TEMPERATURE-INDUCED AMORPHIZATION OF SIO2 STISHOVITE

被引：33

作者：

GRIMSDITCH, M ^{[1
]}

POPOVA, S ^{[1
]}

BRAZHKIN, VV ^{[1
]}

VOLOSHIN, RN ^{[1
]}

机构：

[1] RUSSIAN ACAD SCI,INST HIGH PRESSURE PHYS,TROITSK 142092,RUSSIA

来源：

PHYSICAL REVIEW B | 1994年 / 50卷 / 17期

关键词：

D O I：

10.1103/PhysRevB.50.12984

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A Raman-scattering investigation of stishovite, a high-pressure crystalline polymorph of SiO2, shows that at around 650 °C it becomes amorphous. The amorphous material produced during the initial stages of amorphization is not identical to ordinary silica since it exhibits features of the high-pressure amorphous polymorph. Above 800 °C there is little remaining evidence of stishovite but the amorphous material has transformed to a state indistinguishable from that of silica. Annealing effects in densified silica are also presented and compared with the stishovite results. © 1994 The American Physical Society.

引用

页码：12984 / 12986

页数：3

共 32 条

[1]

ALVARENGA AD, 1992, HIGH TEMP HIGH PRESS, V24, P655

[2] ELASTIC INSTABILITY IN ALPHA-QUARTZ UNDER PRESSURE [J].

BINGGELI, N ;

CHELIKOWSKY, JR .

PHYSICAL REVIEW LETTERS, 1992, 69 (15) :2220-2223

[3] THE KINETICS OF THE TRANSITION OF THE METASTABLE PHASES OF SIO2, STISHOVITE AND COESITE TO THE AMORPHOUS STATE [J].

BRAZHKIN, VV ;

VOLOSHIN, RN ;

POPOVA, SV .

JOURNAL OF NON-CRYSTALLINE SOLIDS, 1991, 136 (03) :241-248

[4] COESITE AND STISHOVITE - STEPWISE REVERSAL TRANSFORMATIONS [J].

DACHILLE, F ;

ROY, R ;

ZETO, RJ .

SCIENCE, 1963, 140 (357) :991-&

[5] THE PRESSURE-INDUCED METALLIC AMORPHOUS STATE OF SNI4 .1. A NOVEL CRYSTAL-TO-AMORPHOUS TRANSITION STUDIED BY X-RAY-SCATTERING [J].

FUJII, Y ;

KOWAKA, M ;

ONODERA, A .

JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1985, 18 (04) :789-797

[6] POLYMORPHISM IN AMORPHOUS SIO2 [J].

GRIMSDITCH, M .

PHYSICAL REVIEW LETTERS, 1984, 52 (26) :2379-2381

[7]

GRIMSDITCH M, 1986, PHYS REV B, V34, P1444

[8] HIGH-PRESSURE CRYSTAL-CHEMISTRY AND AMORPHIZATION OF ALPHA-QUARTZ [J].

HAZEN, RM ;

FINGER, LW ;

HEMLEY, RJ ;

MAO, HK .

SOLID STATE COMMUNICATIONS, 1989, 72 (05) :507-511

[9] LATTICE-VIBRATIONS OF HIGH-PRESSURE SIO2 PHASES - RAMAN-SPECTRUM OF SYNTHETIC STISHOVITE [J].

HEMLEY, RJ ;

MAO, HK ;

BELL, PM ;

AKIMOTO, S .

PHYSICA B & C, 1986, 139 (1-3) :455-457

[10] PRESSURE-INDUCED AMORPHIZATION OF CRYSTALLINE SILICA [J].

HEMLEY, RJ ;

JEPHCOAT, AP ;

MAO, HK ;

MING, LC ;

MANGHNANI, MH .

NATURE, 1988, 334 (6177) :52-54

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