Effect of Milling Medium on Alumina Additivated with Niobia

被引：0

作者：

Trindade, Willian ^{[1
]}

Prado da Silva, Marcelo Henrique ^{[1
]}

Gomes, Alaelson Vieira ^{[1
]}

Matos Chagas, Carlos Frederico ^{[1
]}

Leme Louro, Luis Henrique ^{[1
]}

机构：

[1] Mil Inst Engn, BR-22290270 Rio De Janeiro, RJ, Brazil

来源：

BRAZILIAN CERAMIC CONFERENCE 57 | 2014年 / 798-799卷

关键词：

Alumina; Niobia; Ball Milling; Planetary Milling;

D O I：

10.4028/www.scientific.net/MSF.798-799.677

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：

Niobia has been successfully used as sintering additive to alumina in order to lower its sintering temperature. This effect can also be obtained by reducing the ceramic particle size. This work investigated the effect of the particle size on the ceramic final density of alumina with 4 wt% niobia. For that two milling media were used. The as- received powders were submitted to ball and planetary milling and then sintered at 1450 degrees C. The planetary milling medium was more efficient in reducing particle size when compared to ball milling. However, planetary milling caused significant contamination in the niobia powder, from the alumina balls used as milling agents. It forced composition balance in order to keep the original proposed formulation. The planetary milled sintered samples showed better densification and lower grain size in comparison with ball milled ones. It could be concluded that the milling medium choice directly affected both microstructure and properties of the sintered alumina with 4wt% of niobia.

引用

页码：677 / 681

页数：5

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[1] A study of the promoting effect of noble metal addition on niobia and niobia alumina catalysts
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[2] Effect of niobia as an additive in phosphate-bonded alumina
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[J]. MATERIALS RESEARCH BULLETIN, 1996, 31 (02) : 235 - 244
[3] Effect of niobia and alumina as support for Pt catalysts in the hydrogenolysis of glycerol
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Isoda, N.
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[4] EFFECT OF NIOBIA AND VANADIA ADDITIONS ON THE MECHANICAL-PROPERTIES OF ALUMINA
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[5] Ballistic behavior of alumina with niobia additions
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