A study of transient particle coarsening

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

DOI:https://doi.org/10.2172/7140655· OSTI ID:7140655

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: DOE; USDOE, Washington, DC (United States)
• DOE Contract Number: FG06-91ER45454
• OSTI ID: 7140655
• Report Number(s): DOE/ER/45454-T1; ON: DE93005676
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360102* -- Metals & Alloys-- Structure & Phase Studies
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
ALLOYS
CORRECTIONS
GRAIN GROWTH
KINETICS
MATHEMATICAL MODELS
NUCLEATION
PARTICLE SIZE
PRECIPITATION
SEPARATION PROCESSES
SIZE
TIME DEPENDENCE