Texture analysis of a turbostratically disordered Ca-montmorillonite

被引：56

作者：

Lutterotti, Luca ^{[1
]}

Voltolini, Marco ^{[2
]}

Wenk, Hans-Rudolf ^{[2
]}

Bandyopadhyay, Kaushik ^{[3
]}

Vanorio, Tiziana ^{[3
]}

机构：

[1] Univ Trento, Dept Mat Engn & Ind Technol, I-38123 Trento, Italy

[2] Univ Calif Berkeley, Dept Earth & Planetary Sci, Berkeley, CA 94720 USA

[3] Stanford Univ, Dept Geophys, Stanford, CA 94305 USA

来源：

AMERICAN MINERALOGIST | 2010年 / 95卷 / 01期

基金：

美国国家科学基金会;

关键词：

Texture analysis; turbostratic disorder; Rietveld method; montmorillonite; synchrotron X-rays; RAY-DIFFRACTION PATTERN; PREFERRED ORIENTATION; ELECTRON-DIFFRACTION; CRYSTAL-STRUCTURE; SIMULATION; ANISOTROPY; STACKING; INTENSITIES; HYDROXIDE; STRAIN;

D O I：

10.2138/am.2010.3238

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

Turbostratic disorder, consisting in a disorder in which different layers have different rotations with respect to an axis, is commonly found in montmorillonite. The effect of this kind of disorder on diffraction profiles is significant and must be taken into account, especially in quantitative phase analysis. The effect of the turbostratic disorder in textured materials has never been investigated. In the present work, we have developed a strategy to perform quantitative texture analysis on turbostratically disordered Ca-montmorillonite aggregates that were uniaxially compressed. Synchrotron diffraction images were analyzed with a Rietveld method and disordered and ordered models are compared. The method proved to be reliable and ready for further applications.

引用

页码：98 / 103

页数：6

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