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Creation of Intelligent Materials with a Resistance to Beam-Impact and Radiation Damage

创建具有抵抗束流冲击和辐射损伤的智能材料

基本信息

批准号：
16206097
负责人：
KAWAI Masayoshi
金额：
$ 32.12万
依托单位：
High Energy Accelerator Research Organization
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (A)
财政年份：
2004
资助国家：
日本
起止时间：
2004 至 2006
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-16206097/
关键词：
High Energy Quantum Beam Field Materials for Space Radiation Damage Damage due to Beam Impact Mechanical Alloying Grain Boundary Engineering Material Surface Improvement Post Irradiation Experiment タングステン粒界制御材ステンレス鋼タンタル被覆タングステン

项目摘要

The present work has been performed to develop intelligent materials which have strong resistance to both beam impact (or shock-wave) and radiation damage. They are required for the beam target of an intense accelerator and space applications. Main results are as follows : (1)For the tungsten target, radiation-resistant, ultra-fine grained tungsten materials was successfully developed with a mechanical alloying method, dispersing TiC into tungsten. (2)The GBE (grain boundary engineering) controlled stainless steels were developed for the purpose to overcome an inter-granular corrosion which occurs in a heat affected zone of a weld material. (3)As a coating technique for tungsten target, CrN film formation with the molten salt method has been attained to be several micro-meter thickness. (4)For liquid mercury target, synergistic effect of C and N plasma surface treatment to suppress pitting damage was prominent. High-speed camera clarified bubble behavior near mercury/glass window surfa … More ce and gave a clue of pitting problem. (5)To space application, we developed the tough AIN-TiN composite material and the intelligent material composed of niobium and aluminum that has an intelligence to stop propagation of micro-cracks created by debris attack. (7)Rapid cooling test of tantalum-clad tungsten plate fabricated with the HIP method for MW-class spallation target showed that the plate was not broken and will be endurable even in case of loss-of-coolant accident. (8)Positron lifetime measurement clarified no effect of GBE to defect formation, and did irradiation effects. (9)Post irradiation experiments for STIP-II samples which had been irradiated at the spallation target of the SINQ facility at Paul Scherrer Institut showed that the JPCA, stainless steel (SS) produced in Japan had elongation above 3 dpa, while the SS-316 irradiated at LANSCE lost elongation above 3 dpa. Future tasks are to collect more experimental data of damages, to progress a theoretical investigations and develop the simulation code system, and to develop essentially strong materials. Less

目前的工作旨在开发对束流冲击（或冲击波）和辐射损伤具有较强抵抗力的智能材料。强流加速器的束靶和空间应用都需要它们。主要研究结果如下：（1）对于钨靶，采用机械合金化方法，将TiC弥散分布于钨中，成功研制了抗辐射超细晶钨材料。（2）为了克服焊接材料的热影响区中发生的晶间腐蚀，开发了GBE（晶界工程）控制的不锈钢。(3)As一种钨靶镀膜技术，用熔盐法形成的CrN膜已达到几微米厚。（4）对于液态汞靶，C和N等离子体表面处理抑制点蚀损伤的协同效应显著。高速摄像机澄清了汞/玻璃窗表面附近的气泡行为 ...更多信息并给出了点蚀问题的线索。(5)To为了满足空间应用的需要，我们研制了坚韧的AIN-TiN复合材料和由铌和铝组成的智能材料，该智能材料具有阻止碎片攻击产生的微裂纹扩展的智能。（7）对热等静压法制备的MW级溅射靶用钽包钨板进行了快速冷却试验，试验结果表明，钽包钨板不断裂，即使发生失水事故，钽包钨板也能耐受。（8）正电子寿命测量表明GBE对缺陷的形成没有影响，但有辐照效应。（9）在Paul Scherrer Institut的SINQ设施的Spectrometer靶上辐照过的STIP-Ⅱ样品的辐照后实验表明，日本生产的JPCA不锈钢（SS）的伸长率超过3 dpa，而在LANSCE辐照过的SS-316的伸长率损失超过3 dpa。未来的工作是收集更多的损伤实验数据，进行理论研究和开发模拟代码系统，并开发本质上强大的材料。少