中国物理B ›› 2021, Vol. 30 ›› Issue (5): 50701-050701.doi: 10.1088/1674-1056/abd691

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Phase transition of shocked water up to 6 GPa: Transmittance investigation

Lang Wu(吴浪)1,2, Yue-Hong Ren(任月虹)1,2, Wen-Qiang Liao(廖文强)1,2, Xi-Chen Huang(黄曦晨)1,2, Fu-Sheng Liu(刘福生)1,2, Ming-Jian Zhang(张明建)1,2, and Yan-Yun Sun(孙燕云)1,2,†   

  1. 1 Key Laboratory of Advanced Technologies of Materials, Ministry of Education of China, School of Physical Science and Technology, Southwest Jiaotong University, Chengdu 610031, China;
    2 Sichuan Provincial Key Laboratory(for Universities) of High Pressure Science and Technology, Southwest Jiaotong University, Chengdu 610031, China
  • 收稿日期:2020-09-05 修回日期:2020-12-04 接受日期:2020-12-24 出版日期:2021-05-14 发布日期:2021-05-14
  • 通讯作者: Yan-Yun Sun E-mail:sunyanyun@home.swjtu.edu.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 11604271).

Phase transition of shocked water up to 6 GPa: Transmittance investigation

Lang Wu(吴浪)1,2, Yue-Hong Ren(任月虹)1,2, Wen-Qiang Liao(廖文强)1,2, Xi-Chen Huang(黄曦晨)1,2, Fu-Sheng Liu(刘福生)1,2, Ming-Jian Zhang(张明建)1,2, and Yan-Yun Sun(孙燕云)1,2,†   

  1. 1 Key Laboratory of Advanced Technologies of Materials, Ministry of Education of China, School of Physical Science and Technology, Southwest Jiaotong University, Chengdu 610031, China;
    2 Sichuan Provincial Key Laboratory(for Universities) of High Pressure Science and Technology, Southwest Jiaotong University, Chengdu 610031, China
  • Received:2020-09-05 Revised:2020-12-04 Accepted:2020-12-24 Online:2021-05-14 Published:2021-05-14
  • Contact: Yan-Yun Sun E-mail:sunyanyun@home.swjtu.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 11604271).

摘要: The phase transition behaviors of the shocked water are investigated by employing an optical transmittance in-situ detection system. Based on the light scattering theory and phase transformation kinetics, the phase transition mechanism of the water under multiple shocks is discussed. The experimental data indicate that the evolution of the transmittance of the shocked water can be broadly divided into three stages: relaxation stage, decline stage, and recovery stage. In the early stage of the phase transition, the new phase particles began to form around the quartz/window interface. It should be mentioned that the water/ice phase boundary seems to move toward the liquid region in one experiment of this work. Due to the new phase core being much smaller than the wavelength of the incident light, the transmittance of the sample within the relaxation stage remains steady. The decline stage can be divided into the rapid descent stage and the slow descent stage in this work, which is considered as the different growth rates of the new phase particle under different shock loadings. The recovery stage is attributed to the emergence of the new phase particles which are bigger than the critical value. However, the influence of the size growth and the population growth of the new phase particles on the transmittance restrict each other, which may be responsible for the phenomenon that the transmittance curve does not return to the initial level.

关键词: phase transition, shocked water, multiple compresses, transmittance, scattering

Abstract: The phase transition behaviors of the shocked water are investigated by employing an optical transmittance in-situ detection system. Based on the light scattering theory and phase transformation kinetics, the phase transition mechanism of the water under multiple shocks is discussed. The experimental data indicate that the evolution of the transmittance of the shocked water can be broadly divided into three stages: relaxation stage, decline stage, and recovery stage. In the early stage of the phase transition, the new phase particles began to form around the quartz/window interface. It should be mentioned that the water/ice phase boundary seems to move toward the liquid region in one experiment of this work. Due to the new phase core being much smaller than the wavelength of the incident light, the transmittance of the sample within the relaxation stage remains steady. The decline stage can be divided into the rapid descent stage and the slow descent stage in this work, which is considered as the different growth rates of the new phase particle under different shock loadings. The recovery stage is attributed to the emergence of the new phase particles which are bigger than the critical value. However, the influence of the size growth and the population growth of the new phase particles on the transmittance restrict each other, which may be responsible for the phenomenon that the transmittance curve does not return to the initial level.

Key words: phase transition, shocked water, multiple compresses, transmittance, scattering

中图分类号:  (High-pressure effects in solids and liquids)

  • 62.50.-p
64.60.Bd (General theory of phase transitions) 42.25.Fx (Diffraction and scattering)