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Europium hafnate material, preparation method and application
The embodiment of the invention provides a europium hafnate material, a preparation method and application, and the preparation method comprises the following steps: uniformly mixing a solution containing europium ions and a solution containing hafnium ions to obtain a mixed solution containing europium and hafnium ions; carrying out coprecipitation reaction on the mixed solution containing europium and hafnium ions to obtain a europium hydroxide and hafnium hydroxide coprecipitation precursor; calcining the dried europium hydroxide and hafnium hydroxide coprecipitation precursor in a muffle furnace to obtain mixed powder of europium oxide and hafnium oxide; and carrying out ball milling on the mixed powder of europium oxide and hafnium oxide, and sieving after ball milling to obtain ball-milled fine powder, namely the europium hafnate material. According to the europium hafnate material disclosed by the embodiment of the invention, europium oxide and hafnium oxychloride are dissolved into dilute solutions and then mixed and precipitated, so that the uniformity of chemical components of the material can be remarkably improved, and the service stability of the material under working conditions is favorably improved; the problem that in the prior art, the material uniformity of the europium hafnate material is difficult to guarantee in the sintering preparation process is solved.
本发明实施例提供一种铪酸铕材料、制备方法及用途，包括：将含铕离子的溶液与含铪离子的溶液混匀，得到含铕和铪离子的混液；将含铕和铪离子的混液进行共沉淀反应，得到氢氧化铕和氢氧化铪共沉淀前驱体；将干燥的氢氧化铕和氢氧化铪共沉淀前驱体于马弗炉中煅烧，得到氧化铕和氧化铪的混合粉体；将氧化铕和氧化铪的混合粉体进行球磨，球磨后过筛得到球磨细粉，即得铪酸铕材料。本发明实施例的铪酸铕材料氧化铕、氧氯化铪溶解为稀溶液后再进行混合沉淀可以显著改善材料化学成分的均匀性，有助于提高材料在工况条件下服役的稳定性，从而，避免了现有技术中铪酸铕材料在烧结制备过程中材料均匀性难以保证的问题。
Europium hafnate material, preparation method and application
The embodiment of the invention provides a europium hafnate material, a preparation method and application, and the preparation method comprises the following steps: uniformly mixing a solution containing europium ions and a solution containing hafnium ions to obtain a mixed solution containing europium and hafnium ions; carrying out coprecipitation reaction on the mixed solution containing europium and hafnium ions to obtain a europium hydroxide and hafnium hydroxide coprecipitation precursor; calcining the dried europium hydroxide and hafnium hydroxide coprecipitation precursor in a muffle furnace to obtain mixed powder of europium oxide and hafnium oxide; and carrying out ball milling on the mixed powder of europium oxide and hafnium oxide, and sieving after ball milling to obtain ball-milled fine powder, namely the europium hafnate material. According to the europium hafnate material disclosed by the embodiment of the invention, europium oxide and hafnium oxychloride are dissolved into dilute solutions and then mixed and precipitated, so that the uniformity of chemical components of the material can be remarkably improved, and the service stability of the material under working conditions is favorably improved; the problem that in the prior art, the material uniformity of the europium hafnate material is difficult to guarantee in the sintering preparation process is solved.
本发明实施例提供一种铪酸铕材料、制备方法及用途，包括：将含铕离子的溶液与含铪离子的溶液混匀，得到含铕和铪离子的混液；将含铕和铪离子的混液进行共沉淀反应，得到氢氧化铕和氢氧化铪共沉淀前驱体；将干燥的氢氧化铕和氢氧化铪共沉淀前驱体于马弗炉中煅烧，得到氧化铕和氧化铪的混合粉体；将氧化铕和氧化铪的混合粉体进行球磨，球磨后过筛得到球磨细粉，即得铪酸铕材料。本发明实施例的铪酸铕材料氧化铕、氧氯化铪溶解为稀溶液后再进行混合沉淀可以显著改善材料化学成分的均匀性，有助于提高材料在工况条件下服役的稳定性，从而，避免了现有技术中铪酸铕材料在烧结制备过程中材料均匀性难以保证的问题。
Europium hafnate material, preparation method and application
一种铪酸铕材料、制备方法及用途
ZHOU YI (author) / YAN GUOQING (author) / GAO SHIXIN (author) / HE DAMING (author) / YUE HUIFANG (author) / GU YIYU (author) / ZHANG JIANDONG (author) / CHEN CONG (author) / QIN MIAN (author) / MA CHAOHUI (author)
2022-12-09
Patent
Electronic Resource
Chinese
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