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Reactive melt infiltration method for RMI buffer layer and ceramic-based composite material
The invention relates to a reaction infiltration method for a ceramic matrix composite material, which comprises the processes of pretreatment, covering of a component by a buffer layer, fusion siliconizing and material cleaning, and is characterized in that the buffer layer is fixed on the surface of a component preform to prepare the ceramic matrix composite material. The invention further relates to the RMI buffer layer which comprises the single-face oily paper, the solid gum and the C powder, and the RMI buffer layer is of a lamellar structure and sequentially comprises the single-face oily paper, the solid gum, the C powder, the solid gum and the single-face oily paper. The single-sided oily paper can also be replaced by double-sided oily paper or graphite paper or paper, and the solid gum can also be replaced by a mixture of glue powder and water. According to the reaction infiltration method, the surface of the prefabricated body is covered with the buffer layer, Si powder in the molten state is prevented from making direct contact with the surface of the component, the material sticking problem is solved, and the component quality is improved. The RMI buffer layer can prevent liquid silicon in a molten state from corroding carbon fibers, prevent the fibers from being damaged, play a role in protecting the fibers and ensure that the size of a component is not affected.
本发明涉及一种陶瓷基复合材料反应熔渗方法，包括预处理、缓冲层覆盖构件、熔融渗硅、清料的过程，将缓冲层固定在构件预制体表面，制备陶瓷基复合材料。本发明还涉及一种RMI缓冲层，包括单面油性纸、固体胶、C粉，层片状结构，依次为单面油性纸、固体胶、C粉、固体胶、单面油性纸。单面油性纸也可以由双面油性纸或石墨纸或纸替代，固体胶也可以由胶水粉与水的混合物替代。本发明反应熔渗方法在预制体表面覆盖缓冲层，防止熔融状态的Si粉直接接触构件表面，解决粘料问题，提高了构件质量。本发明RMI缓冲层，够阻挡熔融状态的液硅侵蚀碳纤维，防止纤维受损，起到保护纤维的作用，保证构件尺寸不受影响。
Reactive melt infiltration method for RMI buffer layer and ceramic-based composite material
The invention relates to a reaction infiltration method for a ceramic matrix composite material, which comprises the processes of pretreatment, covering of a component by a buffer layer, fusion siliconizing and material cleaning, and is characterized in that the buffer layer is fixed on the surface of a component preform to prepare the ceramic matrix composite material. The invention further relates to the RMI buffer layer which comprises the single-face oily paper, the solid gum and the C powder, and the RMI buffer layer is of a lamellar structure and sequentially comprises the single-face oily paper, the solid gum, the C powder, the solid gum and the single-face oily paper. The single-sided oily paper can also be replaced by double-sided oily paper or graphite paper or paper, and the solid gum can also be replaced by a mixture of glue powder and water. According to the reaction infiltration method, the surface of the prefabricated body is covered with the buffer layer, Si powder in the molten state is prevented from making direct contact with the surface of the component, the material sticking problem is solved, and the component quality is improved. The RMI buffer layer can prevent liquid silicon in a molten state from corroding carbon fibers, prevent the fibers from being damaged, play a role in protecting the fibers and ensure that the size of a component is not affected.
本发明涉及一种陶瓷基复合材料反应熔渗方法，包括预处理、缓冲层覆盖构件、熔融渗硅、清料的过程，将缓冲层固定在构件预制体表面，制备陶瓷基复合材料。本发明还涉及一种RMI缓冲层，包括单面油性纸、固体胶、C粉，层片状结构，依次为单面油性纸、固体胶、C粉、固体胶、单面油性纸。单面油性纸也可以由双面油性纸或石墨纸或纸替代，固体胶也可以由胶水粉与水的混合物替代。本发明反应熔渗方法在预制体表面覆盖缓冲层，防止熔融状态的Si粉直接接触构件表面，解决粘料问题，提高了构件质量。本发明RMI缓冲层，够阻挡熔融状态的液硅侵蚀碳纤维，防止纤维受损，起到保护纤维的作用，保证构件尺寸不受影响。
Reactive melt infiltration method for RMI buffer layer and ceramic-based composite material
一种RMI缓冲层和陶瓷基复合材料反应熔渗方法
WANG PENG (author) / JIA YI (author) / ZHANG JIANPING (author) / XU JIANFENG (author) / LI RENYI (author) / WU YAMING (author)
2024-04-30
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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