Chemically, mullite refractories is

More Questions from Refractory Technology

• Which is the stable form of silica below 870°C?
• Firing of refractory brick is done to
• Maximum alumina content in high alumina refractory can be as high as __________ percent.
• Spalling of silica bricks occurs due to abrupt volume changes, when it is cooled below a temperature of __________ °C.
• Firing temperature of magnesite bricks is about __________ °C.
• Fireclay bricks are used in the
• Panel test determines the __________ of refractories.
• Vacuum steel degassing units are lined with
• Fusion point of a basic refractory material is
• Roof of a basic electric furnace is made of __________ bricks.

Discussion & Comments