Variation of dielectric constant with temperature

✍ Scribed by G.P. Srivastava; Y.P. Varshni

• Publisher: Elsevier Science
• Year: 1956
• Weight: 113 KB
• Volume: 22
• Category: Article
• ISSN: 0031-8914
• DOI: 10.1016/s0031-8914(56)90004-0

✦ Synopsis

A number of relations have been suggested to represent the decrease of dielectric co.nstant with temperature.

In the following , represents the dielectric constant, t temperature in °C and T the temperature on absolute scale.

A k e r 1 o f 1) found that for several Water-Alcohol mixtures the following relation holds good.

log ~ = a --bT (I) where a and b are constants. 0 s h r y and A k e r 1 o f 2) found that such a relation holds for water upto 250°C.

M i l 1 e r s), H e s t o n and S m y t h 4) and others have employed linear relations between ~ and t.

Drake, Pierce and Dow 5) and Wyman 6) suggest for water up to I'00°C:

= a[1 --b (t --25) + c (t --25)2]

(2)