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Zirconium oxide composite ceramic material with high thermal shock resistance and preparation method thereof
The invention relates to a zirconia composite ceramic material with high thermal shock resistance and a preparation method thereof, the ceramic material comprises the following components: zircon salt, rare earth salt and a second phase, the molar ratio of zircon salt to rare earth salt is 87: 13-90: 10; the weight ratio of (zircon salt and rare earth salt) to the second phase is 96: 4-95: 5; the rare earth salt at least comprises yttrium chloride and cerium chloride, and further comprises one or a mixture of more of ytterbium chloride, lanthanum chloride, scandium chloride, gadolinium oxide and yttrium nitrate. By designing the matching of different types of rare earth stabilizers, changing the content of the second phase and controlling the phase composition of the zirconia-based ceramic, the strength and fracture toughness of the material are improved, the thermal expansion coefficient is reduced, and finally the zirconia-based composite ceramic has good thermal shock resistance.
本发明为一种高抗热震性氧化锆复合陶瓷材料及其制备方法，所述陶瓷材料包括以下组分：锆盐、稀土盐、第二相，其中：锆盐与稀土盐的摩尔比为87:13‑90:10；(锆盐+稀土盐):第二相的重量比＝96:4‑95:5；所述稀土盐至少有氯化钇和氯化铈，所述稀土盐中还包括氯化镱、氯化镧、氯化钪、氧化钆、硝酸钇中的一种或多种混合。通过设计不同种类稀土稳定剂的搭配，并改变第二相的含量，控制氧化锆基陶瓷的相组成，提高材料的强度和断裂韧性，降低热膨胀系数，最终使氧化锆基复合陶瓷具有良好的抗热震性能。
Zirconium oxide composite ceramic material with high thermal shock resistance and preparation method thereof
The invention relates to a zirconia composite ceramic material with high thermal shock resistance and a preparation method thereof, the ceramic material comprises the following components: zircon salt, rare earth salt and a second phase, the molar ratio of zircon salt to rare earth salt is 87: 13-90: 10; the weight ratio of (zircon salt and rare earth salt) to the second phase is 96: 4-95: 5; the rare earth salt at least comprises yttrium chloride and cerium chloride, and further comprises one or a mixture of more of ytterbium chloride, lanthanum chloride, scandium chloride, gadolinium oxide and yttrium nitrate. By designing the matching of different types of rare earth stabilizers, changing the content of the second phase and controlling the phase composition of the zirconia-based ceramic, the strength and fracture toughness of the material are improved, the thermal expansion coefficient is reduced, and finally the zirconia-based composite ceramic has good thermal shock resistance.
本发明为一种高抗热震性氧化锆复合陶瓷材料及其制备方法，所述陶瓷材料包括以下组分：锆盐、稀土盐、第二相，其中：锆盐与稀土盐的摩尔比为87:13‑90:10；(锆盐+稀土盐):第二相的重量比＝96:4‑95:5；所述稀土盐至少有氯化钇和氯化铈，所述稀土盐中还包括氯化镱、氯化镧、氯化钪、氧化钆、硝酸钇中的一种或多种混合。通过设计不同种类稀土稳定剂的搭配，并改变第二相的含量，控制氧化锆基陶瓷的相组成，提高材料的强度和断裂韧性，降低热膨胀系数，最终使氧化锆基复合陶瓷具有良好的抗热震性能。
Zirconium oxide composite ceramic material with high thermal shock resistance and preparation method thereof
一种高抗热震性氧化锆复合陶瓷材料及其制备方法
ZHU DONGBIN (author) / SHA XIANGCHAO (author) / WU ZHUOHONG (author)
2024-04-02
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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