| 摘 要 | 第6-9页 |
| ABSTRACT | 第9-11页 |
| LIST OF ABBREVIATIONS | 第27-28页 |
| Chapter 1 INTRODUCTION | 第28-59页 |
| 1.1 Background of the study on superlubricity | 第28-55页 |
| 1.1.1 Superlubricity and its investigative progress | 第28-39页 |
| 1.1.2 Influence factors of structural superlubricity | 第39-52页 |
| 1.1.3 Prospective applications based on structural superlubricity | 第52-55页 |
| 1.2 Effect of normal load on friction at nano- and micro-scale investigations | 第55页 |
| 1.3 Investigations on tribology-related characteristics of heterostructures based onsuperlubricity | 第55-56页 |
| 1.4 Chapter's conclusion | 第56-57页 |
| 1.5 Contents of the thesis | 第57-59页 |
| Chapter 2 SIMULTANEOUS MEASUREMENT OF APPLIED NORMAL LOAD ANDLATERAL FORCE | 第59-78页 |
| 2.1 Introduction | 第59-60页 |
| 2.2 Experimental procedure | 第60-66页 |
| 2.2.1 Sample fabrication | 第60-61页 |
| 2.2.2 Verifying if a graphite mesa possesses SRM | 第61-62页 |
| 2.2.3 Experimental method | 第62-66页 |
| 2.3 Method of calibration AFM cantilever in situ and typical obtained lateral force as wellas normal load loops | 第66-77页 |
| 2.3.1 AFM cantilever calibration | 第66-72页 |
| 2.3.2 Resolution and accuracy of measurement method | 第72-74页 |
| 2.3.3 Typical lateral force and normal force loops | 第74-77页 |
| 2.4 Chapter's conclusion | 第77-78页 |
| Chapter 3 OBSERVATION OF NORMAL-FORCE-INDEPENDENT SUPERLUBRICITYIN MESOSCOPIC GRAPHITE CONTACTS | 第78-98页 |
| 3.1 Introduction | 第78-80页 |
| 3.2 Friction force estimation method | 第80-93页 |
| 3.2.1 Representative friction force loop | 第80-83页 |
| 3.2.2 Normal-load-independent superlubricity in mesoscopic graphite contacts | 第83-89页 |
| 3.2.3 The influence of time exposed to the air of new contaminant-free bottom surfaceon friction force loop | 第89-91页 |
| 3.2.4 Variation trend of friction force with the increase of the normal load for the casesof graphite flakes without possessing SRM behaviour | 第91-93页 |
| 3.3 Effect of temperature on friction force in the case of incommensurate graphite contacts | 第93-96页 |
| 3.4 Chapter's conclusion | 第96-98页 |
| Chapter 4 TRIBOLOGY-RELATED BEHAVIOR OF HETEROSTRUCTURES BASEDON SUPERLUBRICITY OF GRAPHITE | 第98-129页 |
| 4.1 Introduction | 第99-102页 |
| 4.2 Investigation on friction behaviour of graphite flake/hydrogenated DLC heterostructure | 第102-114页 |
| 4.2.1 Transfer the SRM graphite mesa onto the DLC surface | 第102-103页 |
| 4.2.2 Experimental procedure | 第103-105页 |
| 4.2.3 Results and Discussions | 第105-114页 |
| 4.3 Size effect of graphite/DLC heterostructure on its friction behaviour | 第114-123页 |
| 4.3.1 Experimental procedure | 第116-118页 |
| 4.3.2 Results and Discussion | 第118-123页 |
| 4.4 Investigation on friction behaviour of graphite flake/mica heterostructure | 第123-127页 |
| 4.4.1 Measurement method of kinetic friction force | 第123页 |
| 4.4.2 Kinetic friction of the SRM graphite flake sliding on the mica surface | 第123-124页 |
| 4.4.3 Time aging effect (the increase of static friction)of the graphite flake sliding on themica surface | 第124-125页 |
| 4.4.4 Influence of time exposed to the air of the sample (the mica surface)on friction | 第125-127页 |
| 4.5 Chapter’s conclusion | 第127-129页 |
| Chapter 5 CONCLUSIONS | 第129-132页 |
| ACKNOWLEDGEMENTS | 第132-134页 |
| REFERENCES | 第134-146页 |
| PUBLICATIONS | 第146-147页 |
| APPENDIX A: AFM CANTILEVER CALIBRATION IN SITU | 第147-151页 |
| A.1 Deflection of the cantilever versus z-direction displacement | 第147-148页 |
| A.2 Lateral electrical signal versus lateral displacement | 第148-149页 |
| A.3 Deflection of the cantilever versus time at free-state | 第149-150页 |
| A.4 Lateral electrical signal versus lateral displacement at free-state | 第150-151页 |
| APPENDIX B: REPRESENTATIVE FRICTION FORCES OF THE SAMPLES BEFOREAND AFTER MODIFYING | 第151-155页 |
| APPENDIX C: REPRESENTATIVE FRICTION FORCES OF THE SAMPLES INDIFFERENT CONDITIONS OF TEMPERATURE BEFORE AND AFTER MODIFYING | 第155-164页 |
| C1. Exposed 10-30 minutes to the air after heating at 150℃ | 第155-158页 |
| C2. Exposed 14 days to the air | 第158-161页 |
| C3. Exposed 10-30 minutes to the air after heating at 200℃ | 第161-164页 |
