"Dielectric Material" ed. by Marius Alexandru SilaghiPublisher: InTeOp | 2012 | ISBN-13: 9789535107644 | 309 pages | PDF | 18,4 MB
The definition for dielectric constant relates to the permittivity of the material (symbol use here ε). The permittivity expresses the ability of a material to polarise in response to an applied field. It is the ratio of the permittivity of the dielectric to the permittivity of a vacuum. Physically it means the greater the polarisation developed by a material in an applied field of given strength, the greater the dielectric constant will be. Traditionally dielectric materials are made from inorganic substances eg. mica and silicon dioxide.
However polymers are gaining wider use as dielectric materials. This is due to the easier processing, flexibility, able to tailor made for specific uses and better resistance to chemical attack.
Title: Dielectric Material ed by Marius Alexandru Silaghi
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