Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-toughness C/ultrahigh-temperature ceramic composite material and preparation method thereof
The invention relates to a preparation method of a high-toughness C/ultrahigh-temperature ceramic composite material. The preparation method comprises the following steps: (1) providing a carbon/carbon matrix; (2) carrying out ultrasonic mixing on the expanded boron nitride and the hafnium tantalum precursor solution under a vacuum condition to form an expanded boron nitride modified hafnium tantalum precursor solution; (3) taking the boron nitride modified hafnium tantalum precursor solution as a reactant, and reacting the reactant with the carbon/carbon matrix prepared in the step (1) through an impregnation pyrolysis method to form an expanded boron nitride toughened C/C composite material; and (4) repeating the step (3) for at least one time to obtain the boron nitride toughened C/ultrahigh-temperature ceramic matrix composite material. According to the preparation method disclosed by the invention, the matrix toughness of the C/ultra-high-temperature ceramic matrix composite material is further improved, so that the problem that the C/ultra-high-temperature ceramic matrix composite material has relatively poor mechanical properties due to relatively many matrix cracks is effectively solved.
本发明涉及一种高韧性的C/超高温陶瓷复合材料的制备方法，所述制备方法包括如下步骤：(1)提供碳/碳基体；(2)在真空条件下，将膨胀氮化硼与铪钽前驱体溶液进行超声混合，形成膨胀氮化硼改性的铪钽前驱体溶液；(3)以所述氮化硼改性的铪钽前驱体溶液作为反应物，通过浸渍裂解法与步骤(1)制得的碳/碳基体反应，形成膨胀氮化硼增韧的C/C复合材料；(4)重复步骤(3)至少一次，得到氮化硼增韧的C/超高温陶瓷基复合材料。本发明所用的制备方法进一步提高C/超高温陶瓷基复合材料的基体韧性，从而有效解决了C/超高温陶瓷基复合材料基体裂纹较多而导致力学性能较差的问题。
High-toughness C/ultrahigh-temperature ceramic composite material and preparation method thereof
The invention relates to a preparation method of a high-toughness C/ultrahigh-temperature ceramic composite material. The preparation method comprises the following steps: (1) providing a carbon/carbon matrix; (2) carrying out ultrasonic mixing on the expanded boron nitride and the hafnium tantalum precursor solution under a vacuum condition to form an expanded boron nitride modified hafnium tantalum precursor solution; (3) taking the boron nitride modified hafnium tantalum precursor solution as a reactant, and reacting the reactant with the carbon/carbon matrix prepared in the step (1) through an impregnation pyrolysis method to form an expanded boron nitride toughened C/C composite material; and (4) repeating the step (3) for at least one time to obtain the boron nitride toughened C/ultrahigh-temperature ceramic matrix composite material. According to the preparation method disclosed by the invention, the matrix toughness of the C/ultra-high-temperature ceramic matrix composite material is further improved, so that the problem that the C/ultra-high-temperature ceramic matrix composite material has relatively poor mechanical properties due to relatively many matrix cracks is effectively solved.
本发明涉及一种高韧性的C/超高温陶瓷复合材料的制备方法，所述制备方法包括如下步骤：(1)提供碳/碳基体；(2)在真空条件下，将膨胀氮化硼与铪钽前驱体溶液进行超声混合，形成膨胀氮化硼改性的铪钽前驱体溶液；(3)以所述氮化硼改性的铪钽前驱体溶液作为反应物，通过浸渍裂解法与步骤(1)制得的碳/碳基体反应，形成膨胀氮化硼增韧的C/C复合材料；(4)重复步骤(3)至少一次，得到氮化硼增韧的C/超高温陶瓷基复合材料。本发明所用的制备方法进一步提高C/超高温陶瓷基复合材料的基体韧性，从而有效解决了C/超高温陶瓷基复合材料基体裂纹较多而导致力学性能较差的问题。
High-toughness C/ultrahigh-temperature ceramic composite material and preparation method thereof
一种高韧性的C/超高温陶瓷复合材料及其制备方法
YANG LIANGWEI (Autor:in) / ZHU SHEN (Autor:in) / LIU WEI (Autor:in) / SONG HUANJUN (Autor:in) / ZHANG BAOPENG (Autor:in) / CHEN HAORAN (Autor:in) / YU XINMIN (Autor:in) / LIU JUNPENG (Autor:in) / SUN TONGCHEN (Autor:in)
02.11.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
High-toughness ultrahigh-temperature ceramic-based composite material and preparation method thereof
| Europäisches Patentamt | 2022
Ultrahigh-temperature ceramic composite material and preparation method thereof
| Europäisches Patentamt | 2024
Ultrahigh-toughness geopolymer composite material and preparation method thereof
| Europäisches Patentamt | 2023
Ultrahigh-temperature ceramic-based composite material and preparation method thereof
| Europäisches Patentamt | 2024
Ultrahigh-temperature ceramic-based composite material and preparation method thereof
| Europäisches Patentamt | 2021