Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of high-entropy boride-silicon carbide composite ceramic
The invention belongs to the technical field of ceramics, and particularly relates to a preparation method of high-entropy boride-silicon carbide composite ceramics, which comprises the following steps: mixing high-entropy boride powder and carbon source powder, and preparing a ceramic blank by adopting a ceramic forming method; embedding the ceramic green body with silicon powder, and performing liquid silicon permeation treatment in a vacuum environment to prepare the high-entropy boride-silicon carbide composite ceramic. According to the method, the high-entropy boride and the carbon source are mixed, then liquid-phase siliconizing is carried out, the process is simpler, the content of residual Si is relatively low, the high-entropy boride-silicon carbide composite ceramic with the density reaching up to 99% or above can be obtained, and the method is suitable for large-scale production and application.
本发明属于陶瓷技术领域，具体涉及一种高熵硼化物‑碳化硅复相陶瓷的制备方法，包括以下步骤：将高熵硼化物粉体与碳源粉体混合后，采用陶瓷成型方法，制备出陶瓷坯体；将所述陶瓷坯体用硅粉进行包埋，并在真空环境下进行液硅渗透处理，制得高熵硼化物‑碳化硅复相陶瓷。本发明利用高熵硼化物与碳源混合，然后进行液相渗硅，工艺更为简单，残余Si含量相对较少，且能获得致密度高达99％以上的高熵硼化物‑碳化硅复相陶瓷，适合规模化生产应用。
Preparation method of high-entropy boride-silicon carbide composite ceramic
The invention belongs to the technical field of ceramics, and particularly relates to a preparation method of high-entropy boride-silicon carbide composite ceramics, which comprises the following steps: mixing high-entropy boride powder and carbon source powder, and preparing a ceramic blank by adopting a ceramic forming method; embedding the ceramic green body with silicon powder, and performing liquid silicon permeation treatment in a vacuum environment to prepare the high-entropy boride-silicon carbide composite ceramic. According to the method, the high-entropy boride and the carbon source are mixed, then liquid-phase siliconizing is carried out, the process is simpler, the content of residual Si is relatively low, the high-entropy boride-silicon carbide composite ceramic with the density reaching up to 99% or above can be obtained, and the method is suitable for large-scale production and application.
本发明属于陶瓷技术领域，具体涉及一种高熵硼化物‑碳化硅复相陶瓷的制备方法，包括以下步骤：将高熵硼化物粉体与碳源粉体混合后，采用陶瓷成型方法，制备出陶瓷坯体；将所述陶瓷坯体用硅粉进行包埋，并在真空环境下进行液硅渗透处理，制得高熵硼化物‑碳化硅复相陶瓷。本发明利用高熵硼化物与碳源混合，然后进行液相渗硅，工艺更为简单，残余Si含量相对较少，且能获得致密度高达99％以上的高熵硼化物‑碳化硅复相陶瓷，适合规模化生产应用。
Preparation method of high-entropy boride-silicon carbide composite ceramic
一种高熵硼化物-碳化硅复相陶瓷的制备方法
LIU YONGSHENG (Autor:in) / LI WENYA (Autor:in) / CAO YEJIE (Autor:in) / DONG NING (Autor:in)
31.05.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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