X-ray diffraction analysis for isothermal annealed powder Mg(OH)2

被引：5

作者：

Ranaivosoloarimanana, A. ^{[1
]}

Quiniou, T. ^{[1
]}

Meyer, M. ^{[1
]}

Boyer, J. M. ^{[1
]}

Rocca, F. ^{[1
]}

机构：

[1] Univ Nouvelle Caledonie, PPME EA 3325, Noumea, New Caledonia

来源：

PHYSICA B-CONDENSED MATTER | 2009年 / 404卷 / 20期

关键词：

Magnesium hydroxide; Powder X-ray diffraction; Kinetic; Thermal decomposition; 100% approach; THERMAL-DECOMPOSITION; KINETIC-ANALYSIS; MAGNESIUM;

D O I：

10.1016/j.physb.2009.06.043

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

In this paper, we use an XRD-based 100% approach method to quantify the activity evolution of phase transformation from annealed powder Mg(OH)(2) to MgO. The sample is chemically synthesized. The isothermal phase transformation is carried out between 300 and 310 degrees C. The ratio of reacted magnesium hydroxide is applied and compared with different existing models. The Avrami model A(n) appears to be the most close-fitting. An order of reaction between 1.5 and 2 is observed that it could be considered as a complex combination of different phenomenon, for which we test different models. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：3655 / 3661

页数：7

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