Simulation study of effects of initial particle size distribution on dissolution

2009 ◽  
Vol 57 (2) ◽  
pp. 316-325 ◽  
Author(s):  
G. Wang ◽  
D.S. Xu ◽  
N. Ma ◽  
N. Zhou ◽  
E.J. Payton ◽  
...  
Keyword(s):  
Particle Size ◽  
Particle Size Distribution ◽  
Size Distribution ◽  
Simulation Study ◽  
Initial Particle ◽  
Initial Particle Size

scholarly journals Identification of the initial particle size distribution for coal combustion simulations

AIChE Journal ◽  
2019 ◽  
Vol 65 (8) ◽  
Author(s):  
Haoshu Shen ◽  
Yuxin Wu ◽  
Minmin Zhou ◽  
Sean T. Smith ◽  
Hai Zhang ◽  
...  
Keyword(s):  
Particle Size ◽  
Particle Size Distribution ◽  
Size Distribution ◽  
Coal Combustion ◽  
Initial Particle ◽  
Initial Particle Size

In situ quasi-elastic scattering characterization of particle size effects on the hydration of tricalcium silicate

2004 ◽  
Vol 19 (11) ◽  
pp. 3242-3254 ◽  
Author(s):  
A.J. Allen ◽  
J.C. McLaughlin ◽  
D.A. Neumann ◽  
R.A. Livingston
Keyword(s):  
Particle Size ◽  
Particle Size Distribution ◽  
Size Distribution ◽  
Tricalcium Silicate ◽  
Size Distributions ◽  
Particle Size Distributions ◽  
Hydration Time ◽  
Initial Particle ◽  
Initial Particle Size

The effects of different particle size distributions on the real-time hydration of tricalcium silicate cement paste were studied in situ by quasi-elastic neutron scattering. The changing state of water in the cement system was followed as a function both of cement hydration time and of temperature for different initial particle size distributions. It was found that the length of the initial, dormant, induction period, together with the kinetics of hydration product nucleation and growth, depends on the hydration temperature but not on the particle size distribution. However, initial particle size does affect the total amount of cement hydrated, with finer particle size producing more hydrated cement. Furthermore, the diffusion-limited rate of hydration at later hydration time is largely determined by the initial tricalcium silicate particle size distribution.

Effect of Initial Particle Size on Coarsening Kinetics of γ Prime Precipitate in Nickel-Based Superalloy - A Phase Field Study

2011 ◽  
Vol 117-119 ◽  
pp. 1834-1838
Author(s):  
Chang Bo Ke ◽  
Bao Zhong Xie
Keyword(s):  
Particle Size ◽  
Size Distribution ◽  
Phase Field ◽  
Precipitate Size ◽  
Initial Particle ◽  
Initial Particle Size ◽  
Initial Size ◽  
Gamma Prime ◽  
Coarsening Kinetics ◽  
Kinetics Of

The effect of initia gamma prime particle size on coarsening kinetics of gamma prime precipitates in Nickel-based superalloys has been studied by means of phase field method which takes into account the lattice misfit. The simulation shows that the gamma prime precipitate morphology at the late stage of coarsening is independent of initial particle size, and the rectangle-like precipitates dominate the matrix which is in good agreement with experimental studies. The coarsening exponent increases with initial size, while the coarsening rate constant exhibits no apparent regularity. Although the coarsening trend is independent of initial particle size, the precipitate size increases with initial size at a given aging time. Through precipitate size distribution calculation, it is found that the size distribution is fairly stable, which is not sensitive to the initial particle size.

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