MINERAL DIELECTRIC
CONSTANTS AND THE OXIDE ADDITIVITY RULE
R. D. Shannon, M. A. Subramanian
Central Res. Dept., Experimental Station, E. I. Du Pont de Nemours i
Co.,
Inc., Wilmington, DE 10880-0356 Contrib. No. 5108
A. N. Mariano
48 Page Brook Rd., Carlisle, MA 01741
G. R. Rossman
Div. Geol. Planetary Sci., Calif. Inst. Tech., Pasadena, CA 01125
ABSTRACT
The 1 KHz dielectric constants of a variety of synthetic aluminate
garnets: Y3Al2O12
, Ho3Al5O12
, Y2.93Nd.07Sc2Al3O12
and Gd2.95Nd0.05Sc1.98Cr0.02Al3O2
and several silicates: CaB2Si2O5
(danburite), Ca3A12Si3O12
(grossular) and Mg2A14Si5O18
(cordierite) were determined using the two-terminal method with edge
corrections. These data and polarizabilities derived from the published
single crystal dielectric constants of simple oxides were used to
compare compound polarizabilities obtained from the Clausius-Mosotti
equation and the oxide additivity rule.
Mat. Ras. Soc. Symp. Proc. Vol. 150.