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The Thermodynamic Relations between the Melting Point and the Size of Crystals

✍ Scribed by Yongqiang Xue; Qingsheng Zhao; Chunhui Luan

Publisher
Elsevier Science
Year
2001
Tongue
English
Weight
41 KB
Volume
243
Category
Article
ISSN
0021-9797

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✦ Synopsis

The thermodynamic relations between the melting point (MP) and the size of crystals are derived by the use of the Kelvin equation. The results show that the MP depression increases with a decrease in size of a crystal and that there exists the lowest MP when the partial derivative of the surface tension with respect to particle radius (βˆ‚Οƒ / βˆ‚r) T,p = Οƒ / r. If the size of a crystal is not too small then the depression is inversely proportional to the radius.

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