Microstructural evolution of some MgO-TiO2 and MgO-Al2O3 powder mixtures during high-energy ball milling and post-annealing studied by X-ray diffraction

被引：32

作者：

Stubicar, N

Tonejc, A

Stubicar, M

机构：

[1] Univ Zagreb, Fac Sci, Dept Phys, HR-10002 Zagreb, Croatia

[2] Univ Zagreb, Fac Sci, Dept Chem, HR-10001 Zagreb, Croatia

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2004年 / 370卷 / 1-2期

关键词：

preparation of insulators : MgTiO3; Mg2TiO4 and MgAl2O4 single-phase powders; MgO-TiO2 and MgO-Al2O3 powder mixtures; high-energy ball milling; post-anneal processing; X-ray diffraction method; oxide materials; insulators; mechanochemical processing; X-ray diffraction;

D O I：

10.1016/j.jallcom.2003.09.026

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

High-energy dry ball-mill and post-anneal processing were applied to synthesize MgTiO3 and Mg2TiO4 single crystalline phases from the predetermined compositions of MgO-TiO2 powder mixtures. Also, the experiments were performed to show that it is possible to prepare MgAl2O4 single crystalline phase from the predetermined composition of MgO-AI(2)O(3) powder mixture only by employing high-energy dry ball milling, i.e. without post-annealing the milled samples. In contrast, fully developed single crystalline powders of MgTiO3 and Mg2TiO4 were obtained after post-annealing the milled samples for 1 h at 900 and 1200degreesC, respectively. (C) 2003 Elsevier B.V All rights reserved.

引用

页码：296 / 301

页数：6

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