Chemical Engineering :: Refractory Technology
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Refractoriness of a typical silica brick corresponds to Segar cone number, '32', which is equivalent to a temperature of __________ °C.
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Beryllia (which is used in making crucibles for melting uranium & thorium) is superior to alumina in all respects for high temperature (> 1900°C ) use, except
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An insulating refractory brick should have high porosity and low thermal conductivity. Which of the following is not used for inducing porosity in the insulating refractory bricks during its manufacture ?
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Firing of refractory brick is done to
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Thermal diffusivity of a refractory brick is high, when its __________ is high.
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High porosity refractory bricks have
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Vacuum steel degassing units are lined with
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Pyrometric cone equivalent (PCE) value (Segar cone) of 'superduty refractories' is more than 33 which corresponds to a temperature of __________ °C.
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Which is the stable form of silica below 870°C ?
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