IB. the dielectric loss angle, representing relaxation phenomena. [Pg.123]

S = the dielectric loss angle analogous to the mechanical loss angle e = the complex dielectric constant = the static or low fiequency value of the dielectric constant, [Pg.399]

Fig. 7. Tangent of the dielectric loss angle versus the temperature in the preoriented sample of polymer la. [Pg.341]

Dielectric loss factor The product of the dielectric constant and the tangent of the dielectric-loss angle for a material. [Pg.200]

The dielectric loss factor (loss factor) of a material is the product of the dielectric constant and the tangent of the dielectric loss angle for a material. This is a measure of how easily the material will heat up in a high-frequency field such as a radio frequency or microwave frequency oven. [Pg.137]

The variations of dielectric constant and of the tangent of the dielectric-loss angle with time provide information on the mobility and concentration of charge carriers, the dissociation of defect clusters, the occurrence of phase transitions and the formation of solid solutions. Techniques and the interpretation of results for sodium azide are described by Ellis and Hall [372]. [Pg.33]

Ffg. 24. Dependence of dielectric perme ability e (1), tangent of dielectric loss angle (2), specific volume resistance (3) and water absorption (4) on the curvii period for epoxide foams (7 = 35 kg m ) at 98% relative humidity [Pg.56]

The dissipation factor, DF, is the ratio of the resistive (loss) component of current 1 to the capacitive component of current, and equals the tangent of the dielectric loss angle, 5, as follows [Pg.409]

The most noticeable difference between syntactic foams with the same filler but different binders is seen in the tangent of the dielectric loss angle (Table 25)11(. If glass microspheres replace organosilicon ones for the same binder, not only tan 8, but also e decrease 1). But also the dielectric properties and the concentration of the binder affect the final foam s e (Fig. 18) n). [Pg.107]

Figure 8.8 Current /, voltage U and power P of a capacitor. Without a dielectric, the phase shift between / and U is exactly 90°, but in the presence of a dielectric it is (90°-6), where 6 is the dielectric loss angle. |

Jurkawska et al. [66] investigated the effect of fullerene and carbon black on the properties of rubber. In addition to beneficial improvements to physical properties such as elastic modulus fullerene at the 0.06-0.75 phr level, also affected were electrical properties such as dielectric loss angle and permittivity. [Pg.139]

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