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Inter-diffusion between two pure metal
Posted 9 mars 2016, 12:04 UTC−5 Version 5.1, Version 5.2 3 Replies
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Hallo,
I am pretty new in COMSOL and trying to simulate inter-diffusion between two pure metal (Cu and Sn). I made a simple model in comsol but not sure i considered the right initial condition. I attached also an image.
I put 2 diffusion coefficient for 2 pure metal and want to see how 1 metal diffuse into other one. Here i considered (Cu) is diffusing into (Sn), so (Sn) will be consumed over the time.
I will be so grateful if somebody can help me to simulate the problem with proper boundary condition.
Thanks a lot in advance.
Best Regards,
Tito
I am pretty new in COMSOL and trying to simulate inter-diffusion between two pure metal (Cu and Sn). I made a simple model in comsol but not sure i considered the right initial condition. I attached also an image.
I put 2 diffusion coefficient for 2 pure metal and want to see how 1 metal diffuse into other one. Here i considered (Cu) is diffusing into (Sn), so (Sn) will be consumed over the time.
I will be so grateful if somebody can help me to simulate the problem with proper boundary condition.
Thanks a lot in advance.
Best Regards,
Tito
Attachments:
3 Replies Last Post 16 août 2017, 03:40 UTC−4
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Posted:
9 years ago
Hi
Transport of diluted species is not the proper physics, as it applies to the case where the diffusing species is embedded (dissolved) in the surrounding medium. You have to use Stefan-Maxwell diffusion, i.e. Transport of concentrated species because there is no medium. Try diffusion coefficient of the order of 10^-10 cm^2/s
BR
Lasse
Transport of diluted species is not the proper physics, as it applies to the case where the diffusing species is embedded (dissolved) in the surrounding medium. You have to use Stefan-Maxwell diffusion, i.e. Transport of concentrated species because there is no medium. Try diffusion coefficient of the order of 10^-10 cm^2/s
BR
Lasse
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Posted:
9 years ago
Hallo Lasse,
Thank you for correcting me to choose the physics module. But i'm a bit confused to set up the model in concentrated species specially transport properties (density =?), initial condition and boundary condition. I have tried to set up the model and attached it here.
Can you please guide me to set-up the model according to my desire (inter-diffusion between two pure metal). It would be so helpful for me if you guide me to set up the proper model, so that i can learn it properly.
Thank you with best regards,
Tito
Thank you for correcting me to choose the physics module. But i'm a bit confused to set up the model in concentrated species specially transport properties (density =?), initial condition and boundary condition. I have tried to set up the model and attached it here.
Can you please guide me to set-up the model according to my desire (inter-diffusion between two pure metal). It would be so helpful for me if you guide me to set up the proper model, so that i can learn it properly.
Thank you with best regards,
Tito
Attachments:
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Posted:
7 years ago
Hello Chironjeet Chaki,
I'm working here on the same subject (i want to modelize the inter diffusion between iron and molten zinc (used in hot dip galvanization)). I'm wondering if you have succeeded to do your model, i'll be so grateful to you if you can give a hint or send me your model to have an example.
I'm working here on the same subject (i want to modelize the inter diffusion between iron and molten zinc (used in hot dip galvanization)). I'm wondering if you have succeeded to do your model, i'll be so grateful to you if you can give a hint or send me your model to have an example.