Structure refinement and thermal stability of gibbsite

被引：0
|
作者：
D. A. Ksenofontov
Yu. K. Kabalov
机构：
[1] Moscow State University,
来源：
Inorganic Materials | 2012年 / 48卷
关键词：
Unit Cell Parameter; Aluminum Hydroxide; Boehmite; Structure Refinement; Gibbsite;
D O I：
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中图分类号：
学科分类号：
摘要：
The crystal structure of gibbsite (aluminum hydroxide) has been refined by Rietveld powder diffraction analysis, and the thermal stability of the crystal structure of the mineral has been studied in detail by high-temperature X-ray diffraction. The X-ray diffraction data obtained in the temperature range from 25 to 300°C indicate that the crystal structure of gibbsite is stable up to 200–250°C. The unit-cell parameters of gibbsite increase with temperature. Above 200°C, the gibbsite to boehmite (AlO(OH)) phase transformation begins.
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页码：142 / 144
页数：2
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