项目名称： 具有不同尺度Ag析出相的Ti-Ta-Ag合金的放电等离子体烧结合成机理及生物相容性研究

项目编号： No.51501077

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： 张俊敏

作者单位： 昆明贵金属研究所

项目金额： 20万元

中文摘要： 发展无Al、无V、同时具有良好综合力学及生物相容性能的新型Ti合金，以之取代Ti-6Al-4V合金已成为生物医用金属材料的重点研发方向之一。本项目围绕提高生物医用Ti合金的力学及生物相容性能而开展应用基础研究工作。拟采用球磨混合、放电等离子体烧结技术(SPS)合成Ti-Ta-Ag合金；研究具有不同晶粒尺寸及不同尺度Ag析出相的Ti-Ta-Ag合金的可控制备；研究Ti-Ta-Ag合金不同微观结构与其力学性能、抗腐蚀性关联性；探索Ti-Ta-Ag合金结构与生物相容性之间相互影响关系；阐明SPS过程中Ag析出相的形成机理。通过研究分析，确立具有良好综合力学及生物相容性能的Ti-Ta-Ag合金的微观结构调控原则。研究力求在探索Ti合金的组合创新制备方法，获得合金新结构和新性质等方面有所突破。从而引导具有良好综合性能Ti合金制备方法的发展，为生物金属材料的发展提供新思路。

中文关键词： 骨修复材料；生物相容性；Ti合金；析出相；放电等离子体烧结

英文摘要： The development of new Ti alloys (without Al and V) with excellent mechanical properties and biocompability to replace Ti-6Al-4V alloys has become one of the important research directions of biomedical metal materials. The basic research of the project will carry out around Improving the mechanical and biocompatible properties of biomedical Ti alloy. we proposed to synthesis Ti-Ta-Ag alloys by ball milling and spark plasma sintering (SPS). The research of the project will concentrate on the controllable preparation of Ti-Ta-Ag alloy with different grain size and different scales Ag precipitated phase by SPS. The Correlation of microstructure and its mechanical properties and antibacterial properties of Ti-Ta-Ag alloy will be studied. The relationship between microstructure and biocompatible properties will also be investigated. The formation mechanism of different size of Ag precipitation will be clarified. The structure controlling rules of Ti-Ta-Ag alloy with excellent mechanical properties and biocompability will be estabished by researching the scientific problems mentioned above. We hope we can get some break through in the combined preparation methods of Ti alloys, and obtain novel alloy structure and properties. We also hope to lead the development of Ti alloys with excellent over-all properties, and to provide some original ideas for the development of metal biomaterials.

英文关键词： bone repair materials;biocompatibility;Ti alloys;precipitation;spark plasma sintering