Specific Heat and Thermal Expansion of BaTiO_3

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概要

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• The specific heat and thermal expansion of barium titanate ceramics were measured between room temperature and 250℃., and their anomalies were confirmed. The specific heat, that was measured by Sykes' method showed a λ-type anomaly at the Curie temperature, but the magnitude of the anomaly at the peak was considerably small, amounting to only 0.002-0.015cal/gr. ℃. We measured the thermal expansion with an optical dilatometer, and observed a contraction in the transition region. The thermal expansion c efficient showed a negative peak at the Curie temperature. The specific beat and thermal expansion vs. temperature curves and the positions of their peaks varied slightly for different samples by the condition of their preparation.

• 社団法人日本物理学会の論文
• 1949-08-25

著者

• Shirane Gen

  The Second Faculty Of Engineering University Of Tokyo

• SAWADA Shozo

  The Second Faculty of Engineering, University of Tokyo

• Sawada Shozo

  The Second Faculty Of Engineering University Of Tokyo

関連論文

• Theory of the Transition in KH_2PO_4
• Specific Heat and Thermal Expansion of BaTiO_3

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