Hello Scientific community;
We heared about the bulk doping. what's the diffrence between the bulk doping and surface doping ?
Dear colleague Abdelmounaim Chetoui ,
Have a nice time and good day.
Peace be up on you [Al-Salamo Alicom wa rahmato Allah wa barakatoh].
1- Bulk doping: when you out a trace of element A to element B and seal them in a container then cooling them slowly or quickly to a certain temperature the resultant material will be the alloy AB. so the whole resultant material is bulk AB and the element A is completely mixed and react with element B. See Fig.(a)
2- Surface doping: if coat the surface of element A with element B and make annealing according to DTA or DSC the element A will partially react with element B and diffused though the interface area between element A and element B only.So the surface of the resultant material will be an alloy AB and the other part of the material will be as it is. the the resultant material of surface doping has two types: the first one is material A the second one is material AB at the same time. See Fig..s (b), (c), (d).
I wish this is help you and be useful.
Yours
A. EL-Denglawey
Dear colleague A. Eldenglawey ;
peace be up on you. I would like to presents my sincere thanks to you. I appreciate.
Have a nice end of day
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