doiSerbia

Obtaining of dense and highly porous ceramic materials from metallurgical slag

Fidancevska E. (Faculty of Technology and Metallurgy, University St Ciril and Methodius, Skopje, Republic of Macedonia)
Mangutova B. (Faculty of Technology and Metallurgy, University St Ciril and Methodius, Skopje, Republic of Macedonia)
Milosevski D. (Faculty of Technology and Metallurgy, University St Ciril and Methodius, Skopje, Republic of Macedonia)
Milosevski M. (Faculty of Technology and Metallurgy, University St Ciril and Methodius, Skopje, Republic of Macedonia)
Bossert J. (Friedrich Schiller University, Institute of Materials Science and Technology, Jena, Germany)

Glass-ceramics in a dense and highly porous form can be obtained from metallurgical slag and waste glass of TV monitors. Using polyurethane foam as pore creator, a highly porous system with porosity of 65 ± 5 %, E-modulus and flexural strength of 8 ± 3 GPa and 13 ± 3.5 MPa respectively can be obtained. This porous material had durability (mass loss) of 0.03 % in 0.1 M HCl that is identical with the durability of a dense composite.

Keywords: waste, metallurgical slag, glass-ceramic, sintering, porosity