I would like to explain my question with the following illustrative situation. In general, when we apply the high-pressure to the solid materials at room temperature conditions, the solid materials undergoes phase transformation.
For instance, InTe compound adopts the tetragonal structure (space group: I4/mcm) at room temperature and room pressure conditions. When the isothermal hydrostatic pressure (i.e., keeping temperature constant, and applying the pressure), this solid material, transform into face centered cubic phase (space group: Fm-3m) at ∼6.0GPa. Upon further pressure increase, this material again transform into primitive cubic phase (space group: Pm-3m) at P ∼ 15 GPa.
When we release the pressure, this material come back to original initial structure (tetragonal: I4/mcm) at room temperature and room pressure. The pressure induced phase transition is completely reversible.
In this case, can we say that, I synthesized the InTe compound with Fm-3m and Pm-3m structures?
Is it scientifically correct to use the synthesis word in this context?
Please let me know.
Your valuable explanation, suggestion, and guidance will be very useful to our research works. Thank you very much in advance.
Definetly, I would like to call it ‘mechanical synthesis’ as compared to ‘chemical synthesis’
Thanks for your reply. Here the sample is returning into original phase upon the pressure release. So 'mechanical synthesis" word how suitable is? Could you please add some more discussion on this? Thanks
Sure senior,
Well, you are not able to lock the phase hence the reversibility is occurring, or the material cannot withstand such interactions (in different phase symmetry) under ambient conditions.
So, In this case, you might have probed the mechanical stability/effect on the material but you have not 'synthesized' a stable product.
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