Ostwald ripening liquid-phase sintering

Kaysser, W. A. and Petzow, G., Ostwald ripening and shrinkage during liquid phase sintering, Z. Metallkd., 76, 687-92, 1985. 

Nevertheless, the microstructure cannot be directly correlated to the initial /1-content in the starting powder. The experimentally determined particle density in sintered samples indicates that only a part of the initial /I particles are able to grow [283]. The number of growing /1-particles depends on a critical particle diameter dcrit (Fig. 18). Particles below dcrit will dissolve in the oxide nitride liquid during phase transformation and reprecipitate on the overcritical /1-particles according to an anisotropic Ostwald ripening process [284, 292, 293]. 

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