[P-CG22] Shock responses of planetary materials elucidated from meteorites and dynamic compression experiments

2019年5月28日(火) 10:45 〜 12:15 ポスター会場 (幕張メッセ国際展示場 8ホール)

コンビーナ:関根利守(Center for High Pressure Science and Technology Advanced Research)、奥地拓生(岡山大学惑星物質研究所)

Impact phenomena had played essential roles in the process of planetary evolution. Recent analytical and experimental developments reveal a new prospective on the effects of shock-compression process for planetary materials. For deeper understanding of such shock effects, it is necessary to evaluate the detailed shock conditions from the observations of naturally-shocked planetary materials, and to compare them with the results on the planetary materials experienced a wide range of known shock conditions. Several metastable phases, that have not been known before, have recently been identified in shocked meteorites. They suggest that the shock state is often not in equilibrium and that it is more complicated process than ever thought. Experimental techniques including laser-driven shock compression and x-ray free electron laser diagnostics have been progressed to successfully simulate a wide range of shock conditions. The recent results indicate that shocked grains are fractured and rotated at relatively low pressures, and that they are subsequently transformed into denser phases or melts, or their mixtures at pressures of a few 100s GPa. Understanding of such shock dynamics requires another prospect, which is qualitatively different from the static high pressure and high temperature consensus. Therefore, it is timely to have an international symposium on dynamics of planetary materials.

[PCG22-P01] 議論

*奥地拓生¹、関根利守² (1.岡山大学惑星物質研究所、2.Center for High Pressure Science and Technology Advanced Research)

[PCG22-P02] Shock-compressed behavior
of quartz by XFEL

*佐藤友子¹、丹下慶範²、瀬戸雄介³、関根利守^4,5、尾崎典雅⁴、西川豊人⁴、宮西宏併⁴、松岡健之⁴、兒玉了祐⁴、富樫格²、犬伏雄一²、籔内俊毅⁶、矢橋牧名⁶ (1.広島大学、2.高輝度光科学研究センター、3.神戸大学、4.大阪大学、5.北京高压科学研究中心、6.理化学研究所)

[PCG22-P04] Laser-shock experiments of dense polymorphs of Mg₂SiO₄: technical developments using synthetic single crystals

*Narangoo Purevjav¹、Takuo Okuchi¹、Norimasa Ozaki²、Takayoshi Sano³、Yuhei Umeda²、Shintaro Morioka²、Nobuki Kamimura² (1.Institute for Planetary Materials, Okayama University、2.Graduate School of Engineering, Osaka University、3.Institute of Laser Engineering, Osaka University)

[PCG22-P05] Richtmyer-Meshkov instability in inhomogeneous density materials and its application to planetary science

*佐野孝好¹ (1.大阪大学レーザー科学研究所)

[PCG22-P06] Impact-induced dehydration reactions of Fe- and Al-hydrates as potential storage, carrier and source of water

*鳥羽瀬翼¹、関根利守¹、北原銀河²、徳田誠²、吉朝朗²、高藤誠²、真下茂²、川合伸明² (1.HPSTAR、2.熊本大学)

[PCG22-P07] Crystallization of amorphous MgSiO₃ by shock compression

*荒砂茜¹、奥野正幸¹、川合伸明² (1.金沢大学、2.熊本大学)

[PCG22-P08] First-principle study of the structural and electronic properties of N-doped MgAl₂O₄ spinel

*Chi Pui Tang¹、Pak Kin Leong¹、Toshimori Sekine^2,3 (1.State Key Laboratory of Lunar and Planetary Sciences, Macau University of Science and Technology、2.Center for High Pressure Science and Technology Advanced Research (HPSTAR) Shanghai Laboratory of HPSTAR, Shanghai, P.R. China、3.Graduate School of Engineering, Osaka University)

[PCG22-P09] Transparency of shock-compressed single crystal diamond

*片桐健登¹、尾崎典雅^1,2、宮西宏併²、梅田悠平¹、森岡信太郎¹、佐野考好²、兒玉了祐^1,2 (1.大阪大学、2.大阪大学　レーザー科学研究所)

[PCG22-P10] Pb-Pb dating of the NWA 7203 angrite and relationship to its shock metamorphism

*林秀幸¹、三河内岳¹、佐野有司¹、Bizzarro Martin² (1.東京大学、2.コペンハーゲン大学)

[PCG22-P11] 高強度レーザーを用いた衝撃試SiO₂の高圧相回収

*近藤忠¹、廣本健吾¹、境家達弘¹、寺崎英紀¹、重森啓介²、弘中陽一郎² (1.大阪大学大学院理学研究科宇宙地球科学専攻、2.大阪大学レーザー科学研究所)

[PCG22-P12] Hugoniot measurement of calcite under meteorite collision condition

*福井敬也¹、尾崎典雅^1,2、梅田悠平¹、宮西宏併³、片桐健登¹、森岡信太郎¹、佐野孝好³、兒玉了佑^1,2,3 (1.大阪大学大学院工学研究科、2.大阪大光科学センター、3.大阪大学レーザー科学研究所)

[PCG22-P13] Direct observation of the transformation toughening of tetragonal stabilized zirconia under shock deformation condition by ns time-resolved XRD.

*高木壮大^1,2、一柳光平^2,3、川合伸明⁴、深谷亮²、野澤俊介²、興野純¹、船守展正²、足立伸一² (1.筑波大学、2.高エネルギー加速器研究機構、3.自治医科大学、4.熊本大学)

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