Dear colleagues,
I would like to estimate the dislocation density in a fcc material via the Willianson and Smallman equation, which is g = (g_e*g_D)^0.5 = 2*(3^0.5)*(e^2)^0.5/(b*D) where g is the dislocation density, e^2 is the root-mean-square lattice microstrain, b is the Burgers vector and D is the crystallite size. In addition, g_e is the dislocation density estimated from the lattice microstrain and g_D the dislocation density estimated exclusively from the crystallite sizes. My question is: which are the individual expressions for g_e and g_D. I found in the literature, for example that g_D = 1/D^2, or that g_D = 3/D^2. I am not clear about this. Can anyone shed light on this issue?. Thanks in advance. Also, can anyone send me the pdf file of the original works of Willianson and Smallman published in Phy. Magazine. Thanks, Angel
