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:
Alkaline-earth metal oxides (MgO, CaO, SrO and BaO) were introduced to Na2O-B2O3-Al2O3-SiO2 vitrified bond, and their effects on the properties of the vitrified bond were investigated through themeasurements of refractoriness, fluidity and bending strength. The results showed the refractoriness ofthe vitrified bond was reduced and the fluidity of the bond increased with the addition of alkaline earthmetal oxides in the order of CaO〉SrO〉BaO〉MgO. When 2-10wt% MgO, CaO and BaO was added intothe bond respectively, the vitrified bond was relatively dense due to high viscosity, and the strength wasall improved to some extent. However, when more than 4wt% SrO was added, the strength decreasedsharply because of the deterioration of microstructure. It was concluded that the bending strength of thebond was affected by alkaline-earth metal oxides in the order of CaO〉MgO〉BaO〉SrO
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/56/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.368-372.1405.pdf
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