外地核物质预加热冲击实验设计 -20170525-批注.docVIP

Southwest University of Science and Technology 本科毕业设计（论文） 题目： 外地核物质预加热冲击实验设计 学生姓名: 田超 学生学号: 专 业: 核工程与核技术 指导教师: 张修路 学院(部): 国防科技学院 教务处制表 外地核物质预加热冲击实验设计 摘要 外地核物质组成和状态确定对地磁场形成机理等问题的解释有重要意义，预加热冲击实验能突破材料强度对实验压力、温度的限制，又能克服动高压实验常态出发仅能获得特定冲击压缩状态的缺点，可以获得可与外地核环境直接对比的压力和温度条件。本文Si含量6%-9%的Fe-Si体系为研究对象，基于Gruneisen状态方程Hugoniot线 关键词：外地核，雨贡纽曲线，格临爱森常数，理论计算，铁硅混合物，高压熔化曲线 外地核，高温高压，理论计算，Fe-Si，高压熔化 OUTER CORE MATERIAL PREHEATING IMPACT EXPERITMENTAL DESIGN . ABSTRACT Field of nuclear material and status to determine the geomagnetic field formation mechanism has important significance of geological issues such as preheating impact experiment can break through the material strength of static pressure, temperature, high pressure experiment and can overcome the norm out a high pressure experiment can only receive certain shock compression state shortcomings, can gain can be directly compared with foreign nuclear environment pressure and temperature conditions. For preheating the Hugoniot of the sample line and high pressure melt curve theory forecast, for the chemical composition of the sample selection and preheating temperature, impact to select parameters such as pressure, velocity of flyer and can optimize the experimental steps, have very important influence on the result of the experiment. According to the known research results show that compared with the chondritic, Si content in the mantle is relatively small, it is estimated that this could be due to the earth formed Si by mantle into the earths core, or is volatile. So this article selects the Fe - Si system as the research object, in view of the Si content is between 6% and 9% respectively of the Fe - Si system are studied, based on the Gruneisen equation of state by the pressure of the forecast of Hugoniot line preheating temperature of preheating temperature, respectively, respectively for 473 k, 673 k, 873 k and 673 k Hugonio