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Chapter II Solution Growth….<br />

Conclusion<br />

1. Some limited effect of amino acids doping was observed on the<br />

morphology of KDP crystals.<br />

2. The solubility of pure and amino acids doped KDP crystals increased<br />

with increase in temperature. The solubility at given temperature was<br />

more for amino acids doped KDP crystals than for pure KDP crystal.<br />

3. As the doping level of amino acids increased the induction period<br />

increased marginally for particular dopant. Therefore, the doping of<br />

amino acids affected the nucleation process.<br />

4. The values of interfacial tension, energy of formation of critical nucleus<br />

and radius of critical nucleus were calculated at various super-<br />

saturation levels for both pure and doped KDP crystals from classical<br />

nucleation theory, and it was found that the nucleation parameters<br />

decreased as the super-saturation level increased.<br />

5. The values of different nucleation parameters were comparatively<br />

larger for amino acids doped KDP crystals than the pure KDP crystals.<br />

The difference in solubility of amino acids and KDP might have resulted<br />

in the formation of specks of amino acids earlier than KDP , which<br />

might have accelerated the nucleation , probably , in a heterogeneous<br />

manner.<br />

113

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