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High-oxidation-resistance high-entropy metal diboride composite phase material as well as preparation method and application thereof
The invention relates to a high-oxidation-resistance high-entropy metal diboride composite phase material, and belongs to the technical field of ultrahigh-temperature ceramic materials. The chemical formula of the high-oxidation-resistance high-entropy metal diboride composite phase material is (Hf < 0.2 > Zr < 0.2 > Ta < 0.2 > Nb < 0.2 > Tm < 0.2 >) B2/Tm < 4 >. The phase structure of the (Hf < 0.2 > Zr < 0.2 > Ta < 0.2 > Nb < 0.2 > Tm < 0.2 >) B2/TmB4 powder and the phase structure of the (Hf < 0.2 > Zr < 0.2 > Ta < 0.2 > Nb < 0.2 > Tm < 0.2 >) B2/TmB4 block body prepared by the invention contain two phase structures of (Hf < 0.2 > Zr < 0.2 > Ta < 0.2 > Nb < 0.2 > Tm < 0.2 >) B2 The obtained material is subjected to a static oxidation test, Tm and oxides generated by other metal elements form a continuous oxide layer, gaps are sealed and filled, a high-density oxide layer is obtained, oxygen can be effectively prevented from entering, and the oxidation rate is reduced. Therefore, the high-entropy metal diboride composite phase material prepared by the preparation method disclosed by the invention has excellent oxidation resistance.
本发明涉及一种高抗氧化性高熵金属二硼化物复合相材料，属于超高温陶瓷材料技术领域。所述高抗氧化性高熵金属二硼化物复合相材料化学式为(Hf0.2Zr0.2Ta0.2Nb0.2Tm0.2)B2/TmB4。本发明制备的(Hf0.2Zr0.2Ta0.2Nb0.2Tm0.2)B2/TmB4粉体和块体的相结构中含有(Hf0.2Zr0.2Ta0.2Nb0.2Tm0.2)B2和TmB4两种相结构。将所得材料进行静态氧化测试，Tm与其他金属元素生成的氧化物形成连续的氧化层，封填了空隙，得到高致密度的氧化层，可以有效阻止氧气进入，降低了氧化的速率。因此，本发明制备的高熵金属二硼化物复合相材料具有优异的抗氧化性能。
High-oxidation-resistance high-entropy metal diboride composite phase material as well as preparation method and application thereof
The invention relates to a high-oxidation-resistance high-entropy metal diboride composite phase material, and belongs to the technical field of ultrahigh-temperature ceramic materials. The chemical formula of the high-oxidation-resistance high-entropy metal diboride composite phase material is (Hf < 0.2 > Zr < 0.2 > Ta < 0.2 > Nb < 0.2 > Tm < 0.2 >) B2/Tm < 4 >. The phase structure of the (Hf < 0.2 > Zr < 0.2 > Ta < 0.2 > Nb < 0.2 > Tm < 0.2 >) B2/TmB4 powder and the phase structure of the (Hf < 0.2 > Zr < 0.2 > Ta < 0.2 > Nb < 0.2 > Tm < 0.2 >) B2/TmB4 block body prepared by the invention contain two phase structures of (Hf < 0.2 > Zr < 0.2 > Ta < 0.2 > Nb < 0.2 > Tm < 0.2 >) B2 The obtained material is subjected to a static oxidation test, Tm and oxides generated by other metal elements form a continuous oxide layer, gaps are sealed and filled, a high-density oxide layer is obtained, oxygen can be effectively prevented from entering, and the oxidation rate is reduced. Therefore, the high-entropy metal diboride composite phase material prepared by the preparation method disclosed by the invention has excellent oxidation resistance.
本发明涉及一种高抗氧化性高熵金属二硼化物复合相材料，属于超高温陶瓷材料技术领域。所述高抗氧化性高熵金属二硼化物复合相材料化学式为(Hf0.2Zr0.2Ta0.2Nb0.2Tm0.2)B2/TmB4。本发明制备的(Hf0.2Zr0.2Ta0.2Nb0.2Tm0.2)B2/TmB4粉体和块体的相结构中含有(Hf0.2Zr0.2Ta0.2Nb0.2Tm0.2)B2和TmB4两种相结构。将所得材料进行静态氧化测试，Tm与其他金属元素生成的氧化物形成连续的氧化层，封填了空隙，得到高致密度的氧化层，可以有效阻止氧气进入，降低了氧化的速率。因此，本发明制备的高熵金属二硼化物复合相材料具有优异的抗氧化性能。
High-oxidation-resistance high-entropy metal diboride composite phase material as well as preparation method and application thereof
一种高抗氧化性高熵金属二硼化物复合相材料及其制备方法和应用
LIU YANBO (author) / ZHU SHIZHEN (author) / LIU LING (author) / MA ZHUANG (author) / ZHANG ZE (author)
2024-02-23
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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