Structural Analysis of the Fracture Surface of a Heterogeneous Body (Quartz Sandstone)

被引：1

作者：

Vettegren', V. I. ^{[1
]}

Mamalimov, R. I. ^{[1
]}

Kulik, V. B. ^{[1
]}

Patonin, A. V. ^{[2
]}

Ponomarev, A. V. ^{[3
]}

Sobolev, G. A. ^{[3
]}

Shcherbakov, I. P. ^{[1
]}

机构：

[1] Russian Acad Sci, Ioffe Inst, St Petersburg 194021, Russia

[2] Russian Acad Sci, Schmidt Inst Phys Earth, Borok Geophys Observ, Borok, Yaroslavl Oblas, Russia

[3] Russian Acad Sci, Schmidt Inst Phys Earth, Moscow 123242, Russia

来源：

PHYSICS OF THE SOLID STATE | 2017年 / 59卷 / 07期

基金：

俄罗斯基础研究基金会;

关键词：

CATHODOLUMINESCENCE; SPECTROSCOPY; REFLECTANCE; FRICTION; SPECTRA; ALPHA; BANDS;

D O I：

10.1134/S1063783417070307

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The structure of surface layers of quartz sandstone with a thickness of similar to 1 mu m before and after destruction by a compressive stress is studied by methods of infrared, photoluminescent, and Raman spectroscopy. Before destruction, this layer contained quartz grains cemented with montmorrillonite and kaolinite. The grains are covered with a thin water layer and have crystallographic defects: Si-O-, self-trapped excitons, AlOH and LiOH compounds, [AlO4](-) centers, etc. The destructed surface contains separate quartz grains with sizes of similar to 2 mu m and a reduced defect concentration. It is assumed that the defects reduce the strength of quartz grains, which are destroyed in the first turn.

引用

页码：1340 / 1344

页数：5

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