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基于磁驱动加载装置CQ-4开展了锆的斜波压缩相变实验，研究了锆样品后表面窗口声阻抗对相变波形的影响.实验结果显示，锆后表面为较低声阻抗窗口（自由面和LiF窗口）时，相变起始对应的特征粒子速度约331.0 m/s，而高阻抗蓝宝石窗口时，特征粒子速度约301.9 m/s，特征速度对应的压力从约9.14 GPa下降到8.27 GPa.相变对应的速度特征拐点是与多种因素相关的实验信息，因此它对应的压力并不是材料属性参数相变压力.结合基于热力学Helmholtz自由能的多相状态方程和非平衡相变动力学方程开展了锆的相变动力学数值模拟研究，相变弛豫时间为30 ns，计算结果与三种情况的实验结果符合良好，可以较好地模拟斜波压缩下锆的弹塑性转变、相变等物理过程.在压力-比容和温度-压力热力学平面，相变前锆的准等熵线与冲击绝热线差异很小，相变后准等熵线都位于冲击绝热线下方，随着压力的增加准等熵线和冲击绝线偏差越来越大，温度-压力平面中在20 GPa时相差约100 K.相变开始后，由于相变引起比容的间断，导致锆的拉氏声速迅速下降约7%，相变完成后拉氏声速恢复到体波声速.
[1] Xiao D W 2008 Ph. D. Dissertation (Hefei: University of Science and Technology of China) (in Chinese) [肖大武2008 博士学位论文(合肥: 中国科学技术大学)]
[2] Bridgman P W 1952 Proceedings of the American Academy of Arts Sciences 81 165
[3] Jamieson J C 1963 Science 140 72
[4] Zilbershtein V A, Nosova G I, Estrin E I 1973 Phys. Met. Metallogr. 35 29
[5] Xia H, Parthasarathy G, Luo H, Vohra Y K, Ruoff A L 1990 Phys. Rev. B 42 6736
[6] Xia H, Duclos S J, Ruoff A L, Vohra Y K 1990 Phys. Rev. Lett. 64 204
[7] Al'Tshuler L V, Bakanova A A, Dudoladov I P 1967 Zh. Eksp. Teor. Fiz. 53 1967
[8] Al'Tshuler L V, Bakanova A A, Dudoladov I P, Dynin E A, Trunin R F, Chekin B S 1981 J. Appl. Mech. Tech. Ph. 22 145
[9] McQueen R G, Marsh S P, Taylor J W, Fritz J N, Carter W J 1970 High Velocity Impact Phenomena (New York: Academic) pp293-417
[10] Kutsar A R, Pavlovskii M N, Kamissarov V V 1982 Jetp. Lett. 39 1
[11] Greeff C W 2005 Model. Simul. Mater. Sc. 13 1015
[12] Cerreta E, Iii G T G, Hixson R S, Rigg P A, Brown D W 2005 Acta Mater. 53 1751
[13] Gray G T, Bourne N K 2000 Shock Compression of Condensed Matter (Vol. 505) (American Institute of Physics) p509
[14] Rigg P A, Greeff C W, Knudson M D, Iii G T G, Hixson R S 2009 J. Appl. Phys. 106 245
[15] Li Y H 2006 M. S. Dissertation (Mianyang: China Academy of Engineering Physics) (in Chinese) [李英华 2006 硕士学位论文(绵阳: 中国工程物理研究院)]
[16] Chong T, Wang G J, Tan F L, Luo B Q, Zhang X P, Wu G, Zhao J H 2014 Sci. Sin.: Phys. Mech. Astron. 44 1 (in Chinese) [种涛, 王桂吉, 谭福利, 罗斌强, 张旭平, 吴刚, 赵剑衡 2014 中国科学: 物理学 力学 天文学 44 1]
[17] Wang G J, Luo B Q, Zhang X P, Zhao J H, Sun C W, Tan F L, Chong T, Mo J J, Wu G, Tao Y H 2013 Rev. Sci. Instrum. 84 015117
[18] Hall C A, Asay J R, Knudson M D, Stygar W A, Hall C A, Asya J R, Knudson M D 2001 Rev. Sci. Instrum. 72 3587
[19] Chong T 2012 M. S. Dissertation (Mianyang: China Academy of Engineering Physics) (in Chinese) [种涛 2012 硕士学位论文(绵阳: 中国工程物理研究院)]
[20] Tang Z P 2008 Phase Transition under Shock Compression (Beijing: Science Press) p130 (in Chinese) [唐志平 2008 冲击相变 (北京: 科学出版社) 第130页]
[21] Hayes D B 1975 J. Appl. Phys. 46 3438
[22] Zuo Q H, Harstad E N, Addessio F L, Greeff C W 2006 Model. Simul. Mater. Sci. 14 1465
[23] Steinberg D J, Cochran S G, Guinan M W 1980 J. Appl. Phys. 51 1498
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[1] Xiao D W 2008 Ph. D. Dissertation (Hefei: University of Science and Technology of China) (in Chinese) [肖大武2008 博士学位论文(合肥: 中国科学技术大学)]
[2] Bridgman P W 1952 Proceedings of the American Academy of Arts Sciences 81 165
[3] Jamieson J C 1963 Science 140 72
[4] Zilbershtein V A, Nosova G I, Estrin E I 1973 Phys. Met. Metallogr. 35 29
[5] Xia H, Parthasarathy G, Luo H, Vohra Y K, Ruoff A L 1990 Phys. Rev. B 42 6736
[6] Xia H, Duclos S J, Ruoff A L, Vohra Y K 1990 Phys. Rev. Lett. 64 204
[7] Al'Tshuler L V, Bakanova A A, Dudoladov I P 1967 Zh. Eksp. Teor. Fiz. 53 1967
[8] Al'Tshuler L V, Bakanova A A, Dudoladov I P, Dynin E A, Trunin R F, Chekin B S 1981 J. Appl. Mech. Tech. Ph. 22 145
[9] McQueen R G, Marsh S P, Taylor J W, Fritz J N, Carter W J 1970 High Velocity Impact Phenomena (New York: Academic) pp293-417
[10] Kutsar A R, Pavlovskii M N, Kamissarov V V 1982 Jetp. Lett. 39 1
[11] Greeff C W 2005 Model. Simul. Mater. Sc. 13 1015
[12] Cerreta E, Iii G T G, Hixson R S, Rigg P A, Brown D W 2005 Acta Mater. 53 1751
[13] Gray G T, Bourne N K 2000 Shock Compression of Condensed Matter (Vol. 505) (American Institute of Physics) p509
[14] Rigg P A, Greeff C W, Knudson M D, Iii G T G, Hixson R S 2009 J. Appl. Phys. 106 245
[15] Li Y H 2006 M. S. Dissertation (Mianyang: China Academy of Engineering Physics) (in Chinese) [李英华 2006 硕士学位论文(绵阳: 中国工程物理研究院)]
[16] Chong T, Wang G J, Tan F L, Luo B Q, Zhang X P, Wu G, Zhao J H 2014 Sci. Sin.: Phys. Mech. Astron. 44 1 (in Chinese) [种涛, 王桂吉, 谭福利, 罗斌强, 张旭平, 吴刚, 赵剑衡 2014 中国科学: 物理学 力学 天文学 44 1]
[17] Wang G J, Luo B Q, Zhang X P, Zhao J H, Sun C W, Tan F L, Chong T, Mo J J, Wu G, Tao Y H 2013 Rev. Sci. Instrum. 84 015117
[18] Hall C A, Asay J R, Knudson M D, Stygar W A, Hall C A, Asya J R, Knudson M D 2001 Rev. Sci. Instrum. 72 3587
[19] Chong T 2012 M. S. Dissertation (Mianyang: China Academy of Engineering Physics) (in Chinese) [种涛 2012 硕士学位论文(绵阳: 中国工程物理研究院)]
[20] Tang Z P 2008 Phase Transition under Shock Compression (Beijing: Science Press) p130 (in Chinese) [唐志平 2008 冲击相变 (北京: 科学出版社) 第130页]
[21] Hayes D B 1975 J. Appl. Phys. 46 3438
[22] Zuo Q H, Harstad E N, Addessio F L, Greeff C W 2006 Model. Simul. Mater. Sci. 14 1465
[23] Steinberg D J, Cochran S G, Guinan M W 1980 J. Appl. Phys. 51 1498
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