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一种极细纳米A2B2O7结构高熵陶瓷及其制备方法
本发明属于高放射性废物固化体烧结技术领域，具体提供了一种极细纳米A2B2O7结构高熵陶瓷及其制备方法，其中制备方法包括：用燃烧法制备纳米A2B2O7结构高熵陶瓷粉体；对粉体球磨后进行预压，获得生坯；将生坯装配在超高压烧结模具中形成装配体结构；将装配体结构放入烧结炉内烧结，获得所需要的高熵A2B2O7结构高熵块材。该方案可以将A2B2O7结构高熵块材的晶粒尺寸控制在100纳米直到数十纳米以下，将对高放废物固化研究，尤其锕系元素固化处理具有巨大帮助，对核能事业的发展也将形成有力支撑。
The invention belongs to the technical field of sintering of high-radioactive waste solidified bodies, and particularly provides a superfine nano A2B2O7 structure high-entropy ceramic and a preparation method thereof, and the preparation method comprises the following steps: preparing nano A2B2O7 structure high-entropy ceramic powder by using a combustion method; the powder is subjected to ball milling and then prepressed, and a green body is obtained; assembling the green body in an ultrahigh-pressure sintering mold to form an assembly body structure; and the assembly body structure is put into a sintering furnace to be sintered, and the needed high-entropy block of the high-entropy A2B2O7 structure is obtained. According to the scheme, the grain size of the A2B2O7 structure high-entropy bulk material can be controlled to be 100 nanometers to tens of nanometers or below, great help is provided for high-level waste solidification research, especially actinide element solidification treatment, and powerful support is also formed for development of nuclear energy cause.
一种极细纳米A2B2O7结构高熵陶瓷及其制备方法
本发明属于高放射性废物固化体烧结技术领域，具体提供了一种极细纳米A2B2O7结构高熵陶瓷及其制备方法，其中制备方法包括：用燃烧法制备纳米A2B2O7结构高熵陶瓷粉体；对粉体球磨后进行预压，获得生坯；将生坯装配在超高压烧结模具中形成装配体结构；将装配体结构放入烧结炉内烧结，获得所需要的高熵A2B2O7结构高熵块材。该方案可以将A2B2O7结构高熵块材的晶粒尺寸控制在100纳米直到数十纳米以下，将对高放废物固化研究，尤其锕系元素固化处理具有巨大帮助，对核能事业的发展也将形成有力支撑。
The invention belongs to the technical field of sintering of high-radioactive waste solidified bodies, and particularly provides a superfine nano A2B2O7 structure high-entropy ceramic and a preparation method thereof, and the preparation method comprises the following steps: preparing nano A2B2O7 structure high-entropy ceramic powder by using a combustion method; the powder is subjected to ball milling and then prepressed, and a green body is obtained; assembling the green body in an ultrahigh-pressure sintering mold to form an assembly body structure; and the assembly body structure is put into a sintering furnace to be sintered, and the needed high-entropy block of the high-entropy A2B2O7 structure is obtained. According to the scheme, the grain size of the A2B2O7 structure high-entropy bulk material can be controlled to be 100 nanometers to tens of nanometers or below, great help is provided for high-level waste solidification research, especially actinide element solidification treatment, and powerful support is also formed for development of nuclear energy cause.
一种极细纳米A2B2O7结构高熵陶瓷及其制备方法
27.02.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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