Wet Particulate Materials - Flow or Fracture?

大多数先进材料都是由精细颗粒形式的起始材料生产的。粉末，特别是陶瓷工程中的粉末，首先湿加工成接近最终形状。为了加工用于太阳能收集和极端热发动机应用的纳米级先进陶瓷材料，以及最大限度地减少油漆和涂料中的干燥裂纹，提高对颗粒网络断裂的理解至关重要。研究目的是确定颗粒网络强度和结构与湿粉体断裂之间的根本联系。控制行为的微观机制将进行调查，特别侧重于增韧机制，包括塑性的影响。

Most advanced materials are produced from starting materials in the form of fine particles. Powders, especially in ceramic engineering, are first processed wet into near-final shape. Improved understanding of the fracture of particle networks is critical in order to process nano-sized advanced ceramic materials for use in solar energy harvesting and extreme heat engine applications as well as minimising drying cracks in paints and coatings. The research aims to identify the fundamental link between particle network strength and structure and the fracture of wet powder bodies. The microscopic mechanisms that control the behaviour will be investigated with a particular focus on toughening mechanisms including the influence of plasticity.