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Full-Text Articles in Physical Sciences and Mathematics
Measuring And Modeling The Conductivity Of Highly Insulating Materials, David King
Measuring And Modeling The Conductivity Of Highly Insulating Materials, David King
Senior Theses and Projects
Satellites and other spacecraft must be able to withstand hazardous conditions in order to be viable in their expected operating environments. One specific hazard that occurs due to incident radiation is spacecraft charging. Insulating materials, frequently used in spacecraft and other electrical equipment, while very good at preventing charge flow, also store charge very well. This can create problems; specifically, “if the charge decay time exceeds the orbital period, not all charge will be dissipated before orbital conditions act again to further charge the satellite. As the insulator accumulates charge, the electric field will rise until the insulator breaks down” …
Electric Field Induced Hopping Conductivity And Polarization In Hytrel, Steve Hart
Electric Field Induced Hopping Conductivity And Polarization In Hytrel, Steve Hart
Senior Theses and Projects
The focus of my 4900 research project is centered on the conductivity of Hytrel, a complex, newly developed block co-polymer. I first began to study Hytrel during the summer of 2006, as part of the USU College of Science Mini-Grant program1. My general objective was to study the relationship between the resistivity of Hytrel and hopping conductivity. Hopping conductivity is a theory of electron transport for nonconducting solids, originally developed for amorphous semiconductors2,3. The theory will be examined in greater detail later in this document. While studying this relationship last summer, I noticed an unusual phenomenon …