ISSN:
1662-9752
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Porous plate with bimodal size distribution was prepared using the molten slag fromthe incinerator. The slag was pulverized to 1-10μm using a planetary ball mill. On heating thepellet formed with this powder, its relative density at 750°C and 800°C were 70% and 85%,respectively. At 750°C, each particle partially attached together at the contacted point. At800°C, however, all particles melted, coagulated together and increased their size. The slagpowder was granulated using a tumbling granulator, resulting granules of 0.5-5mm size. Thecompressive strength of the granule sintered at 750°C was 0.39 kgf. The density of the granuledecreased by ~60%. The sintered granules were mixed with a proper amount of glass powderand starch water, and the slurry was cast to a mold (φ80mmx10mm). After drying the cast plate,it was heated at 630°C. The density of the plate was 1.2 gcm-3, ~43% of original slag value. Thesound absorption coefficients of the plate were 0.02 and 0.4 at 200Hz and 1500Hz, respectively
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/18/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.569.289.pdf
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