Pore shrinkage and Ostwald ripening in metallic systems. Final report
Ostwald ripening is the phenomenon of coarsening with time of a phase dispersed on a substrate or within a crystalline or glassy matrix. The established theory of this phenomenon is due to Lifshitz and Slyozov and to Wagner, with a number of extensions. Prompted by the fact that a number of experimental details consistently disagree with specific predictions of this theory (LSW theory), Kuczynski began in the mid 1970's to examine other possible theoretical approaches to this particle coarsening problem. Thus, this project set out to derive the size distribution function of particles on a wholly different basis from that of LSW theory. In addition, it undertook to develop statistically very reliable experimental distributions against which the theories could be gauged. The basis for this new theoretical derivation (K-theory) is the principle of irreversible thermodynamics due to Prigogine, that a system in steady state exhibits a minimum rate of entropy production.
- Research Organization:
- Notre Dame Univ., IN (USA)
- DOE Contract Number:
- AC02-77ER04385
- OSTI ID:
- 5110275
- Report Number(s):
- DOE/ER/04385-6; COO-4385-6; ON: DE82021916
- Country of Publication:
- United States
- Language:
- English
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Pore shrinkage and Ostwald ripening in metallic systems. Progress report, July 1, 1978-June 30, 1979
Pore shrinkage and Ostwald ripening in metallic systems. Progress report, July 1, 1977--June 30, 1978