Building a Kroger-Vink diagram for Al2O3 doped with MgO

[Jack Solo]

Hello!

I am curently studying the insights of building a Brouwer (Kroger-Vink) diagram for a specific doped material.

For example: Al2O3 doped with MgO will result in:

Al2O3 + MgO

Mg_Al^' + Al_i^... + O_O^x + 2V_O^..

I am trying to figure out how to build the diagram based on this doping reaction, log (defect concentration) vs log (oxygen partial pressure)

Hopefuly, I've been explicit enough.

Thanks

 

[Jack Solo]

I managed to get it done eventually, I had to play with equilibrum constants (Ks - schotky, Ki - intrinsic electronic defects...).