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High-entropy ceramic material with high thermal expansion coefficient and preparation method

ZHAO XIAOBING / MA YANG

The invention relates to the technical field of high-entropy ceramic materials, in particular to a high-entropy ceramic material with a high thermal expansion coefficient and a preparation method. According to the invention, nitrate of trivalent rare earth elements (La, Sm, Eu, Gd, Er, Yb, Y, Zr, Ce, Pr, Tb and the like) is taken as a raw material, a hydrothermal method and a sintering reaction method are combined to prepare the high-entropy ceramic powder, lattice energy is reduced by utilizing a high-entropy design so as to improve a thermal expansion coefficient, and the high-entropy ceramic powder has lower thermal conductivity and good high-temperature phase stability.

本发明涉及高熵陶瓷材料技术领域，具体涉及一种高热膨胀系数高熵陶瓷材料及制备方法。本发明以三价稀土元素(La、Sm、Eu、Gd、Er、Yb、Y、Zr、Ce、Pr、Tb、等元素)的硝酸盐为原料，采用水热法、烧结反应法结合制备高熵陶瓷粉体，利用高熵化设计降低了晶格能进而提高了热膨胀系数，并具有更低的热导率、良好的高温相稳定性。

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High-entropy ceramic material with high thermal expansion coefficient and preparation method

ZHAO XIAOBING / MA YANG

The invention relates to the technical field of high-entropy ceramic materials, in particular to a high-entropy ceramic material with a high thermal expansion coefficient and a preparation method. According to the invention, nitrate of trivalent rare earth elements (La, Sm, Eu, Gd, Er, Yb, Y, Zr, Ce, Pr, Tb and the like) is taken as a raw material, a hydrothermal method and a sintering reaction method are combined to prepare the high-entropy ceramic powder, lattice energy is reduced by utilizing a high-entropy design so as to improve a thermal expansion coefficient, and the high-entropy ceramic powder has lower thermal conductivity and good high-temperature phase stability.

本发明涉及高熵陶瓷材料技术领域，具体涉及一种高热膨胀系数高熵陶瓷材料及制备方法。本发明以三价稀土元素(La、Sm、Eu、Gd、Er、Yb、Y、Zr、Ce、Pr、Tb、等元素)的硝酸盐为原料，采用水热法、烧结反应法结合制备高熵陶瓷粉体，利用高熵化设计降低了晶格能进而提高了热膨胀系数，并具有更低的热导率、良好的高温相稳定性。

High-entropy ceramic material with high thermal expansion coefficient and preparation method

ZHAO XIAOBING / MA YANG

The invention relates to the technical field of high-entropy ceramic materials, in particular to a high-entropy ceramic material with a high thermal expansion coefficient and a preparation method. According to the invention, nitrate of trivalent rare earth elements (La, Sm, Eu, Gd, Er, Yb, Y, Zr, Ce, Pr, Tb and the like) is taken as a raw material, a hydrothermal method and a sintering reaction method are combined to prepare the high-entropy ceramic powder, lattice energy is reduced by utilizing a high-entropy design so as to improve a thermal expansion coefficient, and the high-entropy ceramic powder has lower thermal conductivity and good high-temperature phase stability.

本发明涉及高熵陶瓷材料技术领域，具体涉及一种高热膨胀系数高熵陶瓷材料及制备方法。本发明以三价稀土元素(La、Sm、Eu、Gd、Er、Yb、Y、Zr、Ce、Pr、Tb、等元素)的硝酸盐为原料，采用水热法、烧结反应法结合制备高熵陶瓷粉体，利用高熵化设计降低了晶格能进而提高了热膨胀系数，并具有更低的热导率、良好的高温相稳定性。

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Titel:

High-entropy ceramic material with high thermal expansion coefficient and preparation method

Weitere Titelangaben:

一种高热膨胀系数高熵陶瓷材料及制备方法

Beteiligte:

ZHAO XIAOBING (Autor:in) / MA YANG (Autor:in)

Erscheinungsdatum:

21.06.2024

Medientyp:

Patent

Format:

Elektronische Ressource

Sprache:

Chinesisch

Klassifikation:

IPC: C04B Kalk , LIME

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