A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Method for preparing C/C-SiC composite material through reaction melt infiltration process by adding rare earth cerium oxide
The invention relates to a method for preparing a C/C-SiC composite material through a reaction melt infiltration process by adding rare earth cerium oxide. The method comprises the following steps: preparing dipping slurry: adding silicon carbide and cerium oxide ball-milled fine powder into butyronitrile modified phenolic resin, stirring and mixing, pouring the mixed powder into absolute ethyl alcohol and acetone solvent, dissolving, adding hexamethylenetetramine to be blended into resin solution, and mixing to obtain the dipping slurry; dipping T300 type carbon fibers in the dipping slurry, winding, airing, cutting according to needs, stacking the T300 type carbon fibers layer by layer, and performing compression molding through a hot press to prepare a carbon fiber reinforced phenolic resin composite material; carrying out high-temperature pyrolysis on the carbon fiber reinforced phenolic resin composite material in an inert gas Ar atmosphere; and performing Si infiltration treatment through an RMI process to obtain the carbon fiber reinforced ceramic matrix composite material. According to the method, the compactness of a finished product can be greatly improved, the flow stress of the material is improved, dynamic recrystallization under the high strain condition is inhibited, the wear rate is reduced, and meanwhile the thermal decomposition performance of the binder is improved.
一种添加稀土氧化铈的反应熔体浸渗法制备C/C‑SiC复合材料方法，包括以下步骤，浸渍料浆配制，在丁腈改性酚醛树脂中加入碳化硅和氧化铈球磨细粉，搅拌混合，将混合粉末倒入无水乙醇和丙酮溶剂中溶解，再加入六次甲基四胺兑为树脂溶液，混合得浸渍料浆；将T300型碳纤维通过浸渍料浆浸渍、缠绕后，晾干，根据需要将其裁剪，并层层叠加到一起经过热压机模压成型制得碳纤维增强酚醛树脂复合材料；将上述碳纤维增强酚醛树脂复合材料，经过惰性气体Ar氛围高温热解；再通过RMI工艺渗Si处理，得到碳纤维增强陶瓷基复合材料。本发明的方法可大大提高成品致密度，提高材料的流变应力、抑制在高应变条件下的动态再结晶，降低磨损率同时改善粘结剂热分解性能的作用。
Method for preparing C/C-SiC composite material through reaction melt infiltration process by adding rare earth cerium oxide
The invention relates to a method for preparing a C/C-SiC composite material through a reaction melt infiltration process by adding rare earth cerium oxide. The method comprises the following steps: preparing dipping slurry: adding silicon carbide and cerium oxide ball-milled fine powder into butyronitrile modified phenolic resin, stirring and mixing, pouring the mixed powder into absolute ethyl alcohol and acetone solvent, dissolving, adding hexamethylenetetramine to be blended into resin solution, and mixing to obtain the dipping slurry; dipping T300 type carbon fibers in the dipping slurry, winding, airing, cutting according to needs, stacking the T300 type carbon fibers layer by layer, and performing compression molding through a hot press to prepare a carbon fiber reinforced phenolic resin composite material; carrying out high-temperature pyrolysis on the carbon fiber reinforced phenolic resin composite material in an inert gas Ar atmosphere; and performing Si infiltration treatment through an RMI process to obtain the carbon fiber reinforced ceramic matrix composite material. According to the method, the compactness of a finished product can be greatly improved, the flow stress of the material is improved, dynamic recrystallization under the high strain condition is inhibited, the wear rate is reduced, and meanwhile the thermal decomposition performance of the binder is improved.
一种添加稀土氧化铈的反应熔体浸渗法制备C/C‑SiC复合材料方法，包括以下步骤，浸渍料浆配制，在丁腈改性酚醛树脂中加入碳化硅和氧化铈球磨细粉，搅拌混合，将混合粉末倒入无水乙醇和丙酮溶剂中溶解，再加入六次甲基四胺兑为树脂溶液，混合得浸渍料浆；将T300型碳纤维通过浸渍料浆浸渍、缠绕后，晾干，根据需要将其裁剪，并层层叠加到一起经过热压机模压成型制得碳纤维增强酚醛树脂复合材料；将上述碳纤维增强酚醛树脂复合材料，经过惰性气体Ar氛围高温热解；再通过RMI工艺渗Si处理，得到碳纤维增强陶瓷基复合材料。本发明的方法可大大提高成品致密度，提高材料的流变应力、抑制在高应变条件下的动态再结晶，降低磨损率同时改善粘结剂热分解性能的作用。
Method for preparing C/C-SiC composite material through reaction melt infiltration process by adding rare earth cerium oxide
一种添加稀土氧化铈的反应熔体浸渗法制备C/C-SiC复合材料方法
LIU ZHIGANG (author) / ZHAO YUNCAI (author) / WANG XIN (author)
2021-12-03
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Pressure reaction infiltration device for preparing carbon-ceramic composite material
| European Patent Office | 2021
| European Patent Office | 2022
METHOD FOR PREPARING A CERIUM CARBONATE COMPOUND AND METHOD FOR PREPARING CERIUM OXIDE
| European Patent Office | 2018
CC-ZrC-Cr3C2 composite material prepared by reactive melt infiltration method
| European Patent Office | 2020
| European Patent Office | 2021