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Porosity–Strength Correlations in Ceramic Raschig Ring: Effects of Sintering Temperature and Water Content
Author(s) -
Salehi Mehdi,
Salem Amin
Publication year - 2010
Publication title -
international journal of applied ceramic technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 57
eISSN - 1744-7402
pISSN - 1546-542X
DOI - 10.1111/j.1744-7402.2009.02383.x
Subject(s) - materials science , raschig ring , porosity , ceramic , sintering , composite material , water content , compressive strength , packed bed , geotechnical engineering , chemistry , chromatography , engineering
The relationship between compressive strength and porosity of extruded ceramic Raschig ring has been investigated. First, the experiments have been carried out at different soaking temperatures to obtain optimum condition, reaching minimum total porosity and maximum strength. Second, in order to compare the effect of powder moisture on strength, the specimens were extruded with different water content. The dried specimens were sintered at optimum temperature according to first step result. In conclusion the maximum strength was achieved when the ceramic packings were shaped by 20–25 wt% water content and sintered at 1200°C.