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目前,中国原子能科学研究院ADS项目中的靶材与冷却剂的相容性研究主要针对钨与水和钨与钠的相容性特征。该研究课题的确定主要根据我院的游泳池式轻水堆将可能作为ADS验证实验装置的次临界反应堆,而钨作为中子产生靶。钠冷快堆是做为次临界反应堆的另一种选择。显然,了解钨与水和钨与钠的相容性十分重要。1 钨-钠相容性1.1 实验方法 锻造钨样品为φ3mm×13mm,纯度为 99.96％;试验设备为含特制试验段的高温静态实验装置。试验条件:温度500、600、700℃;相容时间为200、400、600、1000和1500 h;钠中氧含量为 12.6、32.2μg/g;钠中碳含量为 7μg/g;面容比为 0.05cm-1。1.2 主要结果1.2.1 样品表面微观形貌与腐蚀产物 采用光学显微镜和SEM对试验后的钨样品表面微观
At present, the research on the compatibility of target and coolant in ADS project of China Institute of Atomic Energy focuses on the compatibility of tungsten with water, tungsten and sodium. The research project is mainly based on the possibility that our pool-type light water reactor will serve as a sub-critical reactor for the ADS-verified experimental apparatus, and tungsten as a target for neutron production. Sodium-cooled fast reactors are another option for subcritical reactors. Obviously, it is important to understand the compatibility of tungsten with water and tungsten with sodium. 1 Tungsten - Sodium Compatibility 1.1 Experimental Methods Forging tungsten samples for the φ3mm × 13mm, purity of 99.96%; test equipment for the test section with high-temperature static experimental device. Test conditions: temperature 500,600,700 ℃; compatible time 200,400,600,1000 and 1500 h; sodium oxygen content of 12.6,32.2μg / g; sodium carbon content of 7μg / g; face to face ratio 0.05cm-1.1.2 The main results 1.2.1 Sample surface microstructure and corrosion products Using optical microscopy and SEM on the surface of the tungsten sample after the test microscopic