Anisotropic grain growth in alpha-Fe2O3-doped alumina

被引：57

作者：

Tartaj, J ^{[1
]}

Messing, GL ^{[1
]}

机构：

[1] CSIC,INST CERAM & VIDRIO,DEPT ELECTROCERAM,ARGANDA 28500,MADRID,SPAIN

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 1997年 / 17卷 / 05期

关键词：

D O I：

10.1016/S0955-2219(96)00091-X

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Addition of alpha-Fe2O3 seen particles to alkoxide-derived boehmite sols results in the development of a highly uniform ann dense microstructure at 1300 degrees C. Higher temperature treatments promote anisotropic grain growth of lath-like alpha-Al2O3 grains. The fundamental explanation for this is basically attributed to the presence of Fe2+ significantly improving the mass transport. By controlling time, sintering temperature and atmosphere conditions, it is possible to obtain an appropriate microstructural development that may lead to a new class of tough ceramic materials. (C) 1997 Elsevier Science Limited. All rights reserved.

引用

页码：719 / 725

页数：7

共 22 条

[1] SOLIDUS, SUBSOLIDUS, AND SUBDISSOCIATION PHASE EQUILIBRIA IN THE SYSTEM FE-AL-O [J].

ATLAS, LM ;

SUMIDA, WK .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1958, 41 (05) :150-160

[2]

BENNISON SJ, 1983, J AM CERAM SOC, V66, pC90, DOI 10.1111/j.1151-2916.1983.tb10065.x

[3] SINTERING AND GRAIN GROWTH OF ALPHA-ALUMINA [J].

CAHOON, HP ;

CHRISTENSEN, CJ .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1956, 39 (10) :337-344

[4]

DORRE E, 1984, MAT RES ENG, P16

[5]

Dufek G., 1976, BER DT KERAM GES, V53, P336

[6] HIGH-TEMPERATURE DEFECT STRUCTURE OF IRON-DOPED ALPHA-ALUMINA [J].

DUTT, BV ;

KROGER, FA .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1975, 58 (11-1) :474-476

[7]

GORDON RS, 1984, DEFORMATION CERAMICS, V2, P341

[8]

GORDON RS, 1984, ADV CERAM, V10, P418

[9] EFFECTS OF CHEMICAL INHOMOGENEITIES ON GRAIN-GROWTH AND MICROSTRUCTURE IN AL2O3 [J].

HANDWERKER, CA ;

MORRIS, PA ;

COBLE, RL .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1989, 72 (01) :130-136

[10] ANISOTROPIC GRAIN-GROWTH IN TIO2-DOPED ALUMINA [J].

HORN, DS ;

MESSING, GL .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1995, 195 (1-2) :169-178

← 1 2 3 →