Influence of Metal Oxides Additives on the Porous Mullite Ceramics

被引：4

作者：

Mahnicka-Goremikina, Ludmila ^{[1
]}

Svinka, Ruta ^{[1
]}

Svinka, Visvaldis ^{[1
]}

机构：

[1] Riga Tech Univ, Inst Silicate Mat, Riga, Latvia

来源：

ENGINEERING MATERIALS & TRIBOLOGY XXII | 2014年 / 604卷

关键词：

mullite ceramics; porosity; metal oxide; zirconium dioxide; tungsten oxide; magnesia; thermal conductivity;

D O I：

10.4028/www.scientific.net/KEM.604.293

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The porous mullite ceramics doped with such metal oxides as ZrO2, WO3 and MgO in quantity of 5 wt% were prepared by slip casting method. The mullite phase was the main and dominant phase of ZrO2-, WO3- and MgO-doped samples, which were sintered at the temperatures of 1650 degrees C, 1500 degrees C, respectively. The ZrO2, WO3 and MgO had the positive effect on the increase of porosity and decrease of thermal conductivity of porous mullite ceramics and the degree of this effect was in the order of ZrO2<MgO<WO3.

引用

页码：293 / 296

页数：4

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