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Method for preparing silicon carbide/silicon nitride porous wave-absorbing ceramic from lignite
The invention relates to a method for preparing silicon carbide/silicon nitride porous wave-absorbing ceramic from lignite, and belongs to the field of wave-absorbing ceramic. The invention aims to solve the problem that the silicon carbide/silicon nitride porous wave-absorbing ceramic cannot be prepared from lignite in the prior art. The preparation method comprises the following steps: 1, ball-milling and uniformly mixing lignite, a silicon source and a foaming agent, and performing compression molding; and 2, carbonization reaction and nitridation reaction. The method is used for preparing the silicon carbide/silicon nitride porous wave-absorbing ceramic from the lignite.
一种利用褐煤制备碳化硅/氮化硅多孔吸波陶瓷的方法，它属于吸波陶瓷领域。本发明要解决现有技术无法利用褐煤制造碳化硅/氮化硅多孔吸波陶瓷的问题。制备方法：一、将褐煤、硅源及发泡剂球磨混合均匀，然后压制成型；二、碳化反应和氮化反应。本发明用于利用褐煤制备碳化硅/氮化硅多孔吸波陶瓷。
Method for preparing silicon carbide/silicon nitride porous wave-absorbing ceramic from lignite
The invention relates to a method for preparing silicon carbide/silicon nitride porous wave-absorbing ceramic from lignite, and belongs to the field of wave-absorbing ceramic. The invention aims to solve the problem that the silicon carbide/silicon nitride porous wave-absorbing ceramic cannot be prepared from lignite in the prior art. The preparation method comprises the following steps: 1, ball-milling and uniformly mixing lignite, a silicon source and a foaming agent, and performing compression molding; and 2, carbonization reaction and nitridation reaction. The method is used for preparing the silicon carbide/silicon nitride porous wave-absorbing ceramic from the lignite.
一种利用褐煤制备碳化硅/氮化硅多孔吸波陶瓷的方法，它属于吸波陶瓷领域。本发明要解决现有技术无法利用褐煤制造碳化硅/氮化硅多孔吸波陶瓷的问题。制备方法：一、将褐煤、硅源及发泡剂球磨混合均匀，然后压制成型；二、碳化反应和氮化反应。本发明用于利用褐煤制备碳化硅/氮化硅多孔吸波陶瓷。
Method for preparing silicon carbide/silicon nitride porous wave-absorbing ceramic from lignite
一种利用褐煤制备碳化硅/氮化硅多孔吸波陶瓷的方法
WANG ZHIJIANG (Autor:in) / WANG LIYAN (Autor:in) / ZHANG YUHENG (Autor:in) / SUN YUANSHUAI (Autor:in)
29.03.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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