[R7-09] In-situ heating TEM experiments of minerals with laser irradiation system | 2022 Annual Meeting of Japan Association of Mineralogical Sciences (JAMS)

2022 Annual Meeting of Japan Association of Mineralogical Sciences (JAMS)

Sep 17 - Sep 19, 2022新潟大学五十嵐キャンパス

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2022 Annual Meeting of Japan Association of Mineralogical Sciences (JAMS)

Sep 17 - Sep 19, 2022新潟大学五十嵐キャンパス

[R7-09]In-situ heating TEM experiments of minerals with laser irradiation system

*Akira MIYAKE¹, Yuki SUZUKI¹, Yohei Igami¹, Ryuichi Nomura², Mitsutaka Haruta², Ichiro Ohnishi³, Hiroki Hashiguchi³(1. Kyoto Univ. Sci., 2. Kyoto Univ., 3. JEOL Ltd.)

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Keywords:

electron microscope,in-situ experiment,laser irradiation

We performed in situ laser heating experiment of minerals, quartz and clinoenstatite in a TEM. We observed the twin in quartz formed by transition from high temperature phase to low temperature phase in the quench experiment from 1500 mW laser irradiation power. Specific diffraction spots in clinoenstatite disappeared at 2300 mW laser irradiation. This means that the transition to high temperature phase occurred, though we could not determine whether this phase was high clinoenstatite or protoenstatite.

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