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Hfnium-zirconium-carbon ternary complex-phase ceramic precursor and preparation method thereof
The invention provides a hafnium-zirconium-carbon ternary complex-phase ceramic precursor and a preparation method thereof, and belongs to the technical field of ceramic materials.The method comprises the steps that hafnium tetrachloride and alkyl sodium react in an anhydrous and oxygen-free environment, and hafnium dichloride is obtained; the preparation method comprises the following steps: reacting hafnium dichloride with sodium alkyl to generate a hafnium intermediate; reacting the hafnium intermediate with an organic solvent to generate a hafnium precursor; the preparation method comprises the following steps: reacting zirconium tetrachloride, a reducing agent and alkyl sodium containing an electron-rich group in a water-free and oxygen-free environment to obtain zirconocene chloride, and reacting zirconocene chloride, alkyl sodium and an organic solvent to generate a zirconium precursor; the preparation method comprises the following steps: carrying out copolymerization reaction on a hafnium precursor, a zirconium precursor and polyolefin, standing, and carrying out suction filtration to obtain a hafnium-zirconium-carbon ternary complex-phase ceramic precursor; the hafnium-zirconium-carbon ternary multiphase ceramic precursor disclosed by the invention is stable in high-temperature mechanical property, simple in preparation process, low in cost and high in ceramic yield, and meets the performance requirements of aerospace materials.
本发明给出了一种铪锆碳三元复相陶瓷前驱体及其制备方法，属于陶瓷材料技术领域，该方法包括：在无水无氧环境下，将四氯化铪和烷基钠的反应，得到二氯二茂铪；将二氯二茂铪和烷基钠的反应，生成铪中间体；将铪中间体和有机溶剂的反应，生成铪前驱体；在无水无氧环境下，将四氯化锆、还原剂和含富电子基团的烷基钠反应，得到二氯二茂锆将二氯二茂锆、烷基钠和有机溶剂的反应，生成锆前驱体；将铪前驱体、锆前驱体和聚烯烃的共聚反应后，静置，抽滤，得到铪锆碳三元复相陶瓷前驱体。本发明的铪锆碳三元复相陶瓷前驱体的高温力学性能稳定，制备工艺简单，成本低，且陶瓷产率高，满足航空航天材料的性能需求。
Hfnium-zirconium-carbon ternary complex-phase ceramic precursor and preparation method thereof
The invention provides a hafnium-zirconium-carbon ternary complex-phase ceramic precursor and a preparation method thereof, and belongs to the technical field of ceramic materials.The method comprises the steps that hafnium tetrachloride and alkyl sodium react in an anhydrous and oxygen-free environment, and hafnium dichloride is obtained; the preparation method comprises the following steps: reacting hafnium dichloride with sodium alkyl to generate a hafnium intermediate; reacting the hafnium intermediate with an organic solvent to generate a hafnium precursor; the preparation method comprises the following steps: reacting zirconium tetrachloride, a reducing agent and alkyl sodium containing an electron-rich group in a water-free and oxygen-free environment to obtain zirconocene chloride, and reacting zirconocene chloride, alkyl sodium and an organic solvent to generate a zirconium precursor; the preparation method comprises the following steps: carrying out copolymerization reaction on a hafnium precursor, a zirconium precursor and polyolefin, standing, and carrying out suction filtration to obtain a hafnium-zirconium-carbon ternary complex-phase ceramic precursor; the hafnium-zirconium-carbon ternary multiphase ceramic precursor disclosed by the invention is stable in high-temperature mechanical property, simple in preparation process, low in cost and high in ceramic yield, and meets the performance requirements of aerospace materials.
本发明给出了一种铪锆碳三元复相陶瓷前驱体及其制备方法，属于陶瓷材料技术领域，该方法包括：在无水无氧环境下，将四氯化铪和烷基钠的反应，得到二氯二茂铪；将二氯二茂铪和烷基钠的反应，生成铪中间体；将铪中间体和有机溶剂的反应，生成铪前驱体；在无水无氧环境下，将四氯化锆、还原剂和含富电子基团的烷基钠反应，得到二氯二茂锆将二氯二茂锆、烷基钠和有机溶剂的反应，生成锆前驱体；将铪前驱体、锆前驱体和聚烯烃的共聚反应后，静置，抽滤，得到铪锆碳三元复相陶瓷前驱体。本发明的铪锆碳三元复相陶瓷前驱体的高温力学性能稳定，制备工艺简单，成本低，且陶瓷产率高，满足航空航天材料的性能需求。
Hfnium-zirconium-carbon ternary complex-phase ceramic precursor and preparation method thereof
一种铪锆碳三元复相陶瓷前驱体及其制备方法
YE MINGXIN (author) / SHEN JIANFENG (author) / YE CHUMING (author) / LI NA (author) / REN ZHOUHONG (author) / LI SHUANGWEN (author)
2024-12-06
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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