As we know measuring order parameter for binary systems is easy using xrd where we have standard database for the binary systems. But for quinary and Quaternary alloys we don't have database. Can somebody help me how to measure order parameter for multi component systems..?
Could you tell me what do you mean with order parameter for binary systems and why this is easy to determine by XRD? Thanks in advance...
Sir, I mean to say, we can measure order parameter of binary systems using x-ray diffraction using standard data base, where we don't have the database for multi elemental systems. It will be useful if some one can suggest a way to measure order (chemical) parameter for multi component alloys like high entropy alloys... Thank you in advance.
Dear Mohan Muralikrisna Garlapati
Regards
Please, define: the order parameter ???
I don't know what does it mean, So, Please give a short brief explanation of this parameter? And how can you measure it?
Thank you in advance
Dear Dr. Ahmed,
Order parameter is a measure of chemical order of elements inside an unit cell. for example if you take NiAl alloy, Ni always occupy the body corner position where as Al will occupy body center. and if these two positions are fixed and will not change then we call it as ordered lattice. but there might be some amount of disordered lattice(positions will gets interchanged or varied) so the maximum order parameter we will get is 1 and is always less than 1.
By using ICDD charts of xrd one can correlate the experimental data with the standard data and there by able to tell how much orderliness of lattice we have in our lattice.
Thank you.
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