Effect of Calcination Temperature on the Alumina-Zirconia Nanostructures Prepared by Combustion Synthesis

被引：9

作者：

Ayoub, Z. Jafari ^{[1
]}

Tafreshi, M. Jafar ^{[1
]}

Fazli, M. ^{[2
]}

机构：

[1] Univ Semnan, Fac Phys, Semnan, Iran

[2] Univ Semnan, Fac Chem, Semnan, Iran

来源：

JOURNAL OF NANOSTRUCTURES | 2012年 / 2卷 / 04期

关键词：

Sol-gel; Autocombustion; Zirconia; Calcination; Nanostructures;

D O I：

10.7508/jns.2012.04.007

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

In this research, a sol gel autocaombustion route has been proposed to synthesize alumina-zirconia composite powders, using ammonium bicarbonate as a new fuel. Then the effect of calcination temperature on phase transformation and crystallite sizes was investigated. To characterize the products XRD, TEM and BET analyses were used. XRD patterns of as-synthesized powder and calcined powders at 1100 degrees C and 1200 degrees C showed t-ZrO2 phase with small crystallite sizes (<14 nm). As-synthesized powders were also sintered at 1300 degrees C and the particle sizes after calcination were 14.90 nm and 50 nm for ZrO2 and Al2O3 phases, respectively as calculated from XRD and the transformation of t-ZrO2 to m-ZrO2 started at 1300 degrees C. TEM micrograph of as-synthesized powder revealed nanosize spherical particles of about 8 nm. 2013 JNS All rights reserved

引用

页码：457 / 461

页数：5

共 13 条

[1] Mixture of fuels approach for the solution combustion synthesis of Al2O3-ZrO2 nanocomposite [J].

Aruna, ST ;

Rajam, KS .

MATERIALS RESEARCH BULLETIN, 2004, 39 (02) :157-167

[2] GRINDING OF SOL-GEL DERIVED ALUMINA-ZIRCONIA COMPOSITES [J].

BALASUBRAMANIAN, M ;

SORNAKUMAR, T ;

MALHOTRA, SK ;

GOKULARATHNAM, CV ;

KRISHNAMURTHY, R .

INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS, 1995, 13 (06) :359-363

[3] DEVELOPMENT OF NANO-COMPOSITE MICROSTRUCTURES IN ZRO2-AL2O3 VIA THE SOLUTION PRECURSOR METHOD [J].

BALMER, ML ;

LANGE, FF ;

JAYARAM, V ;

LEVI, CG .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1995, 78 (06) :1489-1494

[4] Enhanced low temperature toughness of Al2O3-ZrO2 nano/nano composites [J].

Bhaduri, S ;

Bhaduri, SB .

NANOSTRUCTURED MATERIALS, 1997, 8 (06) :755-763

[5] Alumina-zirconia-yttria nanocomposites prepared by solution combustion synthesis [J].

Biamino, S. ;

Fino, P. ;

Pavese, M. ;

Badini, C. .

CERAMICS INTERNATIONAL, 2006, 32 (05) :509-513

[6] Effect of different fuels on the alumina-zirconia nanopowder synthesized by sol-gel autocombustion method [J].

Chandradass, J. ;

Jun, Byunsei ;

Bae, Dong-sik .

JOURNAL OF NON-CRYSTALLINE SOLIDS, 2008, 354 (26) :3085-3087

[7] Synthesis and characterization of zirconia doped alumina nanopowder by citrate-nitrate process [J].

Chandradass, J. ;

Yoon, Jae Hong ;

Bae, Dong-Sik .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2008, 473 (1-2) :360-364

[8] Nano α-Al2O3-t-ZrO2 composite powders by calcining an emulsion precursor at 1100 °C [J].

Chandradass, J. ;

Bae, Dong-sik .

JOURNAL OF ALLOYS AND COMPOUNDS, 2009, 469 (1-2) :L10-L12

[9] Synthesis and microstructural characterization of α-Al2O3-t-ZrO2 composite powders prepared by combustion technique [J].

Deb, A. K. ;

Chatterjee, P. ;

Sen Gupta, S. P. .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2007, 459 (1-2) :124-131

[10] CRITICAL MICROSTRUCTURES FOR MICROCRACKING IN AL2O3-ZRO2 COMPOSITES [J].

GREEN, DJ .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1982, 65 (12) :610-614

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