Askmemetallurgy Latest Questions
During heat treatment of a cold worked metal, recrystallization is 20% complete after 100s. The transformation (in %) in 400s is _____(answer up to two decimal places) (Assume Avrami constant, n=2)
During heat treatment of a cold worked metal, recrystallization is 20% complete after 100s. The transformation (in %) in 400s is _____(answer up to two decimal places)
(Assume Avrami constant, n=2)
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For an intrinsic semiconductor, the room temperature electrical conductivity is 10-6 Ω-1m-1. If the electron and hole mobilities are 0.75 and 0.06 m2V-1s-1 respectively, the intrinsic carrier concentration (per m3) at room temperature is: (A) 1 × 1012 (B) 7 ×1012 ...Read more
For an intrinsic semiconductor, the room temperature electrical conductivity is 10-6 Ω-1m-1. If the electron and hole mobilities are 0.75 and 0.06 m2V-1s-1 respectively, the intrinsic carrier concentration (per m3) at room temperature is:
(A) 1 × 1012 (B) 7 ×1012 (C) 3 ×1012 (D) 1.1 ×1014
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For homogenous nucleation of solid in liquid of a pure metal, the critical edge length (in nm) of a cube shaped nucleus is ______. (answer up to two decimal places) Given surface energy γ=0.177 Jm-2 ; change in volume free energy ...Read more
For homogenous nucleation of solid in liquid of a pure metal, the critical edge length (in nm) of a cube shaped nucleus is ______. (answer up to two decimal places)
Given surface energy γ=0.177 Jm-2 ; change in volume free energy ΔGv = -2.8 × 108 Jm-3)
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