Discovering the Material with the Highest Dielectric Constant

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    Constants Dielectric
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Discussion Overview

The discussion centers on identifying materials with the highest relative dielectric constant, exploring various candidates and their properties. It includes theoretical considerations and practical applications related to dielectrics.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • Some participants propose that doped ferroelectrics can have κ values exceeding 1,000.
  • Others mention that the dielectric constant k of barium titanate ranges from 1200 to 1600.
  • One participant highlights "TEDLAR," a poly-vinylidine, as an optimal material for its high dielectric constant and strength.
  • Another participant supports the use of poly-vinyl chloride, or Saran Wrap, noting its high dielectric constant and successful use in a capacitor experiment.
  • A later reply introduces a question about the speed of light through platina, which appears unrelated to the main topic.

Areas of Agreement / Disagreement

Participants present multiple competing views on the materials with the highest dielectric constants, and the discussion remains unresolved regarding which material is definitively the highest.

Contextual Notes

Some claims depend on specific conditions or definitions, and there are unresolved aspects regarding the comparison of different materials' dielectric properties.

ddr
I would dearly like to know what material has the highest relative dielectric constant and how much is it?
 
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Some doped ferroelectrics have κ values in excess of 1,000.
 
Last edited:
In particular, the dielectrical constant k of barium titanate ranges from 1200 to 1600
 
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
 


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.
 
Platina

What is the speed of light through platina?
 
Last edited by a moderator:

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