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Ultrahigh-temperature ceramic material based on reactive melt infiltration and preparation method thereof
The invention belongs to the technical field of ultra-high-temperature ceramic materials, and discloses an ultra-high-temperature ceramic material based on reactive melt infiltration and a preparation method of the ultra-high-temperature ceramic material. The preparation method comprises the following steps: uniformly mixing ceramic powder, SiC powder, a carbon source and a phenolic resin solution, and then carrying out ball milling treatment to obtain uniformly mixed powder; carrying out molding treatment on the mixed powder to obtain a ceramic biscuit; and embedding the ceramic biscuit with Si powder, placing the ceramic biscuit in an infiltration furnace, and carrying out reactive melt infiltration at 1450-1700 DEG C in a vacuum environment to obtain the ultrahigh-temperature ceramic material. The superhigh-temperature ceramic material is prepared by adopting a reaction melt infiltration method, the superhigh-temperature ceramic material prepared by the method is high in density, good in performance, simple in preparation process, easy to operate, low in preparation temperature, low in cost, short in period and suitable for industrial popularization, and the defects of high preparation temperature, high cost and the like in other traditional preparation processes can be overcome.
本发明属于超高温陶瓷材料技术领域，公开一种基于反应熔体浸渗的超高温陶瓷材料及其制备方法；所述制备方法为：将陶瓷粉末、SiC粉、碳源与酚醛树脂溶液混匀，随后进行球磨处理，以获得混合均匀的混合粉体；将所述混合粉体经成型处理，获得陶瓷素坯；将所述陶瓷素坯用Si粉包埋后置于熔渗炉中，在真空环境中，于1450～1700℃下进行反应熔体渗透，即获得所述超高温陶瓷材料。本发明采用反应熔体浸渗法制备超高温陶瓷材料，该方法制备得到的超高温陶瓷材料致密度高，性能良好，制备工艺简单，易于操作，制备温度低，成本低，周期短，适宜工业推广，可克服其他传统制备工艺中制备温度高和成本高等缺点。
Ultrahigh-temperature ceramic material based on reactive melt infiltration and preparation method thereof
The invention belongs to the technical field of ultra-high-temperature ceramic materials, and discloses an ultra-high-temperature ceramic material based on reactive melt infiltration and a preparation method of the ultra-high-temperature ceramic material. The preparation method comprises the following steps: uniformly mixing ceramic powder, SiC powder, a carbon source and a phenolic resin solution, and then carrying out ball milling treatment to obtain uniformly mixed powder; carrying out molding treatment on the mixed powder to obtain a ceramic biscuit; and embedding the ceramic biscuit with Si powder, placing the ceramic biscuit in an infiltration furnace, and carrying out reactive melt infiltration at 1450-1700 DEG C in a vacuum environment to obtain the ultrahigh-temperature ceramic material. The superhigh-temperature ceramic material is prepared by adopting a reaction melt infiltration method, the superhigh-temperature ceramic material prepared by the method is high in density, good in performance, simple in preparation process, easy to operate, low in preparation temperature, low in cost, short in period and suitable for industrial popularization, and the defects of high preparation temperature, high cost and the like in other traditional preparation processes can be overcome.
本发明属于超高温陶瓷材料技术领域，公开一种基于反应熔体浸渗的超高温陶瓷材料及其制备方法；所述制备方法为：将陶瓷粉末、SiC粉、碳源与酚醛树脂溶液混匀，随后进行球磨处理，以获得混合均匀的混合粉体；将所述混合粉体经成型处理，获得陶瓷素坯；将所述陶瓷素坯用Si粉包埋后置于熔渗炉中，在真空环境中，于1450～1700℃下进行反应熔体渗透，即获得所述超高温陶瓷材料。本发明采用反应熔体浸渗法制备超高温陶瓷材料，该方法制备得到的超高温陶瓷材料致密度高，性能良好，制备工艺简单，易于操作，制备温度低，成本低，周期短，适宜工业推广，可克服其他传统制备工艺中制备温度高和成本高等缺点。
Ultrahigh-temperature ceramic material based on reactive melt infiltration and preparation method thereof
一种基于反应熔体浸渗的超高温陶瓷材料及其制备方法
LIU YONGSHENG (author) / LYU YUNLEI (author) / CAO YEJIE (author) / DONG NING (author)
2024-03-26
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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