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Tungstic acid rare earth-based high-entropy ceramic material for neutron control rod as well as preparation method and application of tungstic acid rare earth-based high-entropy ceramic material
The invention belongs to the field of control rod materials, and particularly relates to a rare earth tungstate-based high-entropy ceramic material for a neutron control rod as well as a preparation method and application of the rare earth tungstate-based high-entropy ceramic material. The chemical formula of the ceramic material is (Sm < 0.2 > Eu < 0.2 > Gd < 0.2 > Dy < 0.2 > RE < 0.2 >) W3O12, RE is selected from any one of La, Nd, Ho, Yb, Er, Tm, Lu, Y or Sc, preferably, RE is selected from any one of Er, Tm, Lu or Y, for example, Er or Y. In the invention, the rare earth tungstate (A2O3W12) is taken as a matrix, and an element with a relatively large neutron absorption section is selected at the site A by adopting a high-entropy strategy to be combined with an atomic radius, so that the neutron control material with excellent radiation resistance and relatively high dimensional stability is obtained.
本发明属于控制棒材料领域，尤其涉及一种用于中子控制棒的钨酸稀土基高熵陶瓷材料及其制备方法和应用。所述陶瓷材料的化学式为：(Sm0.2Eu0.2Gd0.2Dy0.2RE0.2)W3O12其中，RE选自La、Nd、Ho、Yb、Er、Tm、Lu、Y或Sc中的任意一种，优选RE选自Er、Tm、Lu或Y中的任意一种，例如为Er或Y。在本发明中，以稀土钨酸盐(A2O3W12)为基体，采用高熵策略在A位选取中子吸收截面较大的元素结合原子半径，获得具备优异抗辐照性能和较高尺寸稳定性的中子控制材料。
Tungstic acid rare earth-based high-entropy ceramic material for neutron control rod as well as preparation method and application of tungstic acid rare earth-based high-entropy ceramic material
The invention belongs to the field of control rod materials, and particularly relates to a rare earth tungstate-based high-entropy ceramic material for a neutron control rod as well as a preparation method and application of the rare earth tungstate-based high-entropy ceramic material. The chemical formula of the ceramic material is (Sm < 0.2 > Eu < 0.2 > Gd < 0.2 > Dy < 0.2 > RE < 0.2 >) W3O12, RE is selected from any one of La, Nd, Ho, Yb, Er, Tm, Lu, Y or Sc, preferably, RE is selected from any one of Er, Tm, Lu or Y, for example, Er or Y. In the invention, the rare earth tungstate (A2O3W12) is taken as a matrix, and an element with a relatively large neutron absorption section is selected at the site A by adopting a high-entropy strategy to be combined with an atomic radius, so that the neutron control material with excellent radiation resistance and relatively high dimensional stability is obtained.
本发明属于控制棒材料领域，尤其涉及一种用于中子控制棒的钨酸稀土基高熵陶瓷材料及其制备方法和应用。所述陶瓷材料的化学式为：(Sm0.2Eu0.2Gd0.2Dy0.2RE0.2)W3O12其中，RE选自La、Nd、Ho、Yb、Er、Tm、Lu、Y或Sc中的任意一种，优选RE选自Er、Tm、Lu或Y中的任意一种，例如为Er或Y。在本发明中，以稀土钨酸盐(A2O3W12)为基体，采用高熵策略在A位选取中子吸收截面较大的元素结合原子半径，获得具备优异抗辐照性能和较高尺寸稳定性的中子控制材料。
Tungstic acid rare earth-based high-entropy ceramic material for neutron control rod as well as preparation method and application of tungstic acid rare earth-based high-entropy ceramic material
一种用于中子控制棒的钨酸稀土基高熵陶瓷材料及其制备方法和应用
ZHANG JINCHENG (author) / YANG FAN (author) / HUANG MINZHONG (author)
2024-02-13
Patent
Electronic Resource
Chinese
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