TiB2基陶瓷/金属功能梯度材料高速撞击损伤行为研究

项目名称： TiB2基陶瓷/金属功能梯度材料高速撞击损伤行为研究

项目编号： No.51502338

项目类型： 青年科学基金项目

立项/批准年度： 2016

项目学科： 一般工业技术

项目作者： 黄雪刚

作者单位： 中国空气动力研究与发展中心

项目金额： 20万元

中文摘要： TiB2基复相陶瓷是一种极具发展潜力的新型陶瓷装甲防护材料，随之发展起来的TiB2基陶瓷/金属功能梯度材料可以减小陶瓷层与金属层之间声阻抗差异，削弱高速撞击过程中反射拉伸波的形成，从而极大提高防护性能。为此，本项目以TiB2基陶瓷/金属功能梯度材料为研究对象，通过静动态力学性能测试和高速撞击试验，主要研究以下内容：1）探讨TiB2基复相陶瓷的静动态力学性能，并研究其在高应变率下损伤行为；2）研究TiB2基陶瓷/金属功能梯度材料界面结构特征与动态力学行为响应；3）研究陶瓷/金属功能梯度材料在高速撞击下的结构损伤与失效行为，分析陶瓷/金属界面结构与动态损伤机制之间的耦合响应关系。预期研究成果不仅为陶瓷材料改性提供理论依据和实验支持，而且对发展陶瓷/金属梯度复合装甲具有重要的科学研究意义和工程应用价值。

中文关键词： TiB2基陶瓷；陶瓷/金属功能梯度材料；高速撞击；损伤行为；显微结构

英文摘要： TiB2-based ceramic composite is a kind of novel promising armored protective materials, the ceramic/metal functionally gradient materials designed from TiB2-based ceramic can reduce the acoustic impedance difference between the ceramic layer and the metal layer, so that the reflected extension wave of the ceramic/metal interface under high velocity impact could be diminished, and the protective performance of ceramic target can be increased accordingly. In this project, the TiB2-based ceramic/metal functionally gradient materials will be tested by high velocity impact experimenents, the main research contents in the project are as following: 1) the quasi-static and dynamic compression properties of TiB2-based ceramic are tested, and the dynamic damage mechanism under high strain rate is investigated too; 2) the dynamic mechanical response and the interfacial micstructural characteristics of the TiB2-based ceramic/metal functionally graded composites are investigated; 3) the structural damage and the failure behavior of ceramic-metal functionally graded materials under high velocity impact is investigated, while the coupled response relationship between ceramic/metal interface structure and dynamic damage mechanism is discussed too. The anticipated results can not only increase the protective performance of the ceramic composite targets, but also provide the theoretic foundation and the data support for the design and optimization of armored ceramic-metal functionally graded composites as well as the material modification of TiB2-based ceramic composites.

英文关键词： TiB2-based ceramic composites; ceramic-metal functionally graded composites ;high-velocity impact;damage behavior ;microstructure