2013 Fiscal Year Final Research Report
Off-Hugoniot Measurement of Quartz at Extremely Hight Pressure
| Project/Area Number |
23540556
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Multi-year Fund |
|---|
| Section | 一般 |
|---|
| Research Field |
Petrology/Mineralogy/Science of ore deposit
|
|---|
| Research Institution | Osaka University |
|---|
Principal Investigator |
SANO Takayoshi 大阪大学, レーザーエネルギー学研究センタ, 助教 (80362606)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
OZAKI Norimasa 大阪大学, 大学院・工学研究科, 助教 (70432515)
|
|---|
| Project Period (FY) |
2011 – 2013
|
| Keywords | レーザー衝撃圧縮 / 高圧物性 / 状態方程式 |
|---|
| Research Abstract |
Properties of Sapphire at TPa regime are of great scientific interest. The EOS and conductivity of Sapphire at this condition are crucial to understand the interior structure of super-Earth exoplanets. Metallic transition of Sapphire is suggested to be similar to that of liquid Hydrogen (Mott-like transition). Then, we performed laser shock experiments on the Hugoniot measurements of Sapphire by
GEKKO system at Osaka University. Taking advantage of decaying shock feature, Hugoniot temperature and optical reflectivity were measured in a wide range of the pressure. The reflectivity increases gradually from around 0.6 TPa and reaches 15% at 1.3 TPa. The increase of the internal energy is observed at this regime, and the Hugoniot curve deviates from the isotherm. Obtained Hugoniot temperature shows little increase between 0.6 to 1 TPa. This trend cannot be seen in the SESAME EOS model and could be related to the dissociation of Sapphire.
|
-
-
[Journal Article] Hugoniot and mean ionization of laser-shocked Ge-doped plastic2013
Author(s)
G. Huser, N. Ozaki, T. Sano, Y. Sakawa, K. Miyanishi, G. Salin, Y. Asaumi, M. Kita, Y. Kondo, K., Nakatsuka, H. Uranishi, T. Yang, N. Yokoyama, D. Galmiche, and R. Kodama
-
Journal Title
Physics of Plasmas
Volume: vol.20
Pages: 122703(11)
Peer Reviewed
-
[Journal Article] シリコン内部を伝搬する衝撃波面の直接観測2012
Author(s)
横山尚也, 尾崎典雅, 佐野智一, 曽田智史, 木村友亮, 宮西宏併, 浅海雄人, 浦西宏幸, 佐野孝好, 坂和洋一, 廣瀬明夫, 兒玉了祐
-
Journal Title
プラズマ・核融合学会誌
Volume: vol.88
Pages: 249-250
Peer Reviewed
-
[Journal Article] ハイパワーレーザーで探る高エネルギー密度物質状態2012
Author(s)
尾崎典雅, G. Gregori, 真下茂, W. J. Nellis, 木村友亮, 宮西宏併, 犬伏雄一, A. Benuzzi-Mounaix, 佐野孝好, 佐野智一, 清水克哉, 兒玉了祐
-
Journal Title
レーザー学会第429 回研究会報告 : 大エネルギー高出力レーザーを利用した科学研究
Pages: 6
-
[Journal Article] レーザー衝撃波実験とその惑星科学応用2012
Author(s)
佐野孝好, 尾崎典雅, 木村友亮, 宮西宏併, 浅海雄人, 生駒大洋, 重森啓介, 境家達弘, 奥地拓生, 関根利守, 兒玉了祐
-
Journal Title
レーザー学会第429回研究会報告 : 大エネルギー高出力レーザーを利用した科学研究
Pages: 6
-
[Presentation] Hugoniot temperature measurements of Sapphire using laser-induced decaying shocks2013
Author(s)
T. Sano, N. Ozaki, T. Kimura, K. Miyanishi, R. Kodama, T. Tsuchiya, T. Sakaiya, K. Shigemori, T. Kadono, Y. Hironaka, M. Ikoma, T. Okuchi, and T. Sekine
Organizer
The 2013 Joint APS-SCCM/AIRAPT Conference
Place of Presentation
Seattle, USA
Year and Date
20130707-12
-
[Presentation] Hugoniot temperature measurements of Sapphire using laser-induced decaying shocks2013
Author(s)
T. Sano, N. Ozaki, T. Kimura, K. Miyanishi, R. Kodama, T. Tsuchiya, T. Sakaiya, K. Shigemori, T. Kadono, Y. Hironaka, M. Ikoma, T. Okuchi, and T. Sekine
Organizer
The 7th International workshop on Warm Dense Matter
Place of Presentation
Saint-Malo, France
Year and Date
20130623-26
-
-
-
[Presentation] レーザー衝撃波実験とその惑星科学応用2012
Author(s)
佐野孝好, 尾崎典雅, 木村友亮, 宮西宏併, 浅海雄人, 生駒大洋, 奥地拓生, 関根利守, 兒玉了祐
Organizer
レーザー学会第429回研究会 : 大エネルギー高出力レーザーを利用した科学研究
Place of Presentation
富士
Year and Date
20120931
-
-
-
-
-
-
-
