NEC-LIST: High Dielectric Constant Materials

Hi Glynda,
 
You are searching for a material with dielectric constant of 20. This
is a permittivity that lies between the low epsilon plastics and the
much higher epsilon of dielectric ceramics, typically from 100 to
10,000 !
 
One good source of finding dielectric materials ( you have to look
under " ceramics " is Thomas Register : www.thomasregister.com , where
you can find many different material suppliers.
 
My suggestion is to contact Cuming Corporation 1-800-432-6464, and ask
for catalog on dielectrics. They produce dielectric plates ( 1/8 to
1/2 inch thick, and dielectric rods, up to 1 inch diameter. These are
ceramic dielectrics with diel. constants, called K - material, from 10
to 35. These materials can be machined to a certain degree.
 
Unfortunately, there are no plastic materials, I know of, with diel.
const. of 20.
 
good luck,
 
Max Schmitt
Received on Thu Mar 02 2000 - 13:26:20 EST