Dielectric constants

  • Thread starter ddr
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  • #1
I would dearly like to know what material has the highest relative dielectric constant and how much is it?
 

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  • #2
Tyger
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Some doped ferroelectrics have κ values in excess of 1,000.
 
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  • #3
meteor
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In particular, the dielectrical constant k of barium titanate ranges from 1200 to 1600
 
  • #4
NEOclassic
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Originally posted by ddr
I would dearly like to know what material has the highest relative dielectric constant and how much is it?

Hi ddr,
Before the exotic materials mentioned by others were developed, I found, among plastic sheeting that "TEDLAR" a poly-vynilidine was optimum for both its high dielectrc constant and high dielectric strength. Cheers, Jim
 
  • #5
Integral
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Originally posted by NEOclassic
Hi ddr,
Before the exotic materials mentioned by others were developed, I found, among plastic sheeting that "TEDLAR" a poly-vynilidine was optimum for both its high dielectric constant and high dielectric strength. Cheers, Jim

I also can testify to this, Poly-vynalcloride, or Saran Wrap has a very high dielectric constant. We made a capacitor from tin foil and saran warp that amazed us. Part of the lab was to find the break down voltage, we could not. The lab was written with wax paper as the probable dielectric material.
 
  • #6
Platina

What is the speed of light through platina?
 
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