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A platform for research: civil engineering, architecture and urbanism
High-entropy ceramic aerogel material as well as preparation method and application thereof
The invention provides a high-entropy ceramic aerogel material as well as a preparation method and application thereof. The high-entropy ceramic aerogel material comprises a rare-earth-based high-entropy ceramic material and a YSZ (Yttria Stabilized Zirconia) fiber matrix material, the high-entropy ceramic aerogel material exists in a stable fluorite type structure at the room temperature, multiple rare earth elements are evenly distributed, compared with a traditional aerogel material, the high-entropy ceramic aerogel material has the low heat conductivity, the high thermal expansion coefficient and the good high-temperature stability, the normal-temperature heat conductivity of the high-entropy ceramic aerogel material is lower than 0.030 W/(m.K), and the high-entropy ceramic aerogel material has the good high-temperature stability. And the heat conductivity coefficient at 600 DEG C is lower than 0.050 W/(m.K).
本发明提供了一种高熵陶瓷气凝胶材料及其制备方法与应用，所述高熵陶瓷气凝胶材料包括稀土基高熵陶瓷材料和YSZ纤维基体材料；本发明所述高熵陶瓷气凝胶材料在室温下以稳定的萤石型结构存在，并且多种稀土元素分布均匀，相较于传统气凝胶材料，本发明高熵陶瓷气凝胶材料具有较低的热导率、较高的热膨胀系数以及良好的高温稳定性，其常温热导率低于0.030W/(m·K)，在600℃时导热系数低于0.050W/(m·K)。
High-entropy ceramic aerogel material as well as preparation method and application thereof
The invention provides a high-entropy ceramic aerogel material as well as a preparation method and application thereof. The high-entropy ceramic aerogel material comprises a rare-earth-based high-entropy ceramic material and a YSZ (Yttria Stabilized Zirconia) fiber matrix material, the high-entropy ceramic aerogel material exists in a stable fluorite type structure at the room temperature, multiple rare earth elements are evenly distributed, compared with a traditional aerogel material, the high-entropy ceramic aerogel material has the low heat conductivity, the high thermal expansion coefficient and the good high-temperature stability, the normal-temperature heat conductivity of the high-entropy ceramic aerogel material is lower than 0.030 W/(m.K), and the high-entropy ceramic aerogel material has the good high-temperature stability. And the heat conductivity coefficient at 600 DEG C is lower than 0.050 W/(m.K).
本发明提供了一种高熵陶瓷气凝胶材料及其制备方法与应用，所述高熵陶瓷气凝胶材料包括稀土基高熵陶瓷材料和YSZ纤维基体材料；本发明所述高熵陶瓷气凝胶材料在室温下以稳定的萤石型结构存在，并且多种稀土元素分布均匀，相较于传统气凝胶材料，本发明高熵陶瓷气凝胶材料具有较低的热导率、较高的热膨胀系数以及良好的高温稳定性，其常温热导率低于0.030W/(m·K)，在600℃时导热系数低于0.050W/(m·K)。
High-entropy ceramic aerogel material as well as preparation method and application thereof
一种高熵陶瓷气凝胶材料及其制备方法与应用
WU JINGXIN (author) / YANG FAN (author) / XUE LIYAN (author) / ZHAO ZHIGANG (author)
2023-05-16
Patent
Electronic Resource
Chinese
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