Supermatrix S

• This improved matrix has been designed to significantly improve corrosion resistance.
• This development also brings secondary benefits, such as improved resistance to oxidation, erosion and can also contribute to reducing susceptibility to thermo-mechanical cracking.

• Supermatrix S is formulated to optimise the brick matrix additions to enhance slag anti-wetting characteristics.
• The combination of a modified distribution of magnesia size fractions and a careful selection of carbon additions result in products with a more uniform matrix and an overall tighter microstructure.
• This results in improved corrosion, oxidation resistance and helps reducing thermo-mechanical cracking`.

The matrix additions in Supermatrix S lower the expansion characteristics which can help reduce thermo-mechanical stresses and susceptibility to cracking

Standard grade

• Coarse MgO fractions expand into the matrix on heating but then shrink away on cooling breaking the carbon bond and creating channel porosity.
• Coarse particles will be susceptible to washing out into the slag as the matrix wears back increasing the rate of wear.

Supermatrix S grade

• The MgO and graphite size distribution in Supermatrix S is formulated to offer a tighter microstructure optimising the pore size distribution and reducing channel porosity formation.
• This results in improved slag resistance and less wash-out of MgO aggregates into the slag.

• Standard grade has been used in slag line (shown below on the left) and went out of productions for a slag line change after 41 heats

• Standard grade has been used in slag line (shown below on the left) and went out of productions for a slag line change after 41 heats