Low temperature synthesis of nanocrystalline α-Al2O3 by a tartaric acid gel method

被引：17

作者：

Gocmez, H. ^{[1
]}

Ozcan, O. ^{[1
]}

机构：

[1] Dumlupinar Univ, Fac Engn, Dept Ceram Engn, TR-43100 Kutahya, Turkey

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2008年 / 475卷 / 1-2期

关键词：

alpha-Al2O3; nanocrystals; sol-gel; tartaric acid;

D O I：

10.1016/j.msea.2006.12.147

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Nanocrystalline alumina was synthesized by a simple sol-gel method using aluminum nitrate in tartaric, oxalic and acetic acids mixed aqueous solutions. The alumina gel was successfully transferred to alpha-Al2O3 with this process after subsequent low temperature heat treatment. The prepared gel and powders were characterized by X-ray diffractometry (XRD), thermogravimetry-differential thermal analysis, scanning electron microscopy and transmission electron microscopy. The XRD analysis showed that the complete transformation from gamma-Al2O3 nanocrystalline to alpha-Al2O3 (37 nm) prepared in tartaric acid was observed at 925 degrees C. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：20 / 22

页数：3

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