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boundary conditions for perfect dielectric materials
Usually, dielectric materials have permanent dipoles. As temperature increases, the molecules in the dielectric have more thermal energy and therefore, the amplitude of random motion is greater. This means that the molecules are less closely aligned with each other (even in the presence of an electric field). Hence, the dielectric constant reduces.
One field in which this is helpful is in the manufacture of insulating materials. Dielectric strength determines the strongest electric field an insulator can withstand before it fails. For example, if the insulation around a wire melts or breaks, the insulator's dielectric strength is compromised.
The area of the sheets, the distance between them, and the material between them.
For an insulating material dielectric strength and dielectric loss should be respectively
boundary conditions for perfect dielectric materials
Dielectric meterials are good insulator materials
ASTM D149 - 09 Standard Test Method for Dielectric Breakdown Voltage and Dielectric Strength of Solid Electrical Insulating Materials at Commercial Power Frequencies
it decreases in strength in meany ways for different materials for exsample, with gases if there is an increase in humidity, then it decreases the dielectric strength
Usually, dielectric materials have permanent dipoles. As temperature increases, the molecules in the dielectric have more thermal energy and therefore, the amplitude of random motion is greater. This means that the molecules are less closely aligned with each other (even in the presence of an electric field). Hence, the dielectric constant reduces.
One field in which this is helpful is in the manufacture of insulating materials. Dielectric strength determines the strongest electric field an insulator can withstand before it fails. For example, if the insulation around a wire melts or breaks, the insulator's dielectric strength is compromised.
Dielectric heating is a type of heating used in engineering. Insulated materials are heated and then put over an electric field that changes quickly. It is usually used for making plastics and rubber.
Vera V. Daniel has written: 'Dielectric relaxation' -- subject(s): Dielectric relaxation 'Electrode effects in the degradation of ceramics at high temperature' -- subject(s): Breakdown (Electricity), Ceramic materials, Electric properties, Materials at high temperatures
A 'dielectric' describes a material that supports an electric field and is generally used to describe an insulating material. Two properties exhibited by a dielectric are its permittivity and its dielectric strength. High values of permittivity (abillity to improve capacitance) are desirable for dielectrics used in capacitors, and high values of dielectric strength (ability to withstand voltages) are desirable for insulators but, unfortunately, the two quantities aren't relatated. So, selecting a dielectric is a matter of compromise.
Eugene Basic Materials Company was created in 1999.
The best example of a dielectric with good thermal conduction is diamond, which is almost a perfect dielectric, but also has a thermal conductivity (up to 41kW·m−1·K−1) that is better than most metals (e.g. silver has a thermal conductivity of 0.430kW·m−1·K−1).
Air masses are described by two basic characteristics. Temperature and moisture, or humidity, are the main characteristics that define an air mass.