Grain size versus densification

Figure 11.4. (a) Relative densification and coarsening rates versus grain size and (b) microstructure development for the case where densification is controlled by lattice diffusion and grain growth by surface diffusion. ... 

It is useful to plot the resultant behavior in what is known as grain size versus density trajectories, such as those shown in Fig. 10.5a and b. Typically, a material will follow the path denoted by curve v, where both densification... 

Figure 10.5 (a) Grain size versus density trajectories for densification (curve z) and coarsening (curve x). Curve y shows a powder for which both coarsening and densification are occurring simultaneously, (h) Alternate scheme to represent data in terms of grain and pore size trajectories. 

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