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Ultrahigh-temperature tantalum-titanium-carbon ceramic precursor and preparation method thereof
The invention provides an ultrahigh-temperature tantalum-titanium-carbon ceramic precursor and a preparation method thereof, and belongs to the technical field of high-temperature-resistant ceramic materials.The method comprises the steps that a sodium cyclopentadiene solution with the mass concentration being 5-17% is prepared; preparing tantalum trichloride; preparing a first tantalum intermediate; preparing a second tantalum intermediate; mixing an organic solvent, the first tantalum intermediate and the second tantalum intermediate, and reacting at 57-61 DEG C for 3.7-4.2 hours to obtain a tantalum carbide ceramic precursor; the preparation method comprises the following steps: dissolving titanium tetrachloride and phenolic resin 2402 in absolute ethyl alcohol, uniformly stirring at the temperature of 63-77 DEG C, and then drying to obtain a titanium carbide ceramic precursor; the tantalum carbide ceramic precursor, the titanium carbide ceramic precursor and an organic solvent are mixed, stirred and dispersed for 3.6-9.3 h, and the ultra-high-temperature tantalum-titanium-carbon ceramic precursor is obtained. The ultrahigh-temperature tantalum-titanium-carbon ceramic precursor is resistant to ablation, easy to process, high in bending strength and good in mechanical property.
本发明给出了一种超高温钽钛碳陶瓷前驱体及其制备方法，属于耐高温陶瓷材料技术领域，该方法包括：制备质量浓度为5～17％的环戊二烯钠溶液；制备三氯二茂钽；制备第一钽中间体；制备第二钽中间体；将有机溶剂、第一钽中间体和第二钽中间体进行混合，并在57～61℃反应3.7～4.2h，得到碳化钽陶瓷前驱体；将四氯化钛和酚醛树脂2402溶于无水乙醇中，在63～77℃的温度下搅拌均匀，然后干燥，得到碳化钛陶瓷前驱体；将碳化钽陶瓷前驱体、碳化钛陶瓷前驱体和有机溶剂混合搅拌分散3.6～9.3h，得到超高温钽钛碳陶瓷前驱体。本发明的超高温钽钛碳陶瓷前驱体的耐烧蚀、易加工、弯曲强度高和力学性能好。
Ultrahigh-temperature tantalum-titanium-carbon ceramic precursor and preparation method thereof
The invention provides an ultrahigh-temperature tantalum-titanium-carbon ceramic precursor and a preparation method thereof, and belongs to the technical field of high-temperature-resistant ceramic materials.The method comprises the steps that a sodium cyclopentadiene solution with the mass concentration being 5-17% is prepared; preparing tantalum trichloride; preparing a first tantalum intermediate; preparing a second tantalum intermediate; mixing an organic solvent, the first tantalum intermediate and the second tantalum intermediate, and reacting at 57-61 DEG C for 3.7-4.2 hours to obtain a tantalum carbide ceramic precursor; the preparation method comprises the following steps: dissolving titanium tetrachloride and phenolic resin 2402 in absolute ethyl alcohol, uniformly stirring at the temperature of 63-77 DEG C, and then drying to obtain a titanium carbide ceramic precursor; the tantalum carbide ceramic precursor, the titanium carbide ceramic precursor and an organic solvent are mixed, stirred and dispersed for 3.6-9.3 h, and the ultra-high-temperature tantalum-titanium-carbon ceramic precursor is obtained. The ultrahigh-temperature tantalum-titanium-carbon ceramic precursor is resistant to ablation, easy to process, high in bending strength and good in mechanical property.
本发明给出了一种超高温钽钛碳陶瓷前驱体及其制备方法，属于耐高温陶瓷材料技术领域，该方法包括：制备质量浓度为5～17％的环戊二烯钠溶液；制备三氯二茂钽；制备第一钽中间体；制备第二钽中间体；将有机溶剂、第一钽中间体和第二钽中间体进行混合，并在57～61℃反应3.7～4.2h，得到碳化钽陶瓷前驱体；将四氯化钛和酚醛树脂2402溶于无水乙醇中，在63～77℃的温度下搅拌均匀，然后干燥，得到碳化钛陶瓷前驱体；将碳化钽陶瓷前驱体、碳化钛陶瓷前驱体和有机溶剂混合搅拌分散3.6～9.3h，得到超高温钽钛碳陶瓷前驱体。本发明的超高温钽钛碳陶瓷前驱体的耐烧蚀、易加工、弯曲强度高和力学性能好。
Ultrahigh-temperature tantalum-titanium-carbon ceramic precursor and preparation method thereof
一种超高温钽钛碳陶瓷前驱体及其制备方法
YE MINGXIN (Autor:in) / SHEN JIANFENG (Autor:in) / YE CHUMING (Autor:in) / LI NA (Autor:in) / REN ZHOUHONG (Autor:in) / LI SHUANGWEN (Autor:in)
06.12.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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