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Medium-entropy or high-entropy carbide nano-powder and preparation method thereof
The invention provides medium-entropy or high-entropy carbide nano powder and a preparation method thereof.The preparation method comprises the following steps that 1, a Ta source, an Nb source, a Ti source, a Zr source and an Hf source are added into ethyl alcohol, and a mixed solution A is prepared; or adding an Hf source, a Zr source and a Ti source into ethanol to prepare a mixed solution B; 2) adding phenolic resin and furfuryl alcohol into the mixed solution A or the mixed solution B, and uniformly mixing to obtain a mixed solution C; (3) stirring the mixed solution C under a heating condition, carrying out polycondensation reaction, obtaining a cured product G after the reaction is completed, and drying the cured product; and (4) carrying out high-temperature carbonization on the dried cured product G, so as to obtain (Ta0. 2Nb0. 2Ti0. 2Zr0. 2Hf0. 2) C high-entropy powder or (HfZrTi) C medium-entropy powder. The preparation method has the advantages of simple process flow, no need of other process assistance, short preparation period and low process cost, and is suitable for large-scale industrial production.
本发明提供一种中熵或高熵碳化物纳米粉体及其制备方法，包括以下步骤：1)将Ta源、Nb源、Ti源、Zr源和Hf源加入乙醇中，配制得到混合液A；或者，将Hf源、Zr源和Ti源加入乙醇中，配制得到混合液B；2)向混合液A或者混合液B中加入酚醛树脂与糠醇，混合均匀，得到混合液C；3)将混合液C在加热条件下搅拌，进行缩聚反应，反应完成后得到固化产物G，对固化产物进行干燥；4)将干燥后的固化产物G进行高温碳化，得到(Ta0.2Nb0.2Ti0.2Zr0.2Hf0.2)C高熵粉体或(HfZrTi)C中熵粉体。该制备方法工艺流程简单，无需其他工艺辅助，制备周期短，工艺成本低，适合于大规模工业化生产。
Medium-entropy or high-entropy carbide nano-powder and preparation method thereof
The invention provides medium-entropy or high-entropy carbide nano powder and a preparation method thereof.The preparation method comprises the following steps that 1, a Ta source, an Nb source, a Ti source, a Zr source and an Hf source are added into ethyl alcohol, and a mixed solution A is prepared; or adding an Hf source, a Zr source and a Ti source into ethanol to prepare a mixed solution B; 2) adding phenolic resin and furfuryl alcohol into the mixed solution A or the mixed solution B, and uniformly mixing to obtain a mixed solution C; (3) stirring the mixed solution C under a heating condition, carrying out polycondensation reaction, obtaining a cured product G after the reaction is completed, and drying the cured product; and (4) carrying out high-temperature carbonization on the dried cured product G, so as to obtain (Ta0. 2Nb0. 2Ti0. 2Zr0. 2Hf0. 2) C high-entropy powder or (HfZrTi) C medium-entropy powder. The preparation method has the advantages of simple process flow, no need of other process assistance, short preparation period and low process cost, and is suitable for large-scale industrial production.
本发明提供一种中熵或高熵碳化物纳米粉体及其制备方法，包括以下步骤：1)将Ta源、Nb源、Ti源、Zr源和Hf源加入乙醇中，配制得到混合液A；或者，将Hf源、Zr源和Ti源加入乙醇中，配制得到混合液B；2)向混合液A或者混合液B中加入酚醛树脂与糠醇，混合均匀，得到混合液C；3)将混合液C在加热条件下搅拌，进行缩聚反应，反应完成后得到固化产物G，对固化产物进行干燥；4)将干燥后的固化产物G进行高温碳化，得到(Ta0.2Nb0.2Ti0.2Zr0.2Hf0.2)C高熵粉体或(HfZrTi)C中熵粉体。该制备方法工艺流程简单，无需其他工艺辅助，制备周期短，工艺成本低，适合于大规模工业化生产。
Medium-entropy or high-entropy carbide nano-powder and preparation method thereof
一种中熵或高熵碳化物纳米粉体及其制备方法
OUYANG HAIBO (author) / CHEN ZIHAO (author) / LI CUIYAN (author) / GAO RUINAN (author) / SHEN TIANZHAN (author) / WANG JINTAO (author) / QI SIYI (author) / YANG QIAN (author)
2023-10-27
Patent
Electronic Resource
Chinese
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