Observation of Surface Microstructure of Tricalcium Silicate by Transmission Electron Microscopy.

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  • HISA Masaaki
    Faculty of Science and Technology, Materials Chemistry, Ryukoku University
  • SEMBIRING Nelson
    Faculty of Science and Technology, Materials Chemistry, Ryukoku University
  • SHIRAKAMI Tatsuya
    Faculty of Science and Technology, Materials Chemistry, Ryukoku University
  • URABE Kazuyori
    Faculty of Science and Technology, Materials Chemistry, Ryukoku University

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  • 透過型電子顕微鏡によるケイ酸三カルシウム表面の微構造観察

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Abstract

The surface microstructure of tricalcium silicate (C3S) was observed by transmission electron microscopy (TEM). The tricalcium silicate specimen was dispersed in ethanol or isopropanol. It was then placed on a copper mesh with a collodion film that had an amorphous layer on the surface of each grain. The amorphous layer was caused by the hydration reaction of C3S with water in the dispersants. The irradiation by an electron beam caused the layer to change into CaO crystallites with a concurrent formation of silica-rich domains.

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