In situ X-ray diffraction study of the phase boundary between diaspore and ?-AlOOH

被引：1

作者：

Suzuki, Akio ^{[1
]}

机构：

[1] Tohoku Univ, Dept Earth Sci, Grad Sch Sci, Sendai, Miyagi 9808578, Japan

来源：

JOURNAL OF MINERALOGICAL AND PETROLOGICAL SCIENCES | 2022年 / 117卷 / 01期

关键词：

Aluminum oxyhydroxide; Diaspore; 8-AlOOH; Phase boundary; High pressure; HIGH-PRESSURE; STABILITY LIMITS; WATER TRANSPORT; HYDROUS PHASE; DELTA-ALOOH; LAWSONITE; ALSIO3OH; FIELD;

D O I：

10.2465/jmps.211215

中图分类号：

P57 [矿物学];

学科分类号：

070901 ;

摘要：

To determine the phase boundary between diaspore (a???AlOOH) and 8???AlOOH, in situ X???ray diffraction experiments were carried out using a multi???anvil high???pressure apparatus and synchrotron X???ray. The stability of each phase was determined by observing the change in powder X???ray diffraction patterns. The equilibrium phase boundary is described by the formula P (GPa) = 12.2 (??4.9) + 0.0027 (??0.0044) ?? T (K). The boundary determined in this study is located at a lower pressure than that estimated by previous quenching experimental studies.

引用

页数：5

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