| ABSTRACT | 第9-11页 |
| 摘要 | 第12-19页 |
| CHAPTER 1 INTRODUCTION AND LITERATURE REVIEW | 第19-51页 |
| 1.1 Introduction | 第19-20页 |
| 1.1.1 Introduction of carbon steel | 第19页 |
| 1.1.2 Electrodeposition process | 第19-20页 |
| 1.2 Graphene | 第20-23页 |
| 1.2.1 Introduction and historical background | 第20-22页 |
| 1.2.2 Recent development and properties of Graphene | 第22-23页 |
| 1.3 Introduction and general concept of composite electrodeposition | 第23页 |
| 1.4 Unique features to synthesis composite electroplating | 第23-25页 |
| 1.4.1 Operating temperature | 第24页 |
| 1.4.2 Low investment and cost | 第24页 |
| 1.4.3 Composition diversity | 第24页 |
| 1.4.4 Saving materials | 第24-25页 |
| 1.5 The classification of composite electrodeposition | 第25-28页 |
| 1.5.1 Nano composite electrodeposition | 第25页 |
| 1.5.2 Composite electrodeposition containing rare earth metals | 第25-26页 |
| 1.5.3 Composite electroplating of functionally gradient materials | 第26-28页 |
| 1.5.4 Other special features of composite electrodeposition | 第28页 |
| 1.6 Reaction mechanism of composite electrodeposition | 第28-30页 |
| 1.7 Influencing factors of composite electrodeposition | 第30-37页 |
| 1.7.1 Pretreatment of plating process | 第31页 |
| 1.7.2 Dispersion of nanoparticles | 第31-33页 |
| 1.7.3 Addition of nanoparticles | 第33-34页 |
| 1.7.4 Stirring method and stirring speed during plating process | 第34-35页 |
| 1.7.5 Cathode current density | 第35页 |
| 1.7.6 The pH Value | 第35-36页 |
| 1.7.7 Plating temperature | 第36页 |
| 1.7.8 Plating time | 第36-37页 |
| 1.8 Current development in nanocomposite electrodeposition | 第37-45页 |
| 1.8.1 Electrodeposition of Nanocomposite | 第37-38页 |
| 1.8.2 Characteristics of nanocomposite coatings | 第38-39页 |
| 1.8.3 Current research on nanocomposite electroplating technology | 第39-45页 |
| 1.9 Development trend of composite electrodeposition | 第45-46页 |
| 1.9.1 Problem rising in nanocomposite coatings | 第45页 |
| 1.9.2 Alloy based composite electroplating | 第45-46页 |
| 1.9.3 Special types of composite coatings | 第46页 |
| 1.10 Current development in Ni-Graphene composite electrodeposition | 第46-50页 |
| 1.11 Conclusion | 第50-51页 |
| CHAPTER 2 MATERIALS AND EXPERIMENTAL METHODS | 第51-63页 |
| 2.1 Introduction | 第51-52页 |
| 2.2 Experimental methods | 第52-53页 |
| 2.2.1 Chemical reagents used in experiments | 第52页 |
| 2.2.2 Materials | 第52-53页 |
| 2.3 Preparation of nickel plating | 第53-55页 |
| 2.3.1 Sample preparation | 第53-55页 |
| 2.3.2 Electroplating experimental setup | 第55页 |
| 2.4 Composition of Ni-Graphene bath solution for electrodeposition process | 第55-58页 |
| 2.5 Concentration of graphene in bath solution | 第58页 |
| 2.6 Dispersion of graphene in plating solution | 第58页 |
| 2.7 Characterization of electrochemical performance of composite coatings | 第58-59页 |
| 2.8 Adhesion strength of composite coatings | 第59-60页 |
| 2.9 Hardness test of coatings | 第60页 |
| 2.10 Characterization and spectral study of graphene | 第60页 |
| 2.11 Structural analysis of coatings composition | 第60-61页 |
| 2.12 Conclusion | 第61-63页 |
| CHAPTER 3 SYNTHESIS AND INFLUENCING FACTORS OF NICKEL-GRAPHENE COMPOSITE ELECTRODEPOSITION | 第63-91页 |
| 3.1 Introduction | 第63页 |
| 3.2 Synthesis of Graphene Oxide | 第63-68页 |
| 3.2.1 Synthesis of graphene oxide | 第63-64页 |
| 3.2.2 Spectral study of graphene | 第64页 |
| 3.2.3 Characterization of graphene | 第64-66页 |
| 3.2.4 Mechanism of electrodeposited Ni-Graphene composite coatings | 第66-68页 |
| 3.3 The effect of graphene concentration on the properties of coatings | 第68-82页 |
| 3.3.1 The effect of graphene concentration on the carbon content of composite coatings | 第69-70页 |
| 3.3.2 The effect of graphene content on the surface morphology of composite coatings | 第70-71页 |
| 3.3.3 The effect of graphene concentration on the adhesion strength of Ni-graphene composite coatings | 第71-72页 |
| 3.3.4 The effect of graphene content on the hardness of Composite Coatings | 第72-74页 |
| 3.3.5 The effect of graphene content on the microstructure and grain size of composite coatings | 第74-78页 |
| 3.3.6 The effect of graphene content on the electrochemical performance of composite coatings | 第78-82页 |
| 3.4 The effect of deposition temperature on the properties of composite coatings | 第82-86页 |
| 3.4.1 The effect of deposition temperature on the surface morphology of composite coatings | 第83-84页 |
| 3.4.3 The effect of electrodeposition temperature on the hardness of composite coatings | 第84-85页 |
| 3.4.4 The effect of electrodeposition temperature on the electrochemical properties of the composite coatings | 第85-86页 |
| 3.5 The effect of stirring speed on the properties of composite coatings | 第86-90页 |
| 3.5.1 The effect of stirring speed on the surface morphology of composite coating | 第87-88页 |
| 3.5.2 The effect of mixing speed on the hardness of composite coatings | 第88页 |
| 3.5.3 The effect of stirring speed on the electrochemical properties of the composite coatings | 第88-90页 |
| 3.6 Conclusion | 第90-91页 |
| CHAPTER 4 THE EFFECT OF CURRENT DENSITY ON THEPROPERTIES OF NI-GRAPHENE COMPOSITE COATINGS | 第91-107页 |
| 4.1 Introduction | 第91-92页 |
| 4.2 The effect of current density on the carbon contents of composite coatings | 第92-95页 |
| 4.3 The effect of current density on the surface morphology of the coating | 第95-97页 |
| 4.4 The effect of current density on the adhesion strength of composite coatings | 第97-98页 |
| 4.5 The effect of current density on the hardness of composite coatings | 第98-99页 |
| 4.6 Effect of current density on the electrochemical performance of the compositecoatings | 第99-101页 |
| 4.7 Effect of current density on the erosion corrosion behavior of Ni-graphene compositecoatings | 第101-105页 |
| 4.8 Conclusion | 第105-107页 |
| CHAPTER 5 EFFECT OF SURFACTANT ON THE PROPERTIES OFNICKEL-GRAPHENE COMPOSITE COATINGS | 第107-119页 |
| 5.1 Introduction | 第107-108页 |
| 5.2 Effect of surfactant on the content of carbon in composite coatings | 第108-109页 |
| 5.3 Effect of surfactant on the surface morphology of composite coatings | 第109-111页 |
| 5.4 Effect of surfactant on the microstructure of composite coatings | 第111-114页 |
| 5.5 Effect of surfactant on the hardness of nickel-graphene composite coatings | 第114-115页 |
| 5.6 Effect of surfactant on the adhesion strength of the composite coatings | 第115-116页 |
| 5.7 Effect of surfactant on the electrochemical performance of the composite coatings | 第116-117页 |
| 5.8 Conclusion | 第117-119页 |
| CHAPTER 6 SUMMARY OF THESIS | 第119-123页 |
| REFERENCES | 第123-133页 |
| ACKNOWLEDGEMENTS | 第133-137页 |
| 导师简介 | 第137-139页 |
| PROFESSIONAL SUMMARY OF SUPERVISOR | 第139-141页 |
| PROFESSIONAL SUMMARY OF AUTHOR | 第141-142页 |
| 附件 | 第142-143页 |
