Materials Exam 2 questions and
answers graded A+
concentration gradient - ANS ✔slope at a particular point on a concentration curve.
{ dC/dX }
concentration profile - ANS ✔curve of the concentration v. position graph
diffusion - ANS ✔stepwise mass transfer in solids
diffusivity - ANS ✔Measure of the capability to be diffused or allow diffusion
self-diffusion - ANS ✔One composition moving through itself
steady state diffusion - ANS ✔Does not change over time, "linear"
engineering normal strain - ANS ✔{ ε = (li-lo)/lo }* Temporary or permanent change in length of
specimen [mm-mm or in-in]
engineering normal stress - ANS ✔{ σ = F/Ao }* Force per area in a controlled setup
shear stress - ANS ✔stress is defined as parallel along upper and lower faces of each side
normal stress - ANS ✔stress is defined perpendicular to the cross-sectional area
answers graded A+
concentration gradient - ANS ✔slope at a particular point on a concentration curve.
{ dC/dX }
concentration profile - ANS ✔curve of the concentration v. position graph
diffusion - ANS ✔stepwise mass transfer in solids
diffusivity - ANS ✔Measure of the capability to be diffused or allow diffusion
self-diffusion - ANS ✔One composition moving through itself
steady state diffusion - ANS ✔Does not change over time, "linear"
engineering normal strain - ANS ✔{ ε = (li-lo)/lo }* Temporary or permanent change in length of
specimen [mm-mm or in-in]
engineering normal stress - ANS ✔{ σ = F/Ao }* Force per area in a controlled setup
shear stress - ANS ✔stress is defined as parallel along upper and lower faces of each side
normal stress - ANS ✔stress is defined perpendicular to the cross-sectional area