles; streamer; Fiber- och polymervetenskap; Fibre and Polymer Science;

   Sammanfattning : The reliability of the generation and distribution of electricity is highly dependent on electrical insulation and is essential for the prosperity of our society and a ubiquitous part of our everyday life. The present study shows how some important material properties affect the electrical properties of cellulose-based electrical insulation systems which are used together with mineral oil in high-voltage transformers. LÄS MER

5. 4. Watertree dielectric spectroscopy

   Författare :Peter Thärning; KTH; []
   Nyckelord :;

   Sammanfattning : .... LÄS MER

7. 5. Enhanced Dielectric Response Methods for the Characterization of Dielectric Materials

   Författare :Jing Hao; Nathaniel Taylor; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; FDS; non-contact; dielectric response; combined AC and DC; space-charge polarization;

   Sammanfattning : Dielectric response measurement is widely used for condition assessment of high voltage equipment and for characterizing candidate materials. Measurement with high accuracy and reliability is important in all stages of the lifetime of high voltage equipment, from manufacture to replacement decision. LÄS MER