Processing and properties of glass-bonded silicon carbide membrane supports
Porous SiC membrane supports were fabricated from SiC and glass frit at a temperature as low as 850°C in air by a simple pressing and heat-treatment process. The effects of the initial SiC particle size and frit content on the porosity, flexural strength, and air permeation of the membrane supports...
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Published in | Journal of the European Ceramic Society Vol. 37; no. 4; pp. 1225 - 1232 |
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Main Authors | , , |
Format | Journal Article |
Language | English |
Published |
Elsevier Ltd
01.04.2017
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Subjects | |
Online Access | Get full text |
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Summary: | Porous SiC membrane supports were fabricated from SiC and glass frit at a temperature as low as 850°C in air by a simple pressing and heat-treatment process. The effects of the initial SiC particle size and frit content on the porosity, flexural strength, and air permeation of the membrane supports were investigated. During heat-treatment, the glass frit transformed to a viscous glass phase, which acted as a bonding material between SiC particles and as a protecting layer for severe oxidation of SiC particles. The porosity of the porous SiC membrane supports could be controlled within a range of 37–46% with the present set of processing conditions. The typical flexural strength, permeability, and specific air flow rate of the porous membrane supports fabricated using 23μm SiC particles with 15wt% glass frit were 75MPa, 4.2×10−13m2, and 32.4L/min/cm2, respectively. |
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ISSN: | 0955-2219 1873-619X |
DOI: | 10.1016/j.jeurceramsoc.2016.11.019 |