ISSN:
1013-9826
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 preparation process of alumina-spinel slurries by using micro-sized alumina-spinelmixtures as raw materials was investigated. The slurries with solids content of 62 vol% and viscosity of 0.3Pa·s were prepared by adding self-made dispersant ANSP which was a mixture of AN-2000 and STP inmass ratio of 4 to 1. The alumina-spinel refractory was fabricated from the slurries by gelcasting process.The dry parts containing micro-sized alumina-spinel powders with 3.57wt% gel have the highest bendingstrength of 29.8 MPa and 17.6 MPa with 15:1 AM-MBAM and 4:1 MAM-MBAM respectively. Thebending strength enhanced with the increase of reaction temperature. For example, to the 15 wt% 15:1AM-MBAM gel premix, the bending strength of the parts gelled at 25°C and 55°C were 27.3 MPa and32.4 MPa respectively. The bending strength also increased with the rising of the amount of monomer
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/56/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.368-372.1149.pdf
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