USE OF KAOLIN PROCESSING WASTE FOR THE PRODUCTION OF MULLITE BODIES

被引：8

作者：

Brasileiro, M. I. ^{[1
]}

Menezes, R. R. ^{[2
]}

Farias, M. O.

Lira, H. L. ^{[2
]}

Neves, G. A. ^{[2
]}

Santana, L. N. L. ^{[2
]}

机构：

[1] Univ Fed Campina Grande, UFCG DEP PB, Dept Engn Proc, Aprigio Veloso 820, BR-58109970 Campina Grande, PB, Brazil

[2] Univ Fed Campina Grande, Univ Acad Engn Mat, Dept Engn Proc, Aprigio Veloso 820, BR-58109970 Campina Grande, PB, Brazil

来源：

ADVANCED POWDER TECHNOLOGY VI | 2008年 / 591-593卷

关键词：

kaolin waste; alumina; ball-clay; mullite; sintering;

D O I：

10.4028/www.scientific.net/MSF.591-593.799

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：

Mullite is a versatile material used in traditional and advanced ceramic, due to low thermal expansion, high thermal shock and creep resistance. The production of waste from ore industry is a problem that is increasing nowadays. The kaolin processing industry produces residue rich in Al2O3 and SiO2. These oxides are good precursors to produce mullite. The aim of this work is to use the residue from kaolin industry to produce mullite ceramic bodies. It was studied alumina, clay and residue from kaolin processing as raw materials. The material was dried and pressing in uniaxial press (30MPa). The samples were sintered at temperatures of 1450 degrees C, 1500 degrees C, 1550 degrees C and 1600 degrees C. The ceramic bodies were characterized by X-ray diffraction. The density was measured by Archimedes method and the flexural strength by the three point bending technique. The results showed that is possible to produce mullite with high amount of waste from kaolin processing.

引用

页码：799 / +

页数：2

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