Processing and properties of cordierite-silica bonded porous SiC ceramics

被引：26

作者：

Baitalik, Sanchita ^{[1
]}

Kayal, Nijhuma ^{[1
]}

机构：

[1] Cent Glass & Ceram Res Inst, CSIR, 196 Raja SC Mullick Rd, Kolkata 700032, India

来源：

CERAMICS INTERNATIONAL | 2017年 / 43卷 / 17期

关键词：

Sol-gel processes; Cordierite; Porosity; Corrosion; Mechanical properties; HOT GAS FILTER; SOL-GEL ROUTE; CARBIDE CERAMICS; MECHANICAL-PROPERTIES; MEMBRANE SUPPORTS; FABRICATION; FILTRATION; GLASS; CRYSTALLIZATION; BEHAVIOR;

D O I：

10.1016/j.ceramint.2017.07.196

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-silica bonded porous SiC ceramics were fabricated by infiltrating a porous powder compact of SiC with cordierite sol followed by sintering at 1300-1400 degrees C in air. The porosity, average pore diameter and flexural strength of the ceramics varied 30-36 vol%, similar to 4-22 pm and similar to 13-38 MPa respectively with variation of sintering temperature and SiC particle sizes. In the final ceramics SiC particles were bonded by the oxidation derived SiO2 and sol-gel derived cordierite. The corrosion behaviour of sintered SiC ceramics was studied in acidic and alkaline medium. The porous SiC ceramics were observed to exhibit better corrosion resistance in acid solution.

引用

页码：14683 / 14692

页数：10

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