A study of transient particle coarsening. Annual performance report and planned research

Technical Report · Mon Oct 19 04:00:00 EDT 1992

DOI:https://doi.org/10.2172/10106672· OSTI ID:10106672

Hoyt, J J

Efforts were concentrated on numerically modeling the time-dependent particle coarsening (Ostwald ripening) process. Four models were included: Lifshsitz-Slyozov-Wagner, Brailsford and Wynblatt, Marqusee and Ross, and Marder. The simulations monitored the particle size distribution (PSD) as a function of time; initial PSDs were derived from classical nucleation theory. The ripening kinetics can be represented as a plot of the second moment of normalized PSD vs time. A geometric correction factor is discussed. Future research is planned on Al-Li.

• Research Organization: Washington State Univ., Pullman, WA (United States). Dept. of Mechanical and Materials Engineering
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: FG06-91ER45454
• OSTI ID: 10106672
• Report Number(s): DOE/ER/45454--T1; ON: DE93005676
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360102
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201
ALLOYS
CHEMICAL AND PHYSICOCHEMICAL PROPERTIES
CORRECTIONS
GRAIN GROWTH
KINETICS
MATHEMATICAL MODELS
NUCLEATION
PARTICLE SIZE
PRECIPITATION
STRUCTURE AND PHASE STUDIES
TIME DEPENDENCE