Antimonates as Additives to Barium Titanate Dielectric Bodies

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Abstract
Antimonates of a number of the alkalis and alkaline earths and of several other metals were prepared and their ceramic and dielectric properties were determined. Only porous bodies could be produced from the individual anti‐monates. Dielectric measurements on these bodies showed that they all had relatively low dielectric constants. The properties of dielectric bodies in the binary systems composed of the an‐timonates of sodium, lithium, barium, strontium, magnesium, and lead plus barium titanate were determined. Additions of all the antimonates except that of magnesium had a depressing effect on the Curie peak of barium titanate, resulting in bodies with dielectric constants of 2000 or less, which showed relatively little variation with temperature. The addition of magnesium orthoantimonate to barium titanate produced a very rapid downward shift in the temperature of the Curie peak. X‐ray studies showed that the antimonates of barium, strontium, sodium, and magnesium, when added to barium titanate in small amounts, formed solid solutions with slightly expanded lattice structures.