Biomedical Engineering Reference
In-Depth Information
13.8
Particle chain sintered with no reorientation. Gap between the
particles (
1) was filled by surface diffusion that has also roughened
the middle particle's surfaces (
►
2).
59
►
equilibrium configuration at which the driving force for local sintering is
zero. Grain growth, by coarsening, will perturb the equilibrium configura-
tion to reinitiate densification. In other words, when the coordination
number reaches a critical value, the pore is at equilibrium. The shrinkage of
the pore cannot progress until the equilibrium condition can be tipped in
