Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
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High-entropy ultrahigh-temperature ceramic-based composite material and preparation method thereof
The invention belongs to the field of high-entropy ultrahigh-temperature ceramics, and particularly relates to a high-entropy ultrahigh-temperature ceramic-based composite material and a preparation method thereof. The composite material is obtained by the following method: firstly, synthesizing (V0. 2Nb0. 2Cr0. 2Mo0. 2W0. 2) Si2 powder by taking a transition metal simple substance and silicon powder as raw materials; then uniformly mixing three kinds of powder of (V0. 2Nb0. 2Cr0. 2Mo0. 2W0. 2) Si2, B4C and C according to the molar ratio of 2: 1: 3, and carrying out in-situ reaction sintering; and finally, the compact (V < 0.2 > Nb < 0.2 > Cr < 0.2 > Mo < 0.2 > W < 0.2 >) B2-SiC composite material is obtained at a relatively low temperature.
本申请属于高熵超高温陶瓷领域，具体为一种高熵超高温陶瓷基复合材料及其制备方法。该复合材料由以下方法获得：首先以过渡金属单质和硅粉为原料合成(V0.2Nb0.2Cr0.2Mo0.2W0.2)Si2粉体；然后将(V0.2Nb0.2Cr0.2Mo0.2W0.2)Si2、B4C和C三种粉体按摩尔比2:1:3混合均匀并进行原位反应烧结；最后在较低温度下获得了致密的(V0.2Nb0.2Cr0.2Mo0.2W0.2)B2‑SiC复合材料。
High-entropy ultrahigh-temperature ceramic-based composite material and preparation method thereof
The invention belongs to the field of high-entropy ultrahigh-temperature ceramics, and particularly relates to a high-entropy ultrahigh-temperature ceramic-based composite material and a preparation method thereof. The composite material is obtained by the following method: firstly, synthesizing (V0. 2Nb0. 2Cr0. 2Mo0. 2W0. 2) Si2 powder by taking a transition metal simple substance and silicon powder as raw materials; then uniformly mixing three kinds of powder of (V0. 2Nb0. 2Cr0. 2Mo0. 2W0. 2) Si2, B4C and C according to the molar ratio of 2: 1: 3, and carrying out in-situ reaction sintering; and finally, the compact (V < 0.2 > Nb < 0.2 > Cr < 0.2 > Mo < 0.2 > W < 0.2 >) B2-SiC composite material is obtained at a relatively low temperature.
本申请属于高熵超高温陶瓷领域，具体为一种高熵超高温陶瓷基复合材料及其制备方法。该复合材料由以下方法获得：首先以过渡金属单质和硅粉为原料合成(V0.2Nb0.2Cr0.2Mo0.2W0.2)Si2粉体；然后将(V0.2Nb0.2Cr0.2Mo0.2W0.2)Si2、B4C和C三种粉体按摩尔比2:1:3混合均匀并进行原位反应烧结；最后在较低温度下获得了致密的(V0.2Nb0.2Cr0.2Mo0.2W0.2)B2‑SiC复合材料。
High-entropy ultrahigh-temperature ceramic-based composite material and preparation method thereof
一种高熵超高温陶瓷基复合材料及其制备方法
WANG HAILONG (Autor:in) / HUANG FEILONG (Autor:in) / FANG CHENG (Autor:in) / LI MINGLIANG (Autor:in) / XIE WEI (Autor:in) / ZHU JINPENG (Autor:in) / SHAO GANG (Autor:in) / WANG HAILIANG (Autor:in) / LIU WEN (Autor:in) / CAI BEI (Autor:in)
12.12.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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