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A muffle furnace differs from a conventional furnace primarily in its heating mechanism and application. Unlike conventional furnaces, which directly expose materials to flames or combustion gases, a muffle furnace has a sealed chamber that isolates the sample from direct contact with heat sources. This ensures uniform heating and prevents contamination, making it ideal for high-temperature applications like ashing, sintering, and material testing. Conventional furnaces, on the other hand, are commonly used for large-scale heating and metalworking. Muffle furnaces offer precise temperature control and are widely used in laboratories and industrial research settings.
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