Absorption of Microwave Energy by a Spherical Nonmagnetic Metal Particle

Abstract

It is shown that scalar particle creation in the gravitational field of a massive object could OCCUI even if the radius of the object is larger than the Schwarzschild radius. Scalar field condensation could change the metric drastically, and decrease the observable mass of the system.

Iron production from Fe3O4 and graphite by applying 915MHz microwaves

“…:7, m FeO ðrÞ¼ 0:2, d is the skin depth [10][11][12]. This indicates that the ohmic loss will be higher in the wustite phase (FeO¼Feþ1/2O 2 ).…”

Negligible absorption of radiofrequency radiation by colloidal gold nanoparticles

“…The amount of induction Joule heating in a non-magnetic metal nanoparticle is expressed as 1 30 l 2 0 rR 5 x 2 H 2 0 [26][27][28]. Here, l 0 is the permeability of free space, r is the electrical conductivity of metal, R is the radius of nanoparticle, x is the angular frequency, and H 0 is the magnetic field.…”

Temperature dependence and shape effect in high-temperature microwave heating of nickel oxide powders

“…The influence of particle shape on MW absorption at different frequencies was predicted by Mie's theory, with the effects of spherically shaped particles being determined theoretically [18][19][20]. Ignatenko et al have previously reported that when considering the energy loss of these materials in a MW field, it is not possible to ignore the effect of the magnetic component and still achieve a good correlation between the analytical solution and experimental results [21,22].…”