Abstract
I HAVE prepared a ceramic material which, although apparently being pure rutile, has quite different dielectric properties. It was obtained by heating pure titanium oxide (TiO2) to a temperature of 1,400° C., as described elsewhere1. X-ray analysis leads to the same Debye–Scherrer pattern as rutile (axis ratio 1 : 0.911). The frequency dependence of the dielectric constant and of tan θ (θ = loss angle) of this substance is shown in the accompanying graph, measured at the Centre d'études des Télécommunications, Paris, by courtesy of the director, M. Caye. This substance thus exhibits a Debye type of loss connected with a very high static dielectric constant.
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References
Italian Patent 7592, Aug. 9, 1951.
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NICOLINI, L. A New Dielectric Material. Nature 170, 938 (1952). https://doi.org/10.1038/170938a0
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DOI: https://doi.org/10.1038/170938a0
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