Dielectric strength is determined as value of electric field strength expressed in v m at which electron conductivity breakdown occurs.
Dielectric constant value of ceramic.
The application of a large dc bias field resulted in a decrease in the dielectric constant and dielectric loss of the multilayer piezoelectric ceramics.
The shift of the curie temperature t c towards a higher value and stabilized temperature dependent dielectric properties were observed under the dc bias field.
A ceramic capacitor is a fixed value capacitor where the ceramic material acts as the dielectric it is constructed of two or more alternating layers of ceramic and a metal layer acting as the electrodes the composition of the ceramic material defines the electrical behavior and therefore applications.
The ratio of these two values is the dielectric constant.
The value of the static dielectric constant of any material is always greater than one its value for a vacuum.
The test can be conducted at different frequencies often between the 10hz and 2mhz range the sample must be flat and larger than the 50mm 2 in circular electrodes used for the measurement.
To top dielectric constant other important property of dielectric materials is dielectric constant relative to vacuum ability of a material to carry alternating current dielectric constant of vacuum.