Scientific Teaching, Analysis and Research

Findings on "Levitation in Earth's E-field" Technology


text book values of various dielectric materials

material
dielectric constant
break down voltage volts per mil
matter phase
other notes
air 1 21 gas  
bakelite 4.4 to 5.4 300 solid  
cellulose ascetate 3.3 to 3.9 250 to 600 solid "cellophane"
ethyl alcohol 24 ? liquid industerial - pure bipolar
formica 4.6 to 4.9 450 solid  
glass 7.6 to 8 200 to 250 solid common/window
mica 5.4 3800 to 5600 solid  
mylar® 3.2 7500 solid  
paper 3.0 200 solid no ink
paraffin 2.1 ? solid  
plexiglass 2.8 990 solid  
polyethylene 2.3 1200 solid  
polystyrene 2.6 500 to 700 solid styrofoam
porcelain 5.1 to 5.9 40 to 100 solid  
quartz 3.8 1000 solid  
rubber 2.8 ? solid hard type
teflon 2.1 1000 to 2000 solid  
vacuum 1 ? n/a  
vinyl 2.8 to 4.5 ? solid  
water 76.5 to 80 ? liquid distilled - bipolar
Mylar® is DuPont's brand name for polyester film.

Experimental Dielectric Values for Varoius Common Materials

material
dielectric constant
break down voltage volts per mil
matter phase
other notes
         

more dielectric constants

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