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Gadolinium zirconate ceramic for curing TRPO simulated waste, and preparation method thereof
The invention discloses a gadolinium zirconate ceramic for curing TRPO simulated waste, and a preparation method thereof. The preparation method comprises the following steps: (1) preparing precursorpowder by solid solution of radioactive elements in a liquid manner; (2) preparing a biscuit from the precursor powder obtained in step (1) by adopting dry pressing; and (3) preparing the gadolinium zirconate ceramic for curing the TRPO simulated waste by adopting a microwave sintering method. The prepared gadolinium zirconate ceramic for curing the TRPO waste has the advantages of no block cracking, high compactness and high hardness, and still keeps a single fluorite structure when the solid solution content reaches 60%. The preparation method provides a basic reference scheme for treating high-level radioactive waste liquids, especially curing actinide nuclides with long service life.
本发明公开了一种固化TRPO模拟废物的锆酸钆陶瓷及其制备方法，该制备方法包括以下步骤：(1)通过液体方式固溶放射性元素制备前驱体粉末；(2)采用干压成型将步骤(1)得到的前驱体粉末制成素坯；(3)采用微波烧结法制得固化TRPO模拟废物的锆酸钆陶瓷，制得的固化TRPO废物的锆酸钆陶瓷，具有块状不裂、高致密、高硬度的优点，并在固溶量达到60％时仍保持单一萤石结构。该制备方法对实现处理高放废液，尤其是长寿命锕系核素的固化提供了基础参考方案。
Gadolinium zirconate ceramic for curing TRPO simulated waste, and preparation method thereof
The invention discloses a gadolinium zirconate ceramic for curing TRPO simulated waste, and a preparation method thereof. The preparation method comprises the following steps: (1) preparing precursorpowder by solid solution of radioactive elements in a liquid manner; (2) preparing a biscuit from the precursor powder obtained in step (1) by adopting dry pressing; and (3) preparing the gadolinium zirconate ceramic for curing the TRPO simulated waste by adopting a microwave sintering method. The prepared gadolinium zirconate ceramic for curing the TRPO waste has the advantages of no block cracking, high compactness and high hardness, and still keeps a single fluorite structure when the solid solution content reaches 60%. The preparation method provides a basic reference scheme for treating high-level radioactive waste liquids, especially curing actinide nuclides with long service life.
本发明公开了一种固化TRPO模拟废物的锆酸钆陶瓷及其制备方法，该制备方法包括以下步骤：(1)通过液体方式固溶放射性元素制备前驱体粉末；(2)采用干压成型将步骤(1)得到的前驱体粉末制成素坯；(3)采用微波烧结法制得固化TRPO模拟废物的锆酸钆陶瓷，制得的固化TRPO废物的锆酸钆陶瓷，具有块状不裂、高致密、高硬度的优点，并在固溶量达到60％时仍保持单一萤石结构。该制备方法对实现处理高放废液，尤其是长寿命锕系核素的固化提供了基础参考方案。
Gadolinium zirconate ceramic for curing TRPO simulated waste, and preparation method thereof
一种固化TRPO模拟废物的锆酸钆陶瓷及其制备方法
LU TIECHENG (author) / ZHANG YUTONG (author) / HUANG ZHANGYI (author) / LI QIUYAO (author) / QI JIANQI (author)
2020-04-21
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
/
B28B
Formgeben von Ton oder anderen keramischen Stoffzusammensetzungen, Schlacke oder von Mischungen, die zementartiges Material enthalten, z.B. Putzmörtel
,
SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
/
G21F
Schutz gegen Röntgenstrahlung, Gammastrahlung, Korpuskularstrahlung oder Teilchenbeschuss
,
PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT
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