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Solidification transformation of benzene under quasi-isentropic compression

Cheng Xiao-Li Liu Fu-Sheng Li Yong-Hong Peng Xiao-Juan Zhang Ming-Jian

Solidification transformation of benzene under quasi-isentropic compression

Cheng Xiao-Li, Liu Fu-Sheng, Li Yong-Hong, Peng Xiao-Juan, Zhang Ming-Jian
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  • Received Date:  19 August 2010
  • Accepted Date:  20 December 2010
  • Published Online:  15 September 2011

Solidification transformation of benzene under quasi-isentropic compression

  • 1. Laboratory of High Pressure Physics, Southwest Jiaotong University, Chengdu 610031, China

Abstract: Kinetics of solidification of liquid benzene under high pressure has attracted much attention of scientists, and it is also one of long-standing disputes. In the present work, the gas-gun technique is combined with a recently developed measurement method of light transmittance, and the time dependence of light transmittance of liquid benzene is directly observed during successive multiply shock-compressions. The analysis shows that the transmittance decrease is caused by light scattering effects in a non-uniform optical medium, which is formed by local phase transformation of liquid-solid, and that the scattering feature reflects both the time relaxation and the spacial accumulation of transition process. The argument whether the liquid-solid phase transformation happens under multi-shock compression is clarified, and important experimental evidence is provided for the study of phase transformation Kinetics.

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