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Preparation method of ceramic strontium titanate isotope fuel pellet
The invention discloses a preparation method of a ceramic strontium titanate isotope fuel pellet, which comprises the following steps: by using strontium carbonate and titanium dioxide as raw materials, carrying out ball milling on the raw materials in a high-energy ball milling mode, and uniformly mixing; and directly filling the powder obtained by ball milling into a cylindrical graphite mold, performing one-time sintering and molding by adopting a hot pressing mode, and controlling the displacement of a pressure head of the graphite mold to obtain the ceramic strontium titanate isotope fuel pellet. According to the method, the high-energy ball mill is used for grinding and crushing the raw materials, atomic-scale uniform mixing is achieved, and the sintering temperature can be effectively reduced; The sintering and forming is completed in one step by using a hot press. The method is simple, convenient and efficient, and no radioactive waste liquid is generated.
本发明公开了一种陶瓷化的钛酸锶同位素燃料芯块的制备方法，该方法以碳酸锶和二氧化钛为原料，采用高能球磨的方式对原料进行球磨混匀；球磨所得粉体直接装填于圆柱形的石墨模具中，采用热压的方式进行一次性烧结和成型，控制石墨模具压头的位移，即可得陶瓷化的钛酸锶同位素燃料芯块。本方法利用高能球磨机对原材料进行研磨、破碎，实现了原子级的均匀混合，可以有效降低烧结温度；再利用热压机一步完成了烧结与成型，方法简便、高效，不产生放射性废液。
Preparation method of ceramic strontium titanate isotope fuel pellet
The invention discloses a preparation method of a ceramic strontium titanate isotope fuel pellet, which comprises the following steps: by using strontium carbonate and titanium dioxide as raw materials, carrying out ball milling on the raw materials in a high-energy ball milling mode, and uniformly mixing; and directly filling the powder obtained by ball milling into a cylindrical graphite mold, performing one-time sintering and molding by adopting a hot pressing mode, and controlling the displacement of a pressure head of the graphite mold to obtain the ceramic strontium titanate isotope fuel pellet. According to the method, the high-energy ball mill is used for grinding and crushing the raw materials, atomic-scale uniform mixing is achieved, and the sintering temperature can be effectively reduced; The sintering and forming is completed in one step by using a hot press. The method is simple, convenient and efficient, and no radioactive waste liquid is generated.
本发明公开了一种陶瓷化的钛酸锶同位素燃料芯块的制备方法，该方法以碳酸锶和二氧化钛为原料，采用高能球磨的方式对原料进行球磨混匀；球磨所得粉体直接装填于圆柱形的石墨模具中，采用热压的方式进行一次性烧结和成型，控制石墨模具压头的位移，即可得陶瓷化的钛酸锶同位素燃料芯块。本方法利用高能球磨机对原材料进行研磨、破碎，实现了原子级的均匀混合，可以有效降低烧结温度；再利用热压机一步完成了烧结与成型，方法简便、高效，不产生放射性废液。
Preparation method of ceramic strontium titanate isotope fuel pellet
一种陶瓷化的钛酸锶同位素燃料芯块的制备方法
WANG NING (author) / WU FENGCHENG (author) / XIANG QINGPEI (author) / XI ZHIGUO (author) / HAN JUN (author) / JIANG TAO (author) / LI JING (author) / XIANG YONGCHUN (author) / HAO FANHUA (author)
2021-04-09
Patent
Electronic Resource
Chinese
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