Processing of Ceramic/Polymer Nanocomposites Using Thermal Spray

[401052] Schadler该项目的总体目标是探索热喷涂加工的潜力，以生产独特的聚合物纳米复合材料，从而开辟新的应用领域。具体来说，该项目的目标是开发用于喷涂陶瓷纳米颗粒/聚合物涂层的燃烧火焰喷雾和高速氧燃料工艺，探索各种聚合物基质和陶瓷颗粒增强剂，以评估各种潜在应用，并为适当的应用表征涂层。该项目的科学目标是了解使用热喷涂技术形成的陶瓷/聚合物复合材料的工艺-结构-性能关系，探索这些纳米复合材料变形的微观力学，以了解导致机械性能改善的机制，并了解陶瓷表面制备对复合材料机械性能的影响。该项目的成功完成将有助于更好地理解陶瓷/聚合物纳米复合材料，这种材料具有很好的性能，包括大幅提高韧性、降低水渗透性和降低热膨胀系数。在聚合物中加入纳米级陶瓷颗粒后，耐磨性、抗拉强度和杨氏模量似乎都有所提高。

9401052 Schadler The overall goal of this project is to explore the potential for thermal spray processing to produce unique, polymer nanocomposites that could open up new applications. Specifically, the objectives of this project are to develop the combustion flame spray and high velocity oxy-fuel processes for spraying ceramic nanoparticle/polymer coatings, to explore a variety of polymer matrices and ceramic particulate reinforcements in order to assess a wide variety of potential applications, and to characterize the coating for the appropriate applications. The scientific objectives of this project are to understand the process-structure- property relationships for ceramic/polymer composites formed using thermal spray techniques, to explore the micromechanics of deformation in these nanocomposites in order to understand the mechanisms that lead to improved mechanical properties, and to understand the effect of ceramic surface preparation on the mechanical properties of the composites. Successful completion of this project could lead to a better understanding of ceramic/polymer nanocomposites, which have promising material properties including substantial increase in toughness, reduced permeability of water, and reduced coefficient of thermal expansion. Abrasion resistance, tensile strength, and Young's modulus all seem to improve with the addition of nanosize ceramic particles in the polymer.