In Situ Observation of Zirconia Particles at 1200°C by High-Resolution Electron Microscopy |
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| Authors: | Michiko Kusunoki Kyoko Yonemitsu Yukichi Sasaki Yukio Kubo |
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| Affiliation: | Japan Fine Ceramics Center, Nagoya, Japan, 456 |
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| Abstract: | Zirconia (ZrO2) particles (average diameter, 30 nm) were observed in an in situ heating experiment up to 1200°C using a 400-kV high-resolution electron microscope. Thermal vibration of atoms on a (001) surface plane was observed at 1100°C. At 1200°C, grain growth and sintering phenomena were recorded on a videotape, showing (100) lattice planes migrating on a surface of a particle. Direct observation of the sintering process on a lattice level was accomplished for the first time. |
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