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Hafnium-niobium-based ternary solid solution boride conductive ceramic and preparation method and application thereof
The invention belongs to the technical field of ceramic materials, and discloses hafnium-niobium-based ternary solid solution boride conductive ceramic and a preparation method and application thereof, the molecular formula of the conductive ceramic is (HfaNbbMic) B2, a is more than or equal to 0.1 and less than or equal to 0.9, bis more than 0 and less than 0.9,c is more than 0 and less than 0.9 and a+b+c=1, and Me is Zr, Ta or Ti. The conductive ceramic is prepared by the following steps of adding HfO2, Nb, Me oxide, B4C and carbon powder into a solvent, carrying out ball milling and mixing to obtain mixed powder, carrying out die pressing to obtain a green body, putting the green body into a graphite crucible, heating to 1400-1600 DEG C, carrying out heat preservation, and carrying out vacuum heat treatment to obtain (HfaNbbMec)B2 hafnium-niobium-based ternary solid solution boride powder, heating the boride powder to 1000-1400 DEG C by adopting spark plasma sintering, introducing a protective atmosphere, heating to 1900-2100 DEG C, and calcining at the pressure of 10-100 MPa.
本发明属于陶瓷材料技术领域，公开了一种铪铌基三元固溶体硼化物导电陶瓷及其制备方法和应用，该导电陶瓷的分子式为(HfaNbbMec)B2，其中0.1≤a≤0.9，0
Hafnium-niobium-based ternary solid solution boride conductive ceramic and preparation method and application thereof
The invention belongs to the technical field of ceramic materials, and discloses hafnium-niobium-based ternary solid solution boride conductive ceramic and a preparation method and application thereof, the molecular formula of the conductive ceramic is (HfaNbbMic) B2, a is more than or equal to 0.1 and less than or equal to 0.9, bis more than 0 and less than 0.9,c is more than 0 and less than 0.9 and a+b+c=1, and Me is Zr, Ta or Ti. The conductive ceramic is prepared by the following steps of adding HfO2, Nb, Me oxide, B4C and carbon powder into a solvent, carrying out ball milling and mixing to obtain mixed powder, carrying out die pressing to obtain a green body, putting the green body into a graphite crucible, heating to 1400-1600 DEG C, carrying out heat preservation, and carrying out vacuum heat treatment to obtain (HfaNbbMec)B2 hafnium-niobium-based ternary solid solution boride powder, heating the boride powder to 1000-1400 DEG C by adopting spark plasma sintering, introducing a protective atmosphere, heating to 1900-2100 DEG C, and calcining at the pressure of 10-100 MPa.
本发明属于陶瓷材料技术领域，公开了一种铪铌基三元固溶体硼化物导电陶瓷及其制备方法和应用，该导电陶瓷的分子式为(HfaNbbMec)B2，其中0.1≤a≤0.9，0
Hafnium-niobium-based ternary solid solution boride conductive ceramic and preparation method and application thereof
一种铪铌基三元固溶体硼化物的导电陶瓷及其制备方法和应用
ZHANG ZEXI (author) / GUO WEIMING (author) / ZHANG YAN (author) / XU LIANG (author) / LIN HUATAI (author)
2021-05-25
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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