C-Depth Method to Determine Diffusion Coefficient and Partition Coefficient of PCB in Building Materials

2015 ◽  
Vol 49 (20) ◽  
pp. 12112-12119 ◽  
Author(s):  
Cong Liu ◽  
Barbara Kolarik ◽  
Lars Gunnarsen ◽  
Yinping Zhang
Keyword(s):  
Diffusion Coefficient ◽  
Partition Coefficient ◽  
Building Materials ◽  
Determine Diffusion Coefficient

scholarly journals Orientation and Velocity Dependence of the Nonequilibrium Partition Coefficient

1995 ◽  
Vol 398 ◽  
Author(s):  
K.M. Beatty ◽  
K.A. Jackson
Keyword(s):  
Monte Carlo ◽  
Diffusion Coefficient ◽  
Partition Coefficient ◽  
Interface Velocity ◽  
Velocity Dependence ◽  
Step Velocity ◽  
Equilibrium Partition ◽  
Equilibrium Partition Coefficient ◽  
Solid Liquid Interface ◽  
Solid Liquid

ABSTRACTMonte Carlo simulations based on a Spin-1 Ising Model for binary alloys have been used to investigate the non-equilibrium partition coefficient (kneq ) as a function of solid-liquid interface velocity and orientation. In simulations of Si with a second component kneq is greater in the [111] direction than the [100] direction in agreement with experimental results reported by Aziz et al. The simulated partition coefficient scales with the square of the step velocity divided by the diffusion coefficient of the secondary component in the liquid.

scholarly journals Role of Time Relaxation in a One-Dimensional Diffusion-Advection Model of Water and Salt Transport

2015 ◽  
Vol 2015 ◽  
pp. 1-6 ◽  
Author(s):  
Igor Medved’ ◽  
Robert Černý
Keyword(s):  
Diffusion Coefficient ◽  
Structural Damage ◽  
Building Materials ◽  
Chloride Transport ◽  
Salt Transport ◽  
One Dimensional ◽  
Advection Diffusion ◽  
Dimensional Diffusion ◽  
Lime Plaster

The transport of salt, necessarily coupled with the transport of water, through porous building materials may heavily limit their durability due to possible deterioration and structural damage. Usually, the binding of salt to the pore walls is assumed to occur instantly, as soon as the salt is transported by water to a given position. We consider the advection-diffusion model of the transport and generalize it to include possible delays in the binding. Applying the Boltzmann-Matano method, we calculate the diffusion coefficient of the salt in dependence on the salt concentration and show that it increases with the rate of binding. We apply our results to an example of the chloride transport in a lime plaster.

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