A Calculation of Physical Constants of Ceramic Barium Titanate

• Muratake Masakazu

  Kobayasi Institute of Physical Research

抄録

The dielectric, piezoelectric and elastic constants of polycrystalline ceramics at room temperature are calculated by averaging those values of single crystals on the assumption that the ceramic is composed of spherical crystallites. The calculated values are in good agreement with observed ones, showing that the piezoelectric effects in each single crystal (especially d_<15> at room temp.) play a great part in determining the properties of the ceramic. Also the method is shown for calculating elastic constants of polycrys. tals which consist of spherical crystallites in all directions, with the calculated values of metals (Au, Ag, Cu, Fe etc.) in the cubic system. The "destressing factor", which gives the reations between the internal stress of the sphere and the stress in the surrounding medium, is defined' and calculated.

収録刊行物

• Journal of the Physical Society of Japan

  Journal of the Physical Society of Japan 11 (8), 807-814, 1956-08-05

  一般社団法人日本物理学会

詳細情報

• CRID: 1571135651850136192
• NII論文ID: 110001972178
• NII書誌ID: AA00704814
• ISSN: 00319015
• 本文言語コード: en
• データソース種別:
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