Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of radiation-resistant high-entropy carbide ceramic
The invention relates to a preparation method of carbide ceramics, in particular to a preparation method of irradiation-resistant high-entropy carbide ceramics, which is used for overcoming the defects of element segregation, low compactness and weaker irradiation resistance of the existing high-entropy carbide ceramics. The preparation method of the radiation-resistant high-entropy carbide ceramic comprises the following steps: carrying out ball-milling mixing on TiC powder, TaC powder, ZrC powder and VC powder in an equal molar ratio, and then carrying out SPS sintering to obtain a (Ta0. 25Ti0. 25Zr0. 25V0. 25) C block; the (Ta0. 25Ti0. 25Zr0. 25V0. 25) C block has a high entropy effect in thermodynamics, a lattice distortion effect in structure, a hysteresis diffusion effect in dynamics and a cocktail effect in performance, so that the (Ta0. 25Ti0. 25Zr0. 25V0. 25) C block has excellent performances such as high hardness, high strength and oxidation resistance. Meanwhile, the invention further discloses a preparation method of the radiation-resistant high-entropy carbide ceramic, Mo powder is added on the basis of the quaternary high-entropy carbide, and the quinary high-entropy carbide ceramic is obtained through sintering.
本发明涉及碳化物陶瓷的制备方法，具体涉及耐辐照高熵碳化物陶瓷的制备方法，用于解决现有高熵碳化物陶瓷存在元素偏析、致密低，以及耐辐照性能较弱的不足之处。该耐辐照高熵碳化物陶瓷的制备方法采用等摩尔比的TiC、TaC、ZrC、VC粉末进行球磨混合，再进行SPS烧结，得到(Ta0.25Ti0.25Zr0.25V0.25)C块体；该(Ta0.25Ti0.25Zr0.25V0.25)C块体具有热力学上的高熵效应，结构上的晶格畸变效应，动力学上的迟滞扩散效应，性能上的鸡尾酒效应，使得其具有高硬度、高强度和抗氧化性等优异性能。同时，本发明还公开一种耐辐照高熵碳化物陶瓷的制备方法，在四元高熵碳化物基础上加入Mo粉末，烧结得到五元高熵碳化物陶瓷。
Preparation method of radiation-resistant high-entropy carbide ceramic
The invention relates to a preparation method of carbide ceramics, in particular to a preparation method of irradiation-resistant high-entropy carbide ceramics, which is used for overcoming the defects of element segregation, low compactness and weaker irradiation resistance of the existing high-entropy carbide ceramics. The preparation method of the radiation-resistant high-entropy carbide ceramic comprises the following steps: carrying out ball-milling mixing on TiC powder, TaC powder, ZrC powder and VC powder in an equal molar ratio, and then carrying out SPS sintering to obtain a (Ta0. 25Ti0. 25Zr0. 25V0. 25) C block; the (Ta0. 25Ti0. 25Zr0. 25V0. 25) C block has a high entropy effect in thermodynamics, a lattice distortion effect in structure, a hysteresis diffusion effect in dynamics and a cocktail effect in performance, so that the (Ta0. 25Ti0. 25Zr0. 25V0. 25) C block has excellent performances such as high hardness, high strength and oxidation resistance. Meanwhile, the invention further discloses a preparation method of the radiation-resistant high-entropy carbide ceramic, Mo powder is added on the basis of the quaternary high-entropy carbide, and the quinary high-entropy carbide ceramic is obtained through sintering.
本发明涉及碳化物陶瓷的制备方法，具体涉及耐辐照高熵碳化物陶瓷的制备方法，用于解决现有高熵碳化物陶瓷存在元素偏析、致密低，以及耐辐照性能较弱的不足之处。该耐辐照高熵碳化物陶瓷的制备方法采用等摩尔比的TiC、TaC、ZrC、VC粉末进行球磨混合，再进行SPS烧结，得到(Ta0.25Ti0.25Zr0.25V0.25)C块体；该(Ta0.25Ti0.25Zr0.25V0.25)C块体具有热力学上的高熵效应，结构上的晶格畸变效应，动力学上的迟滞扩散效应，性能上的鸡尾酒效应，使得其具有高硬度、高强度和抗氧化性等优异性能。同时，本发明还公开一种耐辐照高熵碳化物陶瓷的制备方法，在四元高熵碳化物基础上加入Mo粉末，烧结得到五元高熵碳化物陶瓷。
Preparation method of radiation-resistant high-entropy carbide ceramic
耐辐照高熵碳化物陶瓷的制备方法
LI XIAOQIANG (Autor:in) / WEI CHONG (Autor:in) / ZHENG CE (Autor:in) / PENG BIAO (Autor:in)
08.11.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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