鉛イオンを含む物質の誘電的性質

概要

論文の詳細を見る
The dielectric properties of PbZrO_3, PbTiO_3 and PbSnO_3 were measured, as the first step of a systematic investigation of lead compounds. For PbTiO_3 our measurements were mainly made using single crystals. For PbZrO_3 and PbSnO_3, on the other hand, ceramic samples were used, the preparations of single crystals of these two substances having not yet been satisfactory. PbZrO_3 has a transition point at about 250℃, above which temperature the behaviors of this substance resemble with those of BaTiO_3 ; below which temperature, however, do not. The ferroelectricity of PbZrO_3, if it exist, seems to be of a different type from that of BaTiO_3. PbTiO_3 was found to be a ferroelectric similar to BaTiO_3 with the Curie point at about 500℃. Although a hump is observed on the permittivity versus temperature curve of PbSnO_3, any anomaly was not observed for the thermal expansion between 150℃ and 800℃. The latter fact seems to deny the existence of the ferroelectricity for PbSnO_3. (Received March 16, 1951)
宇宙航空研究開発機構の論文
1951-08-20