4-11 Study on Radiation Effect of SiC Fiber

• 作者: Niu Lijuan Sun Jianrong Wang Zhiguang
• 来源期刊: 中国科学院近代物理研究所和兰州重离子研究装置年报：英文版
• 学科: 物理学
• 年，卷（期）: 2016,（1）
• 页码范围: 123-123
• 页数: 1页
• 分类号: O4

摘要

SiC fiber has been considered a reinforcement for nuclear systems because it do not react with base materials such as metals,ceramics,polymers under high temperature,and has excellent properties such as high hardness,wear resistance,high temperature resistance,corrosion resistance,oxidation resistance,low thermal expansion coefficient and heat conduction performance.It is necessary to study the performance of SiC fiber under irradiation.The SRIM 2008 code was used to assess the damage induced in the material,as shown in Fig.1.The displacement threshold energies for C and Si sublattices were,respectively equal to 20 and 35 eV[1].Calculations show that 246.8 MeV Ar^12+ions have a projected range of about 52.8μm in SiC fiber which is larger than the fiber diameter.The irradiation lead to a total fluence of 3.57×10^16 ions/cm^2.