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Non-stoichiometric-ratio high-entropy ceramic and preparation method thereof
The invention discloses non-stoichiometric-ratio high-entropy ceramic and a preparation method thereof, and belongs to the technical field of high-entropy ceramic. The invention provides a non-stoichiometric-ratio high-entropy ceramic, which is one of MCX, MNX and M(CN)X, wherein X is more than or equal to 0.5 and less than or equal to 0.9, MCX is a non-stoichiometric-ratio IVB, VB or VIB group transition metal carbide, MNX is a non-stoichiometric-ratio IVB, VB or VIB group transition metal nitride, and M(CN)X is a non-stoichiometric-ratio IVB, VB or VIB group transition metal covalent bond carbon nitrogen compound and is of a single-phase single-face-centered cubic crystal structure. The invention also provides a preparation method of the non-stoichiometric-ratio high-entropy ceramic. According to the invention, the sintering temperature of the high-entropy ceramic is remarkably reduced, the preparation process is simple, and industrial production is facilitated; and the non-stoichiometric-ratio high-entropy ceramic product has fine crystal grains and high density, and shows good hardness and toughness.
一种非化学计量比高熵陶瓷及其制备方法，属于高熵陶瓷技术领域。本发明提供了一种非化学计量比高熵陶瓷为MCX、MNX、M(CN)X中的一种，0.5≤X≤0.9。其中MCX为非化学计量比IVB、VB或VIB族过渡金属碳化物，MNX为非化学计量比IVB、VB或VIB族过渡金属氮化物，M(CN)X为非化学计量比IVB、VB或VIB族过渡金属共价键碳氮化合物，其为单相单一面心立方的晶体结构。还提供了一种非化学计量比高熵陶瓷的制备方法。本发明显著降低了高熵陶瓷的烧结温度，且制备工艺简单，便于工业化生产。非化学计量比高熵陶瓷产品具有细小的晶粒，高的致密度，表现出良好的硬度和韧性。
Non-stoichiometric-ratio high-entropy ceramic and preparation method thereof
The invention discloses non-stoichiometric-ratio high-entropy ceramic and a preparation method thereof, and belongs to the technical field of high-entropy ceramic. The invention provides a non-stoichiometric-ratio high-entropy ceramic, which is one of MCX, MNX and M(CN)X, wherein X is more than or equal to 0.5 and less than or equal to 0.9, MCX is a non-stoichiometric-ratio IVB, VB or VIB group transition metal carbide, MNX is a non-stoichiometric-ratio IVB, VB or VIB group transition metal nitride, and M(CN)X is a non-stoichiometric-ratio IVB, VB or VIB group transition metal covalent bond carbon nitrogen compound and is of a single-phase single-face-centered cubic crystal structure. The invention also provides a preparation method of the non-stoichiometric-ratio high-entropy ceramic. According to the invention, the sintering temperature of the high-entropy ceramic is remarkably reduced, the preparation process is simple, and industrial production is facilitated; and the non-stoichiometric-ratio high-entropy ceramic product has fine crystal grains and high density, and shows good hardness and toughness.
一种非化学计量比高熵陶瓷及其制备方法，属于高熵陶瓷技术领域。本发明提供了一种非化学计量比高熵陶瓷为MCX、MNX、M(CN)X中的一种，0.5≤X≤0.9。其中MCX为非化学计量比IVB、VB或VIB族过渡金属碳化物，MNX为非化学计量比IVB、VB或VIB族过渡金属氮化物，M(CN)X为非化学计量比IVB、VB或VIB族过渡金属共价键碳氮化合物，其为单相单一面心立方的晶体结构。还提供了一种非化学计量比高熵陶瓷的制备方法。本发明显著降低了高熵陶瓷的烧结温度，且制备工艺简单，便于工业化生产。非化学计量比高熵陶瓷产品具有细小的晶粒，高的致密度，表现出良好的硬度和韧性。
Non-stoichiometric-ratio high-entropy ceramic and preparation method thereof
一种非化学计量比高熵陶瓷及其制备方法
WANG MINGZHI (author) / ZHAI XINXUAN (author) / ZOU QIN (author) / ZHAO YUCHENG (author) / NING YANGJIN (author) / LIU SHUTONG (author)
2021-12-24
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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