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:
The presence of pores in ceramics is directly related to the chosen forming process. So, inthe starch consolidation method, the ceramics show, after burning, pores with morphology similarto that presented by this organic material. On the other hand, the increase in solid load leads up toalterations in dispersion viscosity, increasing the thermal stresses during drying and sinteringprocesses. In order to verify the solid percentage influence in ceramic final properties, samples wereprepared with silicon carbide in different compositions using or not starch as binder agent and poreforming element. The characterization of the ceramic pieces was performed by superficialroughness measurements, porosity besides by optical and scanning electron microscopy. The resultsshowed ceramics with SiC and starch presented physical and microscopic properties slightly higherin relation to those with only ceramic powder in their composition. The presence of organicmaterial, agglomerated and foam during the forming were essential for the final properties of thestudied samples
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/19/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.591-593.685.pdf
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