Open Access

ARTICLE

Phase Transformation Behavior of C60 Fullerene under Atmospheric Pressure

Wen-Hwa Chen^1,2, Chun-Hung Wu¹, Hsien-Chie Cheng^3,4

1 1Department of Power Mechanical Engineering, National Tsing Hua University Hsinchu, Taiwan 30013, ROC
2 2National Applied Research Laboratories, Taipei, Taiwan, 10622, R.O.C.
3 3Department of Aerospace and Systems Engineering, Feng Chia University,Taichung, Taiwan 40724, ROC
4 National Center for High-Performance Computing, Hsinchu, Taiwan, 30076, R.O.C.

Structural Longevity 2010, 4(3), 137-144. https://doi.org/10.3970/sl.2010.004.137

Abstract

The phase transformation behaviors of C₆₀ fullerene under atmospheric pressure are reported using a proposed thermostat molecular dynamics method designed for a solid system. We find that C60 fullerene directly undergoes a solidvapor phase transformation, instead of a solid-liquid phase transition, at a specific threshold temperature. It reveals that C₆₀ fullerene will sublimate when heated rather than melt under atmospheric pressure. This phenomenon is coincident with that of graphite at pressures below 10MPa. The sublimation point of C₆₀ fullerene, rather than the melting, is about 4350±20K, locating in the published range of about 4000-4500K for graphite at pressures below 10 MPa.

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Keywords

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