TITLE

Hugoniot measurement of alumina (Al[sub 2]O[sub 3]) single crystal in the pressure range up to over 100 GPa

AUTHOR(S)
Mashimo, Tsutomu; Tsumoto, Kazuyuki; Noguchi, Yuichi; Fukuoka, Kiyoto; Syono, Yasuhiko
PUB. DATE
April 2000
SOURCE
AIP Conference Proceedings;2000, Vol. 505 Issue 1, p101
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A high-pressure phase transition of Al[SUB2]O[SUB3] from the corundum structure to the Rh[SUB2]O[SUB3] (II) structure at over 70 GPa has been theoretically predicted, while sufficient experimental evidences have not been reported. In this study, the Hugoniot-measurement experiments were performed on a corundum-structure Al[SUB2]O[SUB3] single crystal to obtain the informations about the high-pressure polymorph. The Hugoniot parameters were measured by the inclined-mirror method in the pressure range up to over 100 GPa. A possible kink due to phase transition was observed on the inclined-mirror images in the pressure range higher than 70 GPa.
ACCESSION #
5985643

 

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