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Yongyong He

Professor

State Key Laboratory of Tribology,

Department of Mechanical Engineering

Tel:  +86 10 62787932

E-mail:heyy@mail.tsinghua.edu.cn

Office location:Room A622, Lee Shau Kee Science and Technology Building, Tsinghua University 100084



Education background

Ph.D., Precision Instruments, Southeast University, Nanjing, China, 1997.4

M.S., Mechanical Engineering, Southeast University, Nanjing, China, 1994.4

B.S., Mechanical Engineering, Nanjing Aeronautical Institute, Nanjing, China, 1991.7


Experience

Department of Mechanical Engineering, Tsinghua University, Beijing, China, Professor, 2018.12-Present, full time

Department of Mechanical Engineering, Tsinghua University, Beijing, China, Associate Professor, 2013.01-2018.11, full time

Department of Precision Instruments and Mechanology, Tsinghua University, Beijing, China, Associate Professor, 2001.08-2012.12, full time

Department of Precision Instruments and Mechanology, Tsinghua University, Beijing, China, Lecturer, 1999.12-2001.07, full time

Department of Mechanical Engineering, Shanghai Jiaotong University, Shanghai, China, Lecturer, 1997.04-1999.11, full time

Department of Aerospace Engineering, University of Bristol, UK, Visiting Scholar, 2007.12-2008.11, full time

Department of Manufacturing Engineering & Engineering Management, City University of Hong Kong, Croucher Foundation Visiting Scholar, 2003.08-2004.02, full time

Department of Manufacturing Engineering & Engineering Management, City University of Hong Kong, Senior Research Associate, 2002.06-2002.12, full time


Areas of Research Interests/ Research Projects

Surface/interface modification and performance enhancement of friction pairs; Chemical-Mechanical Planarization (CMP) and ultra-smooth surface polishing; Surface/interface damage mechanism and testing technique


Academic Achievement

1   Zhao J, Mao JY, Li YR, He YY, Luo JB. Friction-induced Nano-structural Evolution of Graphene as a Lubrication Additive. Applied Surface Science, 2018, 434: 21-27.

2   Li Y, He YY, Wang W, WJY, Zhang L, Zhu YJ, Ye QW, Plasma Nitriding of AISI 304 Stainless Steel in Cathodic and Floating Electric Potential: Influence on Morphology, Chemical Characteristics and Tribological Behavior, Journal of Materials Engineering and Performance, 2018, 27(3): 948-960.

3   Mao JY, Zhao J, Wang W, He YY, Luo J B. Influence of the Micromorphology of Reduced Graphene Oxide Sheets on Lubrication Properties as a Lubrication Additive. Tribology International, 2018, 119: 614-621.

4    Zhao J, Gao M, Ma MX, Cao XF, He YY, Wang WH, Luo JB. Influence of annealing on the tribological properties of Zr-based bulk metallic glass. Journal of Non-Crystalline Solids, 2018, 481: 94-97.

5    Wang W, He YY, Li Y, Wei B, Hu YT, Luo JB. Investigation on Inner Flow Field Characteristics of Groove Textures in Fully Lubricated Thrust Bearings. Industrial Lubrication and Tribology, 2018, 70(4): 754-763.

6    Li Y, He YY, Zhang SZ, Wang W, Zhu, YJ, Microstructure and Corrosion Resistance of Nitrogen-rich Surface Layers on AISI 304 Stainless Steel by Rapid Nitriding in a Hollow Cathode Discharge, Applied Physics A-Materials Science & Processing, 2018, 12(1):65.

7    Li Y, He YY, Zhang SZ, He XC, Wang W, Hu BG, Microstructures and Tribological Behaviour of Oxynitrided Austenitic Stainless Steel, Vacuum, 2017: 146:1-7.

8     Zhao J, Li YR, Mao J, He YY, Luo J B. Synthesis of Thermally Reduced Graphite Oxide in Sulfuric Acid and Its Application as an Efficient Lubrication Additive. Tribology International, 2017, 116: 303-309.

9     Li Y, He YY, Xiu, JJ, Wang W, Zhu, YJ, Hu BG, Wear and corrosion properties of AISI 420 martensitic stainless steel treated by active screen plasma nitriding, Surface & Coatings Technology, 2017, 329: 184-192.

10  Wang W, He YY, Zhao J, Li Y, Luo JB. Numerical Optimization of the Groove Texture Bottom Profile for Thrust Bearings, Tribology International, 2017, 109: 69-77.

11   Zhao J, Li YR, Wang YF, Mao JY, He YY, Luo JB. Mild thermal reduction of graphene oxide as a lubrication additive for friction and wear reduction, RSC Advances, 2017, 7(3): 1766-1770.

12   Zhao DW, He YY, Wang TQ, Lu XC. Comparative Study of the Lubricating Behavior Between 12-in. Copper Disk and Wafer During Chemical Mechanical Polishing, Tribology International, 2017, 105: 37-41.

13   Li YR, Zhao J, Tang C, He YY, Wang YF, Chen J, Mao JY, Zhou QQ , Wang BY, Wei F, Luo JB. Highly Exfoliated Reduced Graphite Oxide Powders as Efficient Lubricant Oil Additives, Advanced Materials Interfaces, 2016, 3(22): 1600700.

14   Zhou WB, He YY, Lu XC. Scratch deformation mechanism of copper based on acoustic emission, Insight, 2016, 256-263.

15   Zhao J, He YY, Wang YF, Wang W, Yan L, Luo JB. An investigation on the tribological properties of multilayer graphene and MoS2 nanosheets as additives used in hydraulic applications, Tribology International, 2015, 97: 14-20.

16   Jiang L, He YY, Li J, Luo JB. Passivation Kinetics of 1,2,4-Triazole in Copper Chemical Mechanical Polishing, ECS Journal of Solid State Science and Technology, 2016, 5(5): 272-279.

17   Jiang L, He YY, Liang H, Li YZ, Luo JB. Effect of Potassium Ions on Tantalum Chemical Mechanical Polishing in H2O2-Based Alkaline Slurries, ECS Journal of Solid State Science and Technology, 2016, 5(2): 100-111.

18   Jiang L, Yao WF, He YY, Cheng ZD, Yuan JL, Luo JB. An Experimental Investigation of Double-side Processing of Cylindrical Rollers Using Chemical Mechanical Polishing Technique, International Journal of Advanced Manufacturing Technology, 2016, 82(1-4): 523-534.

19   Zhou WB, He YY, Lu XC. Acoustic emission in scratch processes of metals, Insight, 2015, 57(11) : 635-642.

20   Cheng J, Wang TQ, He YY, Lu XC. Material Removal Mechanism of Copper Chemical Mechanical Polishing in a Periodate-based Slurry, Applied Surface Science, 2015, 337: 130-137.

21   Jiang L, He YY, Luo JB. Chemical mechanical polishing of steel substrate using colloidal silica-based slurries, Applied Surface Science, 2015, 330: 487-495.

22   Jiang L, He YY, Yang Y, Luo JB. Chemical mechanical polishing of stainless steel as solar cell substrate, ECS Journal of Solid State Science and Technology, 2015, 4(5): 162-170.

23   Li Y, Zhang SZ, He YY, Zhang L, Wang L. Characteristics of the Nitrided Layer Formed on AISI 304 Austenitic Stainless Steel by High Temperature Nitriding Assisted Hollow Cathode Discharge, Materials & Design, 2014, 64: 527-534.

24   Jiang L, He YY, Luo JB. Effects of pH and Oxidizer on Chemical Mechanical Polishing of AISI 1045 Steel, Tribology Letters, 2014, 56(2): 327-335.

25   Jiang L, He YY, Li YZ, Luo JB. Effect of ionic strength on ruthenium CMP in H2O2-based slurries, Applied Surface Science, 2014, 317: 332-337.

26   Jiang L, He YY, Li Y, Li YZ, Luo JB. Synergetic effect of H2O2 and glycine on cobalt CMP in weakly alkaline slurry, Microelectronic Engineering, 2014, 122: 82-86.

27   Jiang L, He YY, Niu XY, Li YZ, Luo JB. Synergetic effect of benzotriazole and non-ionic surfactant on copper chemical mechanical polishing in KIO4-based slurries, Thin Solid Films, 2014, 558: 272-278.

28   Jiang L, Lan YQ, He YY, Li Y, Li YZ, Luo JB. 1,2,4-Triazole as a corrosion inhibitor in copper chemical mechanical polishing, Thin Solid Films, 2014, 556:  395-404.

29   Jiang L, Lan YQ, He YY, Li YZ, Luo JB. Functions of Trilon® P as a polyamine in copper chemical mechanical polishing, Applied Surface Science, 2014, 288: 265-274.

30   He YY, Zhao ZKLuo TY, Lu XC, Luo JB. Failure Analysis of Journal Bearing Used in Turboset of A Power Plant, Materials & Design, 2013, 52: 923-931.

31   Zhao DW, Wang TQ, He YY, Lu XC, Kinematic Optimization for Chemical Mechanical Polishing Based On Statistical Analysis of Particle Trajectories, IEEE Transactions On Semiconductor Manufacturing, 2013, 26(4): 556-563.

32   Zhao DW, He YY, Wang TQ, Lu XC, Luo JB. Wafer Bending/orientation Characterization and Their Effects on Fluid Lubrication During Chemical Mechanical Polishing, Tribology International, 2013, 66: 330-336.

33   Wang TQ, Lu XC, Zhao DW, He YY. Contact Stress Non-uniformity of Wafer Surface for Multi-zone Chemical Mechanical Polishing Process, Science China-Technological Sciences, 2013, 56(8): 1974-1979.

34   Wang TQ, Zhao DW, He YY, Lu XC. Effect of Slurry Injection Position on Material Removal in Chemical Mechanical Planarization, International Journal of Advanced Manufacturing Technology, 2013, 67(9-12): 2903-2908.

35   Zhao DW, Wang TQ, He YY, Lu XC. Effect of Zone Pressure on Wafer Bending and Fluid Lubrication Behavior During Multi-zone CMP Process, Microelectronic Engineering, 2013, 108: 33-38.

36   Zhao ZK, He YY, Yang HF, Qu XP, Lu XC, Luo JB. Aminosilanization Nanoadhesive Layer for Nanoelectric Circuits with Porous Ultralow Dielectric Film, ACS Applied Materials & Interfaces, 2013, 5(13): 6097-610.

37   He YY, Zhang XM. Approximate Entropy Analysis of the Acoustic Emission from Defects in Rolling Element Bearings, ASME Transaction- Journal of Vibration and Acoustics, 2012, 134( 6): 061012.

38   Zhao DW, He YY, Wang TQ, Lu XC. Effect of Kinematic Parameters and Their Coupling Relationships on Global Uniformity of Chemical-Mechanical Polishing, IEEE Transactions On Semiconductor Manufacturing, 2012, 25(3): 502-510.

39   He YY, Huang J, Zhang B. Approximate Entropy as A Nonlinear Feature Parameter for Fault Diagnosis in Rotating Machinery, Measurement Science & Technology, 2012, 23(4): 045603.

40   Zhao DW, He YY, Wang TQ, Lu XC, Luo JB. Effects of the Polishing Variables on the Wafer-Pad Interfacial Fluid Pressure in Chemical Mechanical Polishing of 12-Inch Wafer, Journal of the Electrochemical Society, 2012, 159(3): H342-H348.

41   Zhao DW, He YY, Lu XC. In Situ Measurement of Fluid Pressure at the Wafer-Pad Interface during Chemical Mechanical Polishing of 12-inch Wafer, Journal of the Electrochemical Society, 2012, 159(1): H22-H28.

42   He YY, Liu Y. Experimental Research into Time–frequency Characteristics of Cavitation Noise Using Wavelet Scalogram, Applied Acoustics, 2011, 72: 721–731.

43   He YY, Wu Y. Combining Whitening Filter and Wavelet Transform to De-noise Cavitation Noise for Cavitation State Monitoring, Insight, 2011, 53(4): 1-7.

44   Li J, Lu XC, He YY, Luo JB. Modeling the Chemical-Mechanical Synergy during Copper CMP. Journal of the Electrochemical Society, 2011, 158(2): H197-H202.

45   He YY, Zhang XM, Friswell MI. Observation of Time-frequency Characteristics of the Acoustic Emission from Defects in Rolling Element Bearings, Insight, 2010, 52(8): 412-418.

46   He YY, Zhang XM and Michael I. Friswell. Defect Diagnosis for Rolling Element Bearings Using Acoustic Emission, Journal of Vibration and Acoustic, Transaction of the ASME, 2009, 131(6): 061012.



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