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Method for carrying out direct ceramization treatment on high-level waste by utilizing discharge plasma
The invention discloses a method for carrying out direct ceramization treatment on high-level waste by utilizing discharge plasma. The method comprises the following steps: 1) grinding and drying the high-level waste to obtain dry powder; and 2) putting the obtained dry powder into a graphite mold, pressurizing, directly sintering in SPS equipment at the sintering temperature of 1500-2000 DEG C, preserving heat for 3-15 minutes at the sintering temperature, and cooling to obtain the high-level waste ceramic body. Compared with a traditional sintering method, the sintering time can be greatly shortened, meanwhile, physical pressing can be conducted on the sample in the sintering process, the method has the advantages of being rapid, efficient and the like, and a high-performance ceramic body can be obtained.
本申请公开了一种利用放电等离子直接陶瓷化处理高放废物的方法，包括以下步骤：1)将高放废物研磨，干燥后得到干燥粉末；2)将得到的干燥粉末放入石墨模具加压，在SPS设备中直接进行烧结，烧结温度为1500～2000℃，在烧结温度下保温3min～15min，经冷却后得到高放废物陶瓷体。本申请相对于传统烧结方法能够大幅度缩短烧结时间，同时还能对烧结过程中的样品进行物理施压，具备快速、高效等特点，能够获得高性能的陶瓷体。
Method for carrying out direct ceramization treatment on high-level waste by utilizing discharge plasma
The invention discloses a method for carrying out direct ceramization treatment on high-level waste by utilizing discharge plasma. The method comprises the following steps: 1) grinding and drying the high-level waste to obtain dry powder; and 2) putting the obtained dry powder into a graphite mold, pressurizing, directly sintering in SPS equipment at the sintering temperature of 1500-2000 DEG C, preserving heat for 3-15 minutes at the sintering temperature, and cooling to obtain the high-level waste ceramic body. Compared with a traditional sintering method, the sintering time can be greatly shortened, meanwhile, physical pressing can be conducted on the sample in the sintering process, the method has the advantages of being rapid, efficient and the like, and a high-performance ceramic body can be obtained.
本申请公开了一种利用放电等离子直接陶瓷化处理高放废物的方法，包括以下步骤：1)将高放废物研磨，干燥后得到干燥粉末；2)将得到的干燥粉末放入石墨模具加压，在SPS设备中直接进行烧结，烧结温度为1500～2000℃，在烧结温度下保温3min～15min，经冷却后得到高放废物陶瓷体。本申请相对于传统烧结方法能够大幅度缩短烧结时间，同时还能对烧结过程中的样品进行物理施压，具备快速、高效等特点，能够获得高性能的陶瓷体。
Method for carrying out direct ceramization treatment on high-level waste by utilizing discharge plasma
利用放电等离子直接陶瓷化处理高放废物的方法
DONG FAQIN (author) / LU XIRUI (author) / SHU XIAOYAN (author) / HE XIYANG (author) / LUO FEN (author) / WU DONG (author)
2022-04-19
Patent
Electronic Resource
Chinese
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