Scientific Research Publishing

Read  full  paper  at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=20204#.VNCBOSzQrzE Author(s)   Musa Karakus , Robert E. Moore Affiliation(s) University of Missouri-Rolla Department of Ceramic Engineering Rolla, MO 65401 . University of Missouri-Rolla Department of Ceramic Engineering Rolla, MO 65401 . ABSTRACT Refractories are ceramic materials possessing high thermal shock properties and slag corrosion resistance, as well as creep resistance at high temperatures. They are used in large quantities in steel making furnaces, metal smelting vessels, and glass melting tanks, and are made from very refractory minerals such as lime, periclase, corundum, spinel, and zirconia. Slags are residual vitreous materials generated during steel refining processes. They cover a wide range of compositions and may contain pure oxides, silicates, and sulfides as well as fluoride phases, depending on the melting and smelting processes....

Read full paper at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=50945#.VFCE0FfHRK0 Author(s) Jacek Szczerba * , Ilona Jastrzębska , Zbigniew Pędzich , Mirosław M. Bućko Affiliation(s) Department of Materials Science and Ceramics, AGH University of Science and Technology, Kraków, Poland . ABSTRACT This paper investigates the new phases formation in the magnesia-spinel, magnesia-zirconia-cal- cia and magnesia-hercynite refractory products as a result of their reaction with kiln hot meal and cement clinker (both rich in SO3 and Cl ions) at the temperature range 1200 ° C - 1450?C. The labor- atory corrosion tests were conducted by means of pulverous method and by special coating test. The phase id...

Read full paper at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=50943#.VFCEzVfHRK0 Author(s)    Manas Kamal Haldar * , Chandrima Ghosh , Arup Ghosh Affiliation(s) Refractories Division, CSIR-Central Glass & Ceramic Research Institute, Kolkata, India . ABSTRACT The present work intends to study the properties of magnesia based refractory aggregates developed from Indian magnesite by changing lime/silica ratio. The material has been sintered in the temperature range of 1550C - 1700C. The sintered samples are characterized in terms of bulk density, apparent porosity, true density, percentage densification, mechanical, thermo-mechanical properties like cold modulus of rupture, hot modul...