X-ray Studies on the Structures of Solid Solutions NaCl-CaCl_2 : II. Structures of {111} and {310} Plate-Zones

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概要

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• Structures of {111} and {310} plate-zones explaining the rod distributions of intensity weight in reciprocal space revealed in X-ray patterns from solid solutions of NaCl containing a few per cent of CaCl_2 (reported in Part I) is ploposed. The plate-zones are considered to be composed of a number of smaller units, called platelets, which are disposed in anti-phase relation among themselves in a plate-zone. We proposed probable models of the structures of the two kinds of platelets making up the {111} plate-zone and the {310} plate-zone respectively by assuming that each platelet has crystal structure resembling that of CaCl_2, retaining, however, coherency with the matrix. The qualitative agreement was found between observed and calculated intensities of rod distributions in reciprocal space. The proposed CaCl_2-like structure of the {111} platelet, seems to be plausible one, since it was found that its orientation was followed by that of CaCl_2 particle which precipitated by a certain heat treatment. In the case of the <310> rods, the proposed structure of the {310} plate-zones is rather tentative. Absolute intensity of the <111> rods was roughly estimated by comparing it with that of thermal diffuse scattering from pure NaCl crystal. It was found that we could expect the intensity of the diffuse spots due to the rods to be of the same order as that of thermal diffuse scattering even when only a few per cent of the dissolved Ca^<++>ions are participating in the {111} plate-zones.

• 社団法人日本物理学会の論文
• 1955-09-05

著者

• SUZUKI Kazuo

  Tokyo Institute of Technology

• Suzuki Kazuo

  Tokyo Institute Of Technology Oh-okayama

関連論文

• On the Phase Transition in Barium-Lead Titanate (1).
• X-ray Studies on the Structures of Solid Solutions NaCl-CaCl_2 I. Main Results and General Considerations
• Crystal Structure of Lead Titanato and of Lead-Barium Titanate
• Phase Transitions in Solid Solutions of PbZrO_3 and PbTiO_3 (II) X-ray Study
• Crystal Structure of Pb(Zr-Ti)O_3
• X-ray Studies on the Structures of Solid Solutions NaCl-CaCl_2 : II. Structures of {111} and {310} Plate-Zones
• X-ray Studies on the Structures of Solid Solutions NaCl-CaCl_2 : III. Influence of Heat Treatments on the Diffuse Reflexions of X-rays due to {111} and {310} Plate-Zones
• On the Phase Transition in Barium-Lead Titanate.

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