Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of high-performance carbide superhigh-temperature ceramic precursor
The invention discloses a preparation method of a high-performance carbide superhigh-temperature ceramic precursor, which is specifically implemented according to the following steps: step 1, dissolving 0.1 mol of metal chloride in an ethanol solution, reacting to generate a metal alkoxide solution, and then adding acetylacetone to obtain a mixed solution A; step 2, dissolving a carbon source in an ethanol solution to obtain a carbon source solution, and then pouring the carbon source solution into the mixed solution A obtained in the step 1 to obtain a mixed solution B; step 3, in an argon atmosphere, heating and stirring the mixed solution B obtained in the step 2, and evaporating the solvent to realize cross-linking curing of the metal ions and the carbon source; and step 4, drying the obtained precursor in a vacuum environment to obtain the carbide organic ceramic precursor. The method provided by the invention solves the problems of low ceramic yield and high oxygen content of the superhigh-temperature ceramic precursor in the prior art, and the prepared precursor has high ceramic yield.
本发明公开了高性能碳化物超高温陶瓷前驱体的制备方法，具体按照以下步骤实施：步骤1，将0.1mol金属氯化物溶于乙醇溶液中，反应生成金属醇盐溶液，随后加入乙酰丙酮，得到混合溶液A；步骤2，将碳源溶于乙醇溶液中，获得碳源溶液，随后将碳源溶液倒入步骤1所得混合溶液A中，得到混合溶液B；步骤3，在氩气气氛下，加热并搅拌步骤2所得混合溶液B，蒸发溶剂，实现金属离子与碳源的交联固化；步骤4，在真空环境下，对所得前驱体进行干燥，得到碳化物有机陶瓷前驱体。本发明方法解决了现有技术中存在的超高温陶瓷前驱体陶瓷产率低及含氧量高的问题，所制备的前驱体具有高的陶瓷收率。
Preparation method of high-performance carbide superhigh-temperature ceramic precursor
The invention discloses a preparation method of a high-performance carbide superhigh-temperature ceramic precursor, which is specifically implemented according to the following steps: step 1, dissolving 0.1 mol of metal chloride in an ethanol solution, reacting to generate a metal alkoxide solution, and then adding acetylacetone to obtain a mixed solution A; step 2, dissolving a carbon source in an ethanol solution to obtain a carbon source solution, and then pouring the carbon source solution into the mixed solution A obtained in the step 1 to obtain a mixed solution B; step 3, in an argon atmosphere, heating and stirring the mixed solution B obtained in the step 2, and evaporating the solvent to realize cross-linking curing of the metal ions and the carbon source; and step 4, drying the obtained precursor in a vacuum environment to obtain the carbide organic ceramic precursor. The method provided by the invention solves the problems of low ceramic yield and high oxygen content of the superhigh-temperature ceramic precursor in the prior art, and the prepared precursor has high ceramic yield.
本发明公开了高性能碳化物超高温陶瓷前驱体的制备方法，具体按照以下步骤实施：步骤1，将0.1mol金属氯化物溶于乙醇溶液中，反应生成金属醇盐溶液，随后加入乙酰丙酮，得到混合溶液A；步骤2，将碳源溶于乙醇溶液中，获得碳源溶液，随后将碳源溶液倒入步骤1所得混合溶液A中，得到混合溶液B；步骤3，在氩气气氛下，加热并搅拌步骤2所得混合溶液B，蒸发溶剂，实现金属离子与碳源的交联固化；步骤4，在真空环境下，对所得前驱体进行干燥，得到碳化物有机陶瓷前驱体。本发明方法解决了现有技术中存在的超高温陶瓷前驱体陶瓷产率低及含氧量高的问题，所制备的前驱体具有高的陶瓷收率。
Preparation method of high-performance carbide superhigh-temperature ceramic precursor
高性能碳化物超高温陶瓷前驱体的制备方法
ZHAO KANG (Autor:in) / ZHANG XINYUAN (Autor:in) / LI FUPING (Autor:in) / JIAO HUA (Autor:in) / TANG YUFEI (Autor:in)
08.03.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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