Anomalous behavior of the cavitation bubble observed in pulsed laser ablation of Ni in liquid CO2 near the critical point
Anomalous behavior of the cavitation bubble observed in pulsed laser ablation of Ni in liquid CO2 near the critical point
复制标题
脉冲激光烧蚀液态 CO2 中镍在临界点附近观察到的空化气泡的异常行为
DOI：
10.1109/tps.2014.2327233
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发表时间：
2014
影响因子：
1.5
通讯作者：
and K. Terashima
中科院分区：
文献类型：
--
作者：
S. Himeno;T. Kato;K. Urabe;S. Stauss;S. Kato;H. Muneoka;M. Baba;T. Suemoto;and K. Terashima
脉冲激光烧蚀Ni靶的临界点（C. P.）（Pcrit= 7.38 MPa，Tcrit= 304.1 K），并通过阴影成像分析等离子体和随后的空化气泡的时间演化。在靠近C. P的液相中观察到了双层反常空化气泡的形成，测量了空化气泡的尺寸和传播速度，发现在实验范围内，（P = 7.20-7.40 MPa，T = 301-303 K）时，随着压力和温度的升高，空化泡的尺寸增加了三倍，而传播速度降低。
Pulsed laser ablation of Ni targets in liquid CO2near the critical point (C.P.) (Pcrit= 7.38 MPa, Tcrit= 304.1 K) was performed and the time evolution of the plasma and the ensuing cavitation bubble analyzed by shadowgraph imaging. Formation of double-layered anomalous cavitation bubbles was observed inside the liquid phase close to the C.P. The size and propagation speed of the cavitation bubbles were measured and it was found that in the experimental range investigated (P = 7.20-7.40 MPa, T = 301-303 K), the size of the cavitation bubble increased by a factor of up to three for increasing pressure and temperature, whereas the propagation speed decreased.