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Low-thermal-expansion modified rare earth zirconate ceramic material as well as preparation method and application thereof
According to the preparation method of the low-thermal-expansion modified rare earth zirconate ceramic material, LiAlSiO4 with the negative expansion characteristic is added, the purpose that the thermal expansion coefficient can be adjusted and controlled is achieved through the superimposed effect of a composite material, and the material has the low thermal conductivity and the low thermal expansion coefficient. In addition, the sintering process adopted by the invention can ensure that xLiAlSiO4. (1-x) RE2Zr2O7 ceramic blocks with different components have relatively high density, and the components are accurate and controllable. The xLiAlSiO4. (1-x) RE2Zr2O7 ceramic block material is prepared by adopting a mature ball milling and solid phase sintering process, the preparation method is simple, the cost is low, and the xLiAlSiO4. (1-x) RE2Zr2O7 ceramic block material can be applied to the fields of thermal environment barrier coatings and the like. The invention further provides the low-thermal-expansion modified rare earth zirconate ceramic material and application thereof.
本发明提供了一种低热膨胀的改性稀土锆酸盐陶瓷材料的制备方法，本发明过加入具有负膨胀特性的LiAlSiO4，利用复合材料的叠加效应达到热膨胀系数可调控的目的，使该材料兼具低热导率和低热膨胀系数。此外，本发明采用的烧结工艺能够确保不同成分的xLiAlSiO4·(1‑x)RE2Zr2O7陶瓷块材具有较高的致密度，且成分精准可控。本发明中的xLiAlSiO4·(1‑x)RE2Zr2O7陶瓷块材采用成熟的球磨+固相烧结工艺制备，制备方法简单，成本低，可应用于热环境障涂层等领域。本发明还提供了一种低热膨胀的改性稀土锆酸盐陶瓷材料及其应用。
Low-thermal-expansion modified rare earth zirconate ceramic material as well as preparation method and application thereof
According to the preparation method of the low-thermal-expansion modified rare earth zirconate ceramic material, LiAlSiO4 with the negative expansion characteristic is added, the purpose that the thermal expansion coefficient can be adjusted and controlled is achieved through the superimposed effect of a composite material, and the material has the low thermal conductivity and the low thermal expansion coefficient. In addition, the sintering process adopted by the invention can ensure that xLiAlSiO4. (1-x) RE2Zr2O7 ceramic blocks with different components have relatively high density, and the components are accurate and controllable. The xLiAlSiO4. (1-x) RE2Zr2O7 ceramic block material is prepared by adopting a mature ball milling and solid phase sintering process, the preparation method is simple, the cost is low, and the xLiAlSiO4. (1-x) RE2Zr2O7 ceramic block material can be applied to the fields of thermal environment barrier coatings and the like. The invention further provides the low-thermal-expansion modified rare earth zirconate ceramic material and application thereof.
本发明提供了一种低热膨胀的改性稀土锆酸盐陶瓷材料的制备方法，本发明过加入具有负膨胀特性的LiAlSiO4，利用复合材料的叠加效应达到热膨胀系数可调控的目的，使该材料兼具低热导率和低热膨胀系数。此外，本发明采用的烧结工艺能够确保不同成分的xLiAlSiO4·(1‑x)RE2Zr2O7陶瓷块材具有较高的致密度，且成分精准可控。本发明中的xLiAlSiO4·(1‑x)RE2Zr2O7陶瓷块材采用成熟的球磨+固相烧结工艺制备，制备方法简单，成本低，可应用于热环境障涂层等领域。本发明还提供了一种低热膨胀的改性稀土锆酸盐陶瓷材料及其应用。
Low-thermal-expansion modified rare earth zirconate ceramic material as well as preparation method and application thereof
一种低热膨胀的改性稀土锆酸盐陶瓷材料、其制备方法及应用
ZHOU BANGYANG (author) / NIE ZIXING (author) / CUI YONGJING (author) / REN JIAQI (author) / WANG CHANGLIANG (author) / JIAO JIAN (author) / GUO MENGQIU (author) / YU BO (author)
2023-12-08
Patent
Electronic Resource
Chinese
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