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Preparation method of Si-based multi-component alloy bonding layer in novel environmental barrier coating
The invention provides a preparation method of a Si-based multi-component alloy bonding layer in a novel environmental barrier coating. The preparation method comprises the following steps: S1, matrix preparation: taking a SiC fiber reinforced SiC composite material as a matrix; s2, preparation of the Si-based multi-component alloy bonding layer; S21, the preparation process is carried out in a directional solidification crystal growth furnace, and the furnace comprises a quartz glass tube, a graphite crucible and a heating device; s22, adding a silicon material and an X metal material into the graphite crucible; s23, the base body is fixed to the upper portion of the graphite crucible; s24, vacuumizing the interior of the quartz glass tube; s25, cooling water is introduced, a power source is turned on, and the graphite crucible is heated through a heating device until the silicon material and the X metal material in the graphite crucible are completely molten into Si-based alloy melt with fluidity; and S26, the composite material base body where the coating is pre-grown is immersed into the melt, then the base body is gradually separated from the Si-based alloy melt through slow downward pulling of the graphite crucible, the Si-based alloy is evenly grown on the surface of the composite material, and the Si-based multi-component alloy bonding layer is prepared.
本发明提供一种新型环境障涂层中Si基多组元合金粘结层的制备方法，步骤为：S1、基体准备：以SiC纤维增强的SiC复合材料为基体；S2、Si基多组元合金粘结层的制备：S21、制备过程在定向凝固晶体生长炉中进行，该炉包括石英玻璃管、石墨坩埚和加热装置；S22、向石墨坩埚中加入硅材料和X金属材料；S23、将基体固定在石墨坩埚上方；S24、对石英玻璃管内抽真空；S25、通入冷却水，打开电源，通过加热装置加热石墨坩埚，直至石墨坩埚内硅材料和X金属材料完全熔融成具有流动性的Si基合金熔体；S26、使预生长涂层的复合材料基体浸入熔体，而后通过石墨坩埚的缓慢下拉，使基体逐渐与Si基合金熔体分离，在复合材料表面均匀生长Si基合金，制得Si基多组元合金粘结层。
Preparation method of Si-based multi-component alloy bonding layer in novel environmental barrier coating
The invention provides a preparation method of a Si-based multi-component alloy bonding layer in a novel environmental barrier coating. The preparation method comprises the following steps: S1, matrix preparation: taking a SiC fiber reinforced SiC composite material as a matrix; s2, preparation of the Si-based multi-component alloy bonding layer; S21, the preparation process is carried out in a directional solidification crystal growth furnace, and the furnace comprises a quartz glass tube, a graphite crucible and a heating device; s22, adding a silicon material and an X metal material into the graphite crucible; s23, the base body is fixed to the upper portion of the graphite crucible; s24, vacuumizing the interior of the quartz glass tube; s25, cooling water is introduced, a power source is turned on, and the graphite crucible is heated through a heating device until the silicon material and the X metal material in the graphite crucible are completely molten into Si-based alloy melt with fluidity; and S26, the composite material base body where the coating is pre-grown is immersed into the melt, then the base body is gradually separated from the Si-based alloy melt through slow downward pulling of the graphite crucible, the Si-based alloy is evenly grown on the surface of the composite material, and the Si-based multi-component alloy bonding layer is prepared.
本发明提供一种新型环境障涂层中Si基多组元合金粘结层的制备方法，步骤为：S1、基体准备：以SiC纤维增强的SiC复合材料为基体；S2、Si基多组元合金粘结层的制备：S21、制备过程在定向凝固晶体生长炉中进行，该炉包括石英玻璃管、石墨坩埚和加热装置；S22、向石墨坩埚中加入硅材料和X金属材料；S23、将基体固定在石墨坩埚上方；S24、对石英玻璃管内抽真空；S25、通入冷却水，打开电源，通过加热装置加热石墨坩埚，直至石墨坩埚内硅材料和X金属材料完全熔融成具有流动性的Si基合金熔体；S26、使预生长涂层的复合材料基体浸入熔体，而后通过石墨坩埚的缓慢下拉，使基体逐渐与Si基合金熔体分离，在复合材料表面均匀生长Si基合金，制得Si基多组元合金粘结层。
Preparation method of Si-based multi-component alloy bonding layer in novel environmental barrier coating
一种新型环境障涂层中Si基多组元合金粘结层的制备方法
JIANG DACHUAN (Autor:in) / WANG YULONG (Autor:in) / LI JIAYAN (Autor:in) / LI GUI (Autor:in) / LI AN (Autor:in)
07.06.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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