A semi infinite solid of aluminum is to be pulsed with a laser at the surface such that a temperature of 600C will be attained at a depth of 2 mm, 0 2 s after the pulse The solid is initially at 30C Calculate the strength of pulse required, expressed in MJ m2 ...

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A semi-infinite solid of aluminum is to be pulsed with a laser at the surface such that

Question:

A semi-infinite solid of aluminum is to be pulsed with a laser at the surface such that a temperature of 600ºC will be attained at a depth of 2 mm, 0.2 s after the pulse. The solid is initially at 30ºC. Calculate the strength of pulse required, expressed in MJ/m2.