Discovering the Material with the Highest Dielectric Constant

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SUMMARY

The material with the highest relative dielectric constant is barium titanate, with values ranging from 1200 to 1600. Additionally, TEDLAR, a poly-vinylidine, is noted for its high dielectric constant and strength, making it an optimal choice among plastic sheeting. Poly-vinyl chloride, commonly known as Saran Wrap, also exhibits a very high dielectric constant, demonstrated through practical experiments involving homemade capacitors. These findings establish a clear hierarchy of materials based on their dielectric properties.

PREREQUISITES
  • Understanding of dielectric materials and their properties
  • Familiarity with ferroelectric materials and their applications
  • Knowledge of capacitor construction and testing methods
  • Basic principles of electrical engineering
NEXT STEPS
  • Research the dielectric properties of barium titanate in various applications
  • Explore the manufacturing and applications of TEDLAR in electronics
  • Investigate the use of Saran Wrap in capacitor design and its performance metrics
  • Study the effects of doping on the dielectric constants of ferroelectric materials
USEFUL FOR

Materials scientists, electrical engineers, and anyone involved in the design and testing of capacitors and dielectric materials will benefit from this discussion.

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?
 
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