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副高

姓名:吕勇军
所在学科:物理学
职称:副教授
联系电话:010-68914027
E-mail:04537@bit.edu.cn
通信地址:

个人简历

1999年兰州大学材料科学系获得学士学位,2002年和2006年分别获得西北工业大学材料物理与化学硕士学位和博士学位。

工作经历

2006.07至2008.06 清华大学航天航空学院工程力学系,博士后
2008.07至2010.02 北京理工大学理学院物理系,讲师
2010.03至2011.08    德国杜伊斯堡-埃森大学物理系,洪堡访问学者
2011.09至今         北京理工大学物理学院,讲师、副教授

科研方向

主要研究方向有:
(1)液态金属非平衡相变热力学和动力学;
(2)过冷液态金属的热物理性质;
(3)液态系统的界面和表面性质及其对相变过程的影响;
(4)微纳米通道的流体输运过程。

学术成就

主要学术贡献:
(1) 首次揭示了金属液滴的表面优先形核机制;研究了表面环境对水和金属液滴的影响规律。
(2) 采用计算机模拟方法首次揭示液态合金在spinodal点附近的结晶规律。
(3) 系统模拟液态纯金属和二元合金的比热、密度、扩散系数、粘度等热力学和动力学性质。
(4) 采用声悬浮实验技术首次报道了旋转液滴的四次对称平衡形状,并且首次发现五次对称平衡形状。提出了声场条件下旋转液滴平衡形状的修正理论模型。
在Phys. Rev. Lett., Acta Mater., Appl. Phys. Lett., J. Chem. Phys., J. Phys. Chem. B, Phys. Rev. B/E, Philos. Mag.等国内外学术期刊上发表SCI 学术论文37 篇。已主持完成和正在承担国家自然科学基金青年基金和面上基金各一项,博士后科学基金一项,获得省部级科学技术一等奖一项。
主要学术论文
1. Y. J. Lü, P. Entel, “Impact of medium-range order on the glass transition in liquid Ni-Si alloys”, Phys. Rev. B, 84, 104203 (2011)
2. Y. J. Lü and M. Chen, “Surface-layering-induced crystallization of Ni-Si alloy drops”, Acta Mater. 60, 4636 (2012)
3. Y. J. Lü, X. X. Zhang, M. Chen, Size Effect on Nucleation Rate for Homogeneous Crystallization of Nanoscale Water Film,J. Phys. Chem. B, 117, 10241 (2013)
4. B. S. Shang, M. Z. Li, Y. G. Yao, Y. J. Lü,W. H. Wang,Evolution of atomic rearrangements in deformation in metallic glasses,Phys. Rev. E, 90, 042303 (2014).
5. Y. J. Lü, Homogeneous two-dimensional nucleation of guest-free silicon clathrates,Phil. Mag., 95, 242(2015)
6. Y. J. Lü, M. Chen, “Thermophysical Properties of Undercooled Alloys: An Overview of the Molecular Simulation Approaches”, Inter. J. Mol. Sci., 12, 278-316 (2011) (Invited review)
7. Q. L. Bi, Y. J. Lü, A kinetic transition from low to high fragility of the best glass-forming Cu-Zr liquids, Chin. Phys. Lett., 31 (10), 2014.
8. Y. J. Lü, H. Cheng and M. Chen, “A molecular dynamics examination of the relationship between self-diffusion and viscosity in liquid metals”, J. Chem. Phys., 136, 214505 (2012).
9. Y. J. Lü, “Crystal growth velocity in deeply undercooled Ni-Si alloys”, Phil. Mag. Lett., 92, 56 (2012).
10. Y. J. Lü, W. J. Xie, B. Wei, “Multiple-lobed bifurcation of rotating liquid drops levitated by ultrasound”, J. Appl. Phys., 107, 014909 (2010)
11. H. Cheng, Y. J. Lü, and M. Chen, “Interdiffusion in liquid Al–Cu and Ni–Cu alloys”, J. Chem. Phys., 131, 044502 (2009)
12. Y. J. Lü, H. Yang, D. Q. Yu, M. Chen, “Nucleation of alloy system near spinodal”, Acta Mater., 56, 4022-4027 (2008)
13. Y. J. Lü, M. Chen, “Oscillation of gas molecules in carbon nanotubes” Nanotech., 19, 215707 (2008)
14. W. J. Xie, C. D. Cao, Y. J. Lü, B. Wei, “Levitation of iridium and liquid mercury by ultrasound”, Phys. Rev. Lett., 89(10), 104304-1~4(2002)
15. Y. J. Lü, and B. Wei, “Second Inflection Point in Surface Tension of Water”, Appl. Phys. Lett., 89, 164106 (2006)
16. Y. J. Lü, W. J. Xie, B. Wei, “Observation of ice nucleation in acoustically levitated liquid drops”, Appl. Phys. Lett., 87(18), 184107 (2005)
17. W. J. Xie, C. D. Cao, Y. J. Lü, Z. Y. Hong, B. Wei, “Acoustic method for levitation of small living animals”, Appl. Phys. Lett., 89, 214102 (2006)
18. Y. J. Lü, and B. Wei, “Supercooling of aqueous NaCl and KCl solutions under acoustic levitation”, J. Chem. Phys., 125, 144503 (2006)
19. W. J. Xie, C. D. Cao, Y. J. Lü, B. Wei, “Eutectic growth under acoustic levitation conditions”, Phys. Rev. E, 66(6), 061601-1~10 (2002)