精品文档---下载后可任意编辑ZrB2 基陶瓷的水基凝胶浇注成型及强韧化讨论的开题报告摘要ZrB2 基陶瓷作为一种高性能材料，在航空航天、核工业等领域有广泛的应用。然而，由于其高硬度和脆性，其加工难度较大。因此，本文旨在探究 ZrB2 基陶瓷的水基凝胶浇注成型技术，并对其进行强韧化讨论。首先，通过文献综述，介绍了 ZrB2 基陶瓷的性能特点、加工难度以及常见的成型方法。随后，针对水基凝胶浇注成型技术，提出了具体的讨论内容和方案，并介绍了水基凝胶的制备方法、浇注成型流程及工艺参数优化的方法。最后，以温度、压力等条件为控制变量，对 ZrB2 基陶瓷的强韧性进行试验，并分析了其断裂机理和强化机理。本讨论的成果，有望为提高 ZrB2 基陶瓷的加工效率和降低成本提供一定的参考。关键词：ZrB2 基陶瓷；水基凝胶浇注成型；强韧化；断裂机理；强化机理AbstractZrB2-based ceramics are widely used in aerospace, nuclear industry and other fields because of their high performance. However, due to their high hardness and brittleness, their processing is difficult. Therefore, this paper aims to explore the water-based gel casting technology of ZrB2-based ceramics and study the toughening of ZrB2-based ceramics. Firstly, through literature review, the performance characteristics, processing difficulties and common molding methods of ZrB2-based ceramics are introduced. Then, specific research content and plan are proposed for water-based gel casting technology, and the preparation method of water-based gel, the casting process and the method of process parameter optimization are introduced. Finally, with temperature, pressure and other conditions as control variables, the toughness of ZrB2-based ceramics is tested, and the fracture mechanism and strengthening mechanism are analyzed. The results of this study are expected to provide reference for improving the processing efficiency and reducing the cost of ZrB2-based ceramics.Keywords: ZrB2-based ceramics; water-based gel casting; toughening; fracture mechanism; strengthening mechanism.
