Microstructural and Electrical Properties of Cordierite-based Ceramics Obtained After Two-step Sintering Technique

被引：15

作者：

Obradovic, Nina ^{[1
]}

Filipovic, Suzana ^{[1
]}

Dordevic, Natasa ^{[2
]}

Kosanovic, Darko ^{[1
]}

Pavlovic, Vladimir ^{[1
]}

Olcan, Dragan ^{[3
]}

Dordevic, Antonije ^{[3
,4
]}

Kachlik, Martin ^{[5
]}

Maca, Karel ^{[5
]}

机构：

[1] SASA, Inst Tech Sci, Belgrade 11000, Serbia

[2] Inst Technol Nucl & Other Raw Mineral Mat, Belgrade 11000, Serbia

[3] Univ Belgrade, Sch Elect Engn, Belgrade 11000, Serbia

[4] Serbian Acad Arts & Sci, Belgrade 11000, Serbia

[5] Brno Univ Technol, CEITEC BUT, Brno 61600, Czech Republic

来源：

SCIENCE OF SINTERING | 2016年 / 48卷 / 02期

关键词：

Mechanical activation; Two-step sintering; Microstructure; Electrical properties; Cordierite; BEHAVIOR;

D O I：

10.2298/SOS1602157O

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：

Cordierite-based ceramic materials are attracting much interest for their various applications in industry, for manufacturing multilayer circuit boards, catalytic converters, filters, thermal insulation, kiln furniture, components of portable electronic devices, etc. In order to reduce production costs and modify cordierite-based materials, mechanical activation can be used. In this study, microstructural and electrical properties of mechanically activated MgO-Al2O3-SiO2 system have been analyzed. The mixtures of MgO-Al2O3-SiO2 powders were mechanically activated in a planetary ball mill for the time periods from 0 to 160 min. Morphological investigations have been performed on the obtained powders. The effects of activation and two-step sintering process on microstructure were investigated by scanning electron microscopy (SEM). Electrical measurements showed variations of the dielectric constant (epsilon(r)) and loss tangent (tan delta) as a function of time of mechanical treatment.

引用

页码：157 / 165

页数：9

共 14 条

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