Synthesis of nanocrystalline α-Al2O3 by ultrasonic flame pyrolysis

被引：24

作者：

Varatharajan, K ^{[1
]}

Dash, S

Arunkumar, A

Nithya, R

Tyagi, AK

Raj, B

机构：

[1] Indira Gandhi Ctr Atom Res, Met & Mat Grp, Kalpakkam 603102, Tamil Nadu, India

[2] Indian Inst Sci, Dept Mech Engn, Bangalore 560012, Karnataka, India

来源：

MATERIALS RESEARCH BULLETIN | 2003年 / 38卷 / 04期

关键词：

nanostructures and oxides; vapor deposition; electron microscopy; X-ray diffraction;

D O I：

10.1016/S0025-5408(03)00026-6

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Nanocrystalline alpha-alumina was synthesized in an indigenously built ultrasonic flame pyrolysis (UFP) setup. This paper describes the technical aspects of the apparatus and particle formation in the flame. Ultrasonically atomized aluminium nitrate dissolved in methanol-water mixture was pyrolyzed in an oxy-propane flame for yielding nanocrystalline alpha-alumina. The formation of nanophase alumina was confirmed by powder XRD analysis. Scanning electron microscopy (SEM) analysis was carried out to study particulate morphology. (C) 2003 Elsevier Science Ltd. All rights reserved.

引用

页码：577 / 583

页数：7

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