研究领域
（1）炭材料的显微结构与缺陷、界面结构和使役过程中的结构演变的纳米原子尺度表征，主要包括：炭炭复合材料，炭纤维，炭碳化硅复合材料
（2）金属间化合物有序合金高温结构材料的显微结构、界面结构和相变研究
（3）薄膜材料、纳米材料的显微结构和界面结构
近期论文
Liu YQ, He LL, Lu XF, Xiao P, “Transmission electron microscopy study of the microstructure of unidirectional C/C composites fabricated by catalytic chemical vapor infiltration”, Carbon 2013; 51, 381-389.
Liu YQ, He LL, Lu XF, Xiao P, “Transmission electron microscopy study of the microstructure of carbon/carbon composites reinforced with in situ grown carbon nanofibers”, Carbon 2012; 50, 2424-2430.
Lin QY, Li TQ., Liu ZJ, Song Y., He LL, He ZJ, Guo QG, Ye HQ, “High-resolution TEM observations of isolated rhombohedral crystallites in graphite blocks”, Carbon 2012; 50, 2369-2371.
Zhou GH, Chen TF, He LL, Ye HQ, “In situ observation of fracture interface between an individual fiber and the pyrocarbon matrix in C/C composites”, Carbon 2012; 50, 2353-2355.
Zhou GH, Liu YQ, He LL, Guo QG, Ye HQ, “Microstructure difference between core and skin of T700 carbon fibers in heat-treated carbon/carbon composites”, Carbon 2011; 49, 2883-2892.
Lei BL, He LL, Yi MZ, Ran LP, Xu HJ, Ge YC, Peng K., “New insights into the microstructure of the friction surface layer of C/C composites”, Carbon 2011; 49, 4554-4562.
Yin CL, Huang QZ, Xie YG, Wang XF, Xie ZY, He LL, Su Z, Liu BR, “Fluffy carbon submicrospheres produced by a catalyzed solvent-thermal reaction”, Carbon 2007; 45, 1589.
Zhou GH, Yu S, He LL, Guo QG, Ye HQ, “The interpretation of X-ray diffraction from the pyrocarbon in carbon/carbon composites with comparison of TEM observations”, Phil. Mag. 2012; 92(10), 1198-1211.
林青云，李鹏，宋燕，贺连龙，郭全贵，叶恒强, “透射电镜三维重构确定中孔炭六角孔道结构”, 新型碳材料 2012; 27(1), 252-257.
Lei BL, Yi MZ, He LL, Xu HJ, Ran LP, Ge YC, Peng K, “Structural and chemical study of C/C composites before and after braking tests”, Wear 2011; 27(2), 1-6.
Yang ZQ, Chen J, He LL, Cong HT, Ye HQ, “Microstructure and grain boundary relaxation in ultrafine-grained Al/Al oxide composites”, Acta Meter 2009; 57: 3633-44.
Cheng GM, Tian YX, He LL, “Orientation relationship and interfacial structure between Nb solid solution precipitates and a-Nb5Si3 intermetallics”, J Mater. Res. 2009; 24(1): 192-7.
Chen CL, Lu W, He LL, Ye HQ, “First-principles study of deformation-induced phase transformations in Ti–Al intermetallics”, J Mater. Res. 2009; 24(5): 1662-66.
Chen CL, Lu W, He LL, Ye HQ, “Orientation relationships between TiB (B27), B2, and Ti3Al phases”, J Mater. Res. 2009; 24(5): 1688-92.
Chen CL, Lu W, Cui YY, He LL, Ye HQ, “High-resolution image simulation of overlap structures in TiAl alloy”, J Alloys & Compounds 2009; 468(1-2): 179-186.
Tian XY, Guo JT, Cheng GM, Sheng LY, Zhou LZ, He LL, Ye HQ, “Effect of growth rate on microstructure and mechanical properties in a directionally solidified Nb-silicide base alloy”, Materials and Design 2009; 30: 2274-77.
Guo JT, Tian XY, Cheng GM, Zhou LZ, He LL, Ye HQ, “Microstructural characteristics and high temperature compressiveproperties at 1623K of a directionally solidified Nb-silisides based in-situ composite” J Alloys & Compounds 2009; 470, 606-9.
梁佳淼, 周更衡, 贺连龙, “Micro- and nano-structural investigations of C/C composites”, New Carbon Mater 2008; 23(1), 69-74 (中文).
Wei L, Deng XH, Wang H, Huang HT, He LL, “Electronic structure and chemical bonding of a- and b-Ta4AlC3 phases: Full-potential calculation”, J Mater. Res. 2008; 23(9): 2350-56.
Tian, YX, Guo, JT, Sheng, LY, Cheng, GM, Zhou, LZ, He, LL, Ye, HQ, “Microstructures and mechanical properties of cast Nb-Ti-Si-Zr alloys”, Intermetallics 2008; 16(6): 807-812.