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Preparation method of non-equal-ratio high-entropy silicide ceramic material
The invention relates to a preparation method of a non-equal-ratio high-entropy silicide ceramic material, which comprises the following steps: mixing Ti powder, V powder, Nb powder, Mo powder, W powder and Si powder, adding absolute ethyl alcohol as a ball milling medium, and grinding in an argon protective atmosphere to obtain mixed powder; the mixed powder is pressed and formed after being dried, and then spark plasma sintering is carried out; and after sintering is completed, cooling is conducted, and the target product Mo < 0.4 > (Ti < 0.25 > V < 0.25 > Nb < 0.25 > W < 0.25 >) < 0.6 > Si < 2 > is obtained. Through detection, the high-entropy ceramic has relatively high hardness and good oxidation resistance at high temperature, and has potential application prospects in extremely severe working conditions such as high temperature and high load.
本发明涉及一种非等比高熵硅化物陶瓷材料的制备方法，是将Ti粉、V粉、Nb粉、Mo粉、W粉和Si粉混合后，加入无水乙醇作为球磨介质，在氩气保护气氛中研磨得到混合粉末；在对混合粉末干燥后压制成型，之后进行放电等离子烧结；烧结完成后进行冷却得到目标产物Mo0.4(Ti0.25V0.25Nb0.25W0.25)0.6Si2。经检测，该高熵陶瓷具有较高的硬度并且在高温下具有良好的抗氧化性能，在高温高载等极端恶劣工况环境下具有潜在应用前景。
Preparation method of non-equal-ratio high-entropy silicide ceramic material
The invention relates to a preparation method of a non-equal-ratio high-entropy silicide ceramic material, which comprises the following steps: mixing Ti powder, V powder, Nb powder, Mo powder, W powder and Si powder, adding absolute ethyl alcohol as a ball milling medium, and grinding in an argon protective atmosphere to obtain mixed powder; the mixed powder is pressed and formed after being dried, and then spark plasma sintering is carried out; and after sintering is completed, cooling is conducted, and the target product Mo < 0.4 > (Ti < 0.25 > V < 0.25 > Nb < 0.25 > W < 0.25 >) < 0.6 > Si < 2 > is obtained. Through detection, the high-entropy ceramic has relatively high hardness and good oxidation resistance at high temperature, and has potential application prospects in extremely severe working conditions such as high temperature and high load.
本发明涉及一种非等比高熵硅化物陶瓷材料的制备方法，是将Ti粉、V粉、Nb粉、Mo粉、W粉和Si粉混合后，加入无水乙醇作为球磨介质，在氩气保护气氛中研磨得到混合粉末；在对混合粉末干燥后压制成型，之后进行放电等离子烧结；烧结完成后进行冷却得到目标产物Mo0.4(Ti0.25V0.25Nb0.25W0.25)0.6Si2。经检测，该高熵陶瓷具有较高的硬度并且在高温下具有良好的抗氧化性能，在高温高载等极端恶劣工况环境下具有潜在应用前景。
Preparation method of non-equal-ratio high-entropy silicide ceramic material
一种非等比高熵硅化物陶瓷材料的制备方法
FAN HENGZHONG (author) / ZHENG XIANDE (author) / ZHANG YONGSHENG (author) / LI HONGBIN (author) / SU YUNFENG (author) / SONG JUNJIE (author) / HU LITIAN (author)
2024-04-12
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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