- 聚合物的微观磨损(点-面交互的微划痕模拟与磨屑产生机制研究)
- - 作者：刘艳艳|责编:王利永//廖婧
  - 出版社：武汉理工
  - ISBN：9787562970545
  - 出版日期：2024/05/01
  - 页数：186
- 售价：32

内容大纲
聚合物在制造业、航空航天、汽车工业、医疗设备等领域中得到了广泛应用。在医用关节置换应用方面，超高分子量聚乙烯成为髋关节和膝关节置换的标准承载面材料。这种聚合物部件的宏观磨损性能源于各自的微观摩擦学。本书通过研究开发了新型微刮擦仪，即手动微刮板机和半自动微刮板机，模拟了配合面的单个粗糙度与聚合物表面的相互作用。通过了解导致磨损表面变形、表面划痕以及最终形成磨损碎片颗粒的微观过程，本书在微观尺度上推动了对坚硬粗糙度、几何形状以及划痕路径对重要聚合物表面磨损的影响机理和磨屑产生机理的理解。这为改进材料设计、降低磨损率以及提高植入物寿命提供了数据和理论支持。
作者介绍
目录
Chapter 1 Introduction: Tribology of Polymers
  1.1  Macrotribology and Microtribology
  1.2  Polymer Materials
    1.2.1  Amorphous Polymers
    1.2.2  Semi-crystalline Polymers
    1.2.3  Surface Morphology
  1.3  Polymer Wear in Orthopaedical Prostheses
  1.4  Microscratching of Polymers
    1.4.1  Principle of Microscratching
    1.4.2  Characterisation of Microscratches
    1.4.3  Debris Generation in Microscratching
    1.4.4  Microscratching and Macroscopic Wear Rate
  1.5  Aims of This Thesis
Chapter 2 Materials and Experimental Techniques
  2.1  Material Samples and Their Properties
  2.2  Sample Preparation
  2.3  Scanning Electron Microscope
    2.3.1  Principles of SEM
    2.3.2  Specifications of the Hitachi TM3000 SEM
    2.3.3  Conductive Coating of Polymer Samples
  2.4  Atomic Force Microscopy
    2.4.1  Principles of AFM
    2.4.2  NT MDT Atomic Force Microscope
  2.5  Macroscopic Wear Testing
  2.6  Summary
Chapter 3 Development of Novel Microscratching Instrumentation
  3.1  Scratching Tips
    3.1.1  Conical Geometry
    3.1.2  Cubic Corner Geometry
  3.2  Microscratching Apparatus
    3.2.1  Manual Microscratcher
    3.2.2  Semi-automated Microscratcher
  3.3  Summary
Chapter 4 Microscratching of Polyethylene Terephthalate
  4.1  Single-pass Unidirectional Microscratching
  4.2  Microscratching with Directional Change
    4.2.1  Single-pass Microscratching
    4.2.2  Multiple-pass Microscratching
  4.3  Summary
Chapter 5 Microscratching of PMMA, PTFE, PEEK and UHMWPE
  5.1  Experimental Details
  5.2  Unidirectional Microscratching
  5.3  Multiple-pass Microscratching with Directional Change
    5.3.1  Bidirectional Microscratching
    5.3.2  Square Pattern with 90° Directional Changes
    5.3.3  Multi-pass Orthogonal Intersecting Microscratching
  5.4  Scratch Deformation Mechanisms
  5.5  Summary
Chapter 6 Wear Debris Generation: Geometry Effects and Scaling
  6.1  Macroscopic Visualization

    6.1.1  Experimental Setup and Materials
    6.1.2  Visualization of the Macroscopic Scratches
  6.2  Microscratching Using a Conical Tip
    6.2.1  Characterisation of the Unidirectional Microscratch
    6.2.2  Bidirectional Conical Scratch
    6.2.3  Square Conical Microscratching
    6.2.4  Orthogonal Microscratching
  6.3  Effect of the Attack Geometry of the Scratching Tip
  6.4  Correlation of the Microtribology with Macroscopic Wear
    6.4.1  Pin-on-disk Macroscopic Wear
    6.4.2  Microscopic and Macroscopic Wear Rate
  6.5  Summary
Chapter 7 Microscratching Characterization of the Wear-in of UHMW Polyethylene in Prostheses
  7.1  Rotating Platform Knee Prostheses
  7.2  Aims of This Study
  7.3  Experimental Details
    7.3.1  Microscratching Depth Markers
    7.3.2  Static Loading Experiments
    7.3.3  Fitting the Microscratched Plugs
    7.3.4  Wear Experiment
    7.3.5  Radioisotope Tracing
  7.4  Results and Discussion
    7.4.1  Microscratches Before the Wear Experiment
    7.4.2  Microscratches Under Static Load
    7.4.3  Surface Characterisation After the Wear Experiment
  7.5  Modelling the Wear Process
  7.6  Summary
Chapter 8 Conclusions and Outlook
Bibliography

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