dielectric

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Related to dielectrically: dielectric material, Dielectric medium

dielectric

(dī'ĭlĕk`trĭk), material that does not conduct electricity readily, i.e., an insulator (see insulationinsulation
, use of materials or devices to inhibit or prevent the conduction of heat or of electricity. Common heat insulators are, fur, feathers, fiberglass, cellulose fibers, stone, wood, and wool; all are poor conductors of heat.
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). A good dielectric should also have other properties: It must resist breakdown under high voltages; it should not itself draw appreciable power from the circuit; it must have reasonable physical stability; and none of its characteristics should vary much over a fairly wide temperature range. One important application of dielectrics is as the material separating the plates of a capacitorcapacitor
or condenser,
device for the storage of electric charge. Simple capacitors consist of two plates made of an electrically conducting material (e.g., a metal) and separated by a nonconducting material or dielectric (e.g.
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. A capacitor with plates of a given area will vary in its ability to store electric charge depending on the material separating the plates. On the basis of this variation each insulating material can be assigned a dielectric constant. Generally, the dielectric constant of air is defined as 1 and other dielectric constants are determined with reference to it. Other properties of interest in a dielectric are dielectric strength, a measure of the maximum voltage it can sustain without significant conduction, and the degree to which it is free from power losses.

dielectric

[‚dī·ə′lek·trik]
(materials)

dielectric

1. a substance or medium that can sustain a static electric field within it
2. a substance or body of very low electrical conductivity; insulator

dielectric

An insulator (glass, rubber, plastic, etc.). Dielectric materials can be made to hold an electrostatic charge, but current cannot flow through them.
References in periodicals archive ?
The average power absorbed by a given volume of material when heated dielectrically is related to the dielectric constant value (Oloyede and Groombridge 2000).
Sipex Corporation designs, manufactures and markets high-performance, analog integrated circuits using standard mixed-signal and dielectrically isolated BiCMOS wafer process technologies.
Founded in 1951, the company began by making dielectrically, or electronically, quilted products consisting of a layer of wadding between two layers of vinyl.
Sebastian Schmidt, product marketing manager for X-FAB's High Voltage product line, said, "Our XT018 technology provides exceptional dielectrically isolated high-voltage support.
The dielectrically homogeneous system is assumed to depend mainly on the dielectric behavior of the matrix.
Services under this contract include but are not limited to remounting and refurbishing to the body or chassis of said trucks along with the associated services and/or repairs of the truckAAs systems, components, or parts to ensure the trucks perform structurally, mechanically, functionally and dielectrically as intended.
Developed in National's wafer fabrication site in Arlington, Texas, VIP10 is a high-speed, dielectrically isolated, complementary bipolar IC process that utilizes deep trench technology on a bonded wafer for complete dielectric isolation and optimal high-speed amplifier performance.
Electrical energy is then applied across the die and the platen to dielectrically heat the compressed portions sufficient to bond the fibrous webs to the mat.
The transformers are dielectrically tested at 4000V between primary and secondaries.