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Thermal spelling: The breaking or cracking or peeling off the refractory is known as spelling. A good refractory must show a good resistance to thermal spelling. Thermal spelling can be decreased by minimizing the development of internal stress by:
(1) Using refractory with high porosity, good thermal conductivity and low coefficient of expansion.
(2) Avoiding sudden temperature changes.
(3) Proper furnace design
Malleability of a metal is the Property by which a material can be cold-worked
If the atmosphere had a constant temperature of 20C and constant density, how high would the air extend above sea level? Would Mt. Everest, and 10km in elevation, protrude beyond
petrolium
Q. How can you measure the refractories and refractoriness under load of a refractory material?
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understanding the concept of entrepreneurship and the process of innovation, come out with one assignment per group the used of materials in industry.
The over all diffinition of stripping
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