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This paper attempts to summarize the basic molecular mechanisms which control the dielectric properties of glasses and glass-ceramic materials. An analysis of these polarizations reveals that alkali ions are the principal constituents which determine the dielectric loss properties. In glassy materials containing alkali ions in rather large quantities, these ions control the losses over most of the...
The dielectric relaxation times associated with a single-axis polar rotator which may occupy several sites as it turns about its axis were calculated in terms of the probabilities of transition from one site to another. Two special cases were considered in detail; (a) that in which all of the sites are equivalent, and (b) that in which one site was stable with respect to the others. It was assumed...
The dielectric constant and cooling curves of highly purified n-hexade-cane, n-dodecyl, n-hexadecyl, n-octadecyl, and n-docosyl bromide have been measured over a large temperature range and at audio frequencies. These compounds will be designated hereafter as C16, C12-Br, C16-Br, C18-Br, and C22-Br respectively. C12-Br, C16-Br, and C18-Br showed a gradual rise in dielectric constant (prestation) beginning...
The dielectric constants of pure samples of four normal long-chain bromides and four normal long-chain alcohols were measured as a function of temperature at 0.25, 0.5,5.0, 50 and, in one case, at 525 kc. to obtain information on the relationship between the molecular structure of solids and their dielectric properties. Long-chain molecules present the interesting possibility of rotation about the...
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