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Owing to its excellent corrosion, radiation and high temperature resistance, ZrO2 has been considered as a strong candidate material for inert fuel for the incineration of actinides. In this paper, a combination of thermal spike model and molecular dynamics is used to simulate the phase transition process of ZrO2 in the nuclear radiation environment. Based on the thermal spike model, two coupled diffusion equations are established with considering the multiple physical process of energy deposition and transmission after the implantation of swift heavy ions into target material. The space-time evolution characteristics of ZrO2 lattice temperature are obtained by solving the coupled diffusion equations numerically. Then the phase transformation of ZrO2 form monoclinic phase to tetragonal phase under the thermal spike is investigated on an atomic scale by means of molecular dynamics. It is found that a cylindrical track with a radius of 7 nm is generated in the center of ZrO2 after the implantation of swift heavy ion with an electronic energy loss of 30 keV·nm–1. The lattice melts immediately in the center of track, accompanied with the coordination number of Zr decreasing from 7 to 4–6. Then at about 2 ps, the melting zone gradually turns cool and recrystallized. And in the center of the melting zone, voids begin to form and are surrounded by a highly disordered amorphous region. Meanwhile, tetragonal phase of ZrO2, whose coordination number of Zr is 8, is formed at the periphery of the amorphous region, which is also confirmed by the XRD calculation results. As energy transfers from track center to the surround, the tetragonal region gradually develops into the whole system, accompanied with the increase of voids size. The simulation results indicate that the irradiation of ZrO2 with swift heavy ions can lead to a transformation from the monoclinic to the tetragonal phase when the deposited electronic energy loss exceeds an effective threshold ~21 keV·nm–1, greater than the experimental value (12 keV·nm–1), which was mainly due to the large difference between the simulated and measured incident ion fluences and the accuracy of the force field used in the molecular dynamics.
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Keywords:
- ZrO2 /
- phase transition /
- thermal spike /
- molecular dynamics
[1] Lee Y W, Joung C Y, Kim S H, Lee S C 2001 Met. Mater. Int. 7 159Google Scholar
[2] Aoki T, Sagara H, Han C Y 2019 Ann. Nucl. Energy 126 427Google Scholar
[3] Guo T, Wang C, Lü J, Liang T X 2016 J. Nucl. Mater. 481 66Google Scholar
[4] Nandi C, Grover V, Bhandari K, Bhattacharya S, Mishra S, Banerjee J, Prakash A, Tyagi A K 2018 J. Nucl. Mater. 508 82Google Scholar
[5] Kelly P M, Rose L R F 2002 Prog. Mater. Sci. 47 463Google Scholar
[6] Gong X, Ding S R, Zhao Y M, Huo Y Z, Zhang L, LI Y M 2013 Mech. Mater. 65 110Google Scholar
[7] Benyagoub A, Levesque F, Couvreur F, Gibert-Mougel C, Dufour C, Paumier E 2000 Appl. Phys. Lett. 77 3197Google Scholar
[8] Benyagoub A 2006 Nucl. Instrum. Methods Phys. Res., Sect. B 245 225Google Scholar
[9] Benyagoub A 2010 Nucl. Instrum. Methods Phys. Res., Sect. B 268 2968Google Scholar
[10] Schuster B, Fujara F, Merk B, Neumann R, Seidl T, Trautmann C 2012 Nucl. Instrum. Methods Phys. Res., Sect. B 277 45Google Scholar
[11] Manzini A M, Alurralde M A, Giménez G, Luca V 2016 J. Nucl. Mater. 482 175Google Scholar
[12] O'Connell J H, Lee M E, Skuratov V A, Rymzhanov R A 2020 Nucl. Instrum. Methods Phys. Res., Sect. B 473 1Google Scholar
[13] Benyagoub A 2005 Phys. Rev. B 72 094114Google Scholar
[14] Lu F Y, Wang J W, Lang M, Toulemonde M, Namavar F, Trautmann C, Zhang J M, Ewing R C, Lian J 2012 Phys. Chem. Chem. Phys. 14 12295Google Scholar
[15] Sharma A, Varshney M, Shin H J, Kumar Y, Gautam S, Chae K H 2014 Chem. Phys. Lett. 592 85Google Scholar
[16] Wang J W, Lang M, Ewing R C, Becker U 2013 J. Phys. Condens. Matter 25 135001Google Scholar
[17] 王成龙, 王庆宇, 张跃, 李忠宇, 洪兵, 苏折, 董良 2014 物理学报 63 153402Google Scholar
Wang C L, Wang Q Y, Zhang Y, Li Z Y, Hong B, Su Z, Dong L 2014 Acta Phys. Sin. 63 153402Google Scholar
[18] 袁伟, 彭海波, 杜鑫, 律鹏, 沈扬皓, 赵彦, 陈亮, 王铁山 2017 物理学报 66 106102Google Scholar
Yuan W, Peng H B, Du X, Lv P, Shen Y H, Zhao Y, Chen L, Wang T S 2017 Acta Phys. Sin. 66 106102Google Scholar
[19] Toulemonde M, Trautmann C, Balanzat E, Hjort K, Weidinger A 2004 Nucl. Instrum. Methods Phys. Res., Sect. B 216 1Google Scholar
[20] Meftah A, Costantini J M, Khalfaoui N, Boudjadar S, Stoquert J P, Studer F, Toulemonde M 2005 Nucl. Instrum. Methods Phys. Res., Sect. B 237 563Google Scholar
[21] Stodel C, Toulemonde M, Fransen C, Jacquot B, Clément C, Frémont G, Michel M, Dufour C 2018 29th International Conference of the International Nuclear Target Development Society East Lansing, Michigan, United States of America, October 7–12, 2018 p05001
[22] Toulemonde M, Dufour Ch, Meftah A, Paumier E 2000 Nucl. Instrum. Methods Phys. Res., Sect. B 166 903Google Scholar
[23] Coughlin J P, King E G 1950 J. Am. Chem. Soc. 72 2262Google Scholar
[24] Kim W K, Shim J H, Kaviany M 2016 J. Nucl. Mater. 491 126Google Scholar
[25] Sobolev V, Lemehov S 2006 J. Nucl. Mater. 352 300Google Scholar
[26] Mévrel R, Laizet J C, Azzopardi A, Leclercq B, Poulain M, Lavigne O, Demange D 2004 J. Eur. Ceram. Soc. 24 3081Google Scholar
[27] Ziegler J F, Ziegler M D, Biersack J P 2008 Nucl. Instrum. Methods Phys. Res., Sect. B 268 1818Google Scholar
[28] Plimpton S 1995 J. Comput. Phys. 117 1Google Scholar
[29] Buckingham R A 1938 Proc. R. Soc. London, Ser. A 168 264Google Scholar
[30] Houska J 2016 Comput. Mater. Sci. 111 209Google Scholar
[31] López P, Pelaz L, Santos I, Marqués L A, Aboy M 2012 J. Appl. Phys. 111 033519Google Scholar
[32] Nordlund K 1995 Comput. Mater. Sci. 3 448Google Scholar
[33] Coleman S P, Sichani M M, Spearot D E 2014 JOM 66 408Google Scholar
[34] 杨辉, 冯泽华, 王贺然, 张云鹏, 陈铮, 信天缘, 宋小蓉, 吴璐, 张静 2021 物理学报 70 054601Google Scholar
Yang H, Feng Z H, Wang H R, Zhang Y P, Chen Z, Xin T Y, Song X R, Wu L, Zhang J 2021 Acta Phys. Sin. 70 054601Google Scholar
[35] Szenes G 1995 Phys. Rev. B 51 8026Google Scholar
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图 6 不同时刻不同配位数Zr原子空间分布. 所有原子沿离子入射方向投影在(010)平面上, 颜色不同代表配位数不同
Figure 6. Spatial distribution of Zr atoms with different coordination number at various times. All the atoms are projected on (010) plane along the injection direction of thermal spike. Different coordination numbers are distinguished by the atomic color.
图 8 不同配位数Zr原子空间分布 (a) 电子能损值为20 keV·nm–1; (b)电子能损值为21 keV·nm–1. 所有原子沿离子入射方向投影在(010)平面上, 颜色不同代表配位数不同
Figure 8. Spatial distribution of Zr atoms with different coordination number: (a) Se = 20 keV nm–1; (b) Se = 21 keV nm–1. All the atoms are projected on (010) plane along the injection direction of thermal spike. Different coordination numbers are distinguished by the atomic color.
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[1] Lee Y W, Joung C Y, Kim S H, Lee S C 2001 Met. Mater. Int. 7 159Google Scholar
[2] Aoki T, Sagara H, Han C Y 2019 Ann. Nucl. Energy 126 427Google Scholar
[3] Guo T, Wang C, Lü J, Liang T X 2016 J. Nucl. Mater. 481 66Google Scholar
[4] Nandi C, Grover V, Bhandari K, Bhattacharya S, Mishra S, Banerjee J, Prakash A, Tyagi A K 2018 J. Nucl. Mater. 508 82Google Scholar
[5] Kelly P M, Rose L R F 2002 Prog. Mater. Sci. 47 463Google Scholar
[6] Gong X, Ding S R, Zhao Y M, Huo Y Z, Zhang L, LI Y M 2013 Mech. Mater. 65 110Google Scholar
[7] Benyagoub A, Levesque F, Couvreur F, Gibert-Mougel C, Dufour C, Paumier E 2000 Appl. Phys. Lett. 77 3197Google Scholar
[8] Benyagoub A 2006 Nucl. Instrum. Methods Phys. Res., Sect. B 245 225Google Scholar
[9] Benyagoub A 2010 Nucl. Instrum. Methods Phys. Res., Sect. B 268 2968Google Scholar
[10] Schuster B, Fujara F, Merk B, Neumann R, Seidl T, Trautmann C 2012 Nucl. Instrum. Methods Phys. Res., Sect. B 277 45Google Scholar
[11] Manzini A M, Alurralde M A, Giménez G, Luca V 2016 J. Nucl. Mater. 482 175Google Scholar
[12] O'Connell J H, Lee M E, Skuratov V A, Rymzhanov R A 2020 Nucl. Instrum. Methods Phys. Res., Sect. B 473 1Google Scholar
[13] Benyagoub A 2005 Phys. Rev. B 72 094114Google Scholar
[14] Lu F Y, Wang J W, Lang M, Toulemonde M, Namavar F, Trautmann C, Zhang J M, Ewing R C, Lian J 2012 Phys. Chem. Chem. Phys. 14 12295Google Scholar
[15] Sharma A, Varshney M, Shin H J, Kumar Y, Gautam S, Chae K H 2014 Chem. Phys. Lett. 592 85Google Scholar
[16] Wang J W, Lang M, Ewing R C, Becker U 2013 J. Phys. Condens. Matter 25 135001Google Scholar
[17] 王成龙, 王庆宇, 张跃, 李忠宇, 洪兵, 苏折, 董良 2014 物理学报 63 153402Google Scholar
Wang C L, Wang Q Y, Zhang Y, Li Z Y, Hong B, Su Z, Dong L 2014 Acta Phys. Sin. 63 153402Google Scholar
[18] 袁伟, 彭海波, 杜鑫, 律鹏, 沈扬皓, 赵彦, 陈亮, 王铁山 2017 物理学报 66 106102Google Scholar
Yuan W, Peng H B, Du X, Lv P, Shen Y H, Zhao Y, Chen L, Wang T S 2017 Acta Phys. Sin. 66 106102Google Scholar
[19] Toulemonde M, Trautmann C, Balanzat E, Hjort K, Weidinger A 2004 Nucl. Instrum. Methods Phys. Res., Sect. B 216 1Google Scholar
[20] Meftah A, Costantini J M, Khalfaoui N, Boudjadar S, Stoquert J P, Studer F, Toulemonde M 2005 Nucl. Instrum. Methods Phys. Res., Sect. B 237 563Google Scholar
[21] Stodel C, Toulemonde M, Fransen C, Jacquot B, Clément C, Frémont G, Michel M, Dufour C 2018 29th International Conference of the International Nuclear Target Development Society East Lansing, Michigan, United States of America, October 7–12, 2018 p05001
[22] Toulemonde M, Dufour Ch, Meftah A, Paumier E 2000 Nucl. Instrum. Methods Phys. Res., Sect. B 166 903Google Scholar
[23] Coughlin J P, King E G 1950 J. Am. Chem. Soc. 72 2262Google Scholar
[24] Kim W K, Shim J H, Kaviany M 2016 J. Nucl. Mater. 491 126Google Scholar
[25] Sobolev V, Lemehov S 2006 J. Nucl. Mater. 352 300Google Scholar
[26] Mévrel R, Laizet J C, Azzopardi A, Leclercq B, Poulain M, Lavigne O, Demange D 2004 J. Eur. Ceram. Soc. 24 3081Google Scholar
[27] Ziegler J F, Ziegler M D, Biersack J P 2008 Nucl. Instrum. Methods Phys. Res., Sect. B 268 1818Google Scholar
[28] Plimpton S 1995 J. Comput. Phys. 117 1Google Scholar
[29] Buckingham R A 1938 Proc. R. Soc. London, Ser. A 168 264Google Scholar
[30] Houska J 2016 Comput. Mater. Sci. 111 209Google Scholar
[31] López P, Pelaz L, Santos I, Marqués L A, Aboy M 2012 J. Appl. Phys. 111 033519Google Scholar
[32] Nordlund K 1995 Comput. Mater. Sci. 3 448Google Scholar
[33] Coleman S P, Sichani M M, Spearot D E 2014 JOM 66 408Google Scholar
[34] 杨辉, 冯泽华, 王贺然, 张云鹏, 陈铮, 信天缘, 宋小蓉, 吴璐, 张静 2021 物理学报 70 054601Google Scholar
Yang H, Feng Z H, Wang H R, Zhang Y P, Chen Z, Xin T Y, Song X R, Wu L, Zhang J 2021 Acta Phys. Sin. 70 054601Google Scholar
[35] Szenes G 1995 Phys. Rev. B 51 8026Google Scholar
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