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Atomistic simulation of the surface structure of wollastonite

✍ Scribed by T.K. Kundu; K. Hanumantha Rao; S.C. Parker


Publisher
Elsevier Science
Year
2003
Tongue
English
Weight
608 KB
Volume
377
Category
Article
ISSN
0009-2614

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✦ Synopsis


Atomistic simulation techniques have been used to calculate the surface structure and stability of wollastonite crystal. Seven predominant surfaces have been modelled and their calculated surface energy corresponds well with their morphological domination. The surface energy, hydration energy and reaction energy values indicate wollastonite surfaces stabilized to great extent by adsorbing water in dissociated form. The Ca 2ΓΎ replacement from the first few layers of the surface is found to be energetically more favourable, elucidating high dissolution phenomena of wollastonite mineral.


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