Preparation and experimental characterization of glass-alumina functionally graded materials

被引：20

作者：

Cannillo, V ^{[1
]}

Manfredini, T ^{[1
]}

Siligardi, C ^{[1
]}

Sola, A ^{[1
]}

机构：

[1] Univ Modena, Dipartimento Ingn Mat & Ambiente, I-41100 Modena, Italy

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2006年 / 26卷 / 06期

关键词：

Al2O3; glass; FGM; microstructure-final;

D O I：

10.1016/j.jeurceramsoc.2004.12.017

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：

This work aims at investigating the effects of the processing conditions on the final microstructure of glass-alumina functionally graded materials (FGMs). The ingredient materials, i.e. a polycrystalline sintered alumina and a CaO-ZrO2-SiO2 glass, were accurately characterized, since their mechanical and thermal properties may deeply influence the fabricating process and the overall FGM behaviour. The functionally graded materials were obtained by means of percolation of the molten glass into the alumina substrate. Two types of samples were considered-the "Bulk" FGMs, produced starting from a glass bulk, and the "Powder" FGMs, produced starting from a glass powder; in both cases four different heating cycles were attempted. The functionally graded materials were analysed using a SEM-EDS and a X-ray diffractometer. Great attention was devoted to the resulting microstructure; moreover the depth of penetration was measured and related to the fabricating parameters, such as time and temperature. (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：993 / 1001

页数：9

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