Processing of stepped-density alumina via gelcasting and reaction bonding techniques

被引：11

作者：

Montgomery, JK ^{[1
]}

Faber, KT ^{[1
]}

机构：

[1] Northwestern Univ, Dept Mat Sci & Engn, Robert R McCormick Sch Engn & Appl Sci, Evanston, IL 60208 USA

来源：

SCRIPTA MATERIALIA | 2000年 / 42卷 / 03期

基金：

美国国家科学基金会;

关键词：

functionally graded materials; structural ceramics; casting; reaction bonded;

D O I：

10.1016/S1359-6462(99)00342-5

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Stepped-density all-alumina bodies can be produced by gelcasting reaction bonded Al2O3 with pure alumina. Predictions of the volume change and final stepped density can be made by understanding how specimens of alumina or Al+Al2O3 behave individually. By tailoring the Al2O3 particle size and Al volume fraction, the volume change of each layer can be matched, resulting in a density step and no macroscopic cracking.

引用

页码：283 / 287

页数：5

共 6 条

[1]

*ASTM, 1982, 37372 ASTM C

[2]

CLAUSSEN N, 1990, CERAM ENG SCI PROC, V11, P806, DOI 10.1002/9780470313008.ch22

[3]

JANNEY MA, 1997, COMMUNICATION

[4] Concept of functionally graded materials for advanced thermal barrier coating applications [J].

Lee, WY ;

Stinton, DP ;

Berndt, CC ;

Erdogan, F ;

Lee, YD ;

Mutasim, Z .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1996, 79 (12) :3003-3012

[5]

Rahaman M.N., 1995, Ceramic Processing and Sintering

[6] GELCASTING OF ALUMINA [J].

YOUNG, AC ;

OMATETE, OO ;

JANNEY, MA ;

MENCHHOFER, PA .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1991, 74 (03) :612-618

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