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Preparation method of lithium hydride ceramic microspheres
The invention discloses a preparation method of lithium hydride ceramic microspheres, and belongs to the field of nuclear reactor application materials. The diameter of the prepared lithium hydride ceramic microspheres is 0.5-3 mm, the maximum sphericity degree is 99.01%, and the crushing strength is 98.25 N. According to the preparation method of the ceramic microspheres, airflow is used for blowing an object through compression of a nozzle, and the principle is that the upper surface and the lower surface of the object generate pressure difference to provide lift force to counteract gravity of the object, so that the object is in a suspended state and does not need to be supported by a container or a mold in an inert gas atmosphere. Then, the suspended lithium hydride block is heated by adjusting the laser intensity to be rapidly molten, and molten liquid drops are formed; and the liquid drops are rapidly spheroidized under blowing of argon and rapidly solidified into microspheres. The lithium hydride ceramic microsphere provided by the invention is relatively high in lithium density, can be used as a tritium breeding agent material for a tritium production blanket of a fusion reactor, is crucial to tritium self-sustaining and stable operation of the fusion reactor, and is of great significance to development and utilization of nuclear fusion energy.
本发明公开了一种氢化锂陶瓷微球的制备方法，属于核反应堆应用材料领域。所制备氢化锂陶瓷微球的直径为0.5‑3mm，球形度最大为99.01％，抗压碎强度为98.25N。该陶瓷微球的制备方法是利用气流通过喷嘴的压缩吹起物体，其原理是使物体上下表面产生压力差来提供升力抵消物体的重力，使物体处于悬浮状态，在惰性气体气氛下无需容器或模具支撑。随后通过调节激光强度加热悬浮的氢化锂块体使其快速熔融，形成熔融液滴。液滴在氩气吹动下快速球化，快速凝固成微球。本发明提供的氢化锂陶瓷微球锂密度较高，可以作为氚增殖剂材料用于聚变堆产氚包层，对于聚变堆实现氚自持和稳定运行至关重要，本发明对核聚变能源开发利用有重大意义。
Preparation method of lithium hydride ceramic microspheres
The invention discloses a preparation method of lithium hydride ceramic microspheres, and belongs to the field of nuclear reactor application materials. The diameter of the prepared lithium hydride ceramic microspheres is 0.5-3 mm, the maximum sphericity degree is 99.01%, and the crushing strength is 98.25 N. According to the preparation method of the ceramic microspheres, airflow is used for blowing an object through compression of a nozzle, and the principle is that the upper surface and the lower surface of the object generate pressure difference to provide lift force to counteract gravity of the object, so that the object is in a suspended state and does not need to be supported by a container or a mold in an inert gas atmosphere. Then, the suspended lithium hydride block is heated by adjusting the laser intensity to be rapidly molten, and molten liquid drops are formed; and the liquid drops are rapidly spheroidized under blowing of argon and rapidly solidified into microspheres. The lithium hydride ceramic microsphere provided by the invention is relatively high in lithium density, can be used as a tritium breeding agent material for a tritium production blanket of a fusion reactor, is crucial to tritium self-sustaining and stable operation of the fusion reactor, and is of great significance to development and utilization of nuclear fusion energy.
本发明公开了一种氢化锂陶瓷微球的制备方法，属于核反应堆应用材料领域。所制备氢化锂陶瓷微球的直径为0.5‑3mm，球形度最大为99.01％，抗压碎强度为98.25N。该陶瓷微球的制备方法是利用气流通过喷嘴的压缩吹起物体，其原理是使物体上下表面产生压力差来提供升力抵消物体的重力，使物体处于悬浮状态，在惰性气体气氛下无需容器或模具支撑。随后通过调节激光强度加热悬浮的氢化锂块体使其快速熔融，形成熔融液滴。液滴在氩气吹动下快速球化，快速凝固成微球。本发明提供的氢化锂陶瓷微球锂密度较高，可以作为氚增殖剂材料用于聚变堆产氚包层，对于聚变堆实现氚自持和稳定运行至关重要，本发明对核聚变能源开发利用有重大意义。
Preparation method of lithium hydride ceramic microspheres
一种氢化锂陶瓷微球的制备方法
ZHANG YINGCHUN (author) / YI BIAO (author) / SONG SHIHAO (author)
2024-06-04
Patent
Electronic Resource
Chinese
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