UO2-(Zr0.8Ca0.2)O1.8面心立方固溶体微球制备工艺研究
doi: 10.13832/j.jnpe.2021.02.0168
Research of UO2-(Zr0.8Ca0.2)O1.8 FCC Solid Solution Spheres Preparation
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摘要: 为研制出耐辐照的新型单相陶瓷燃料，采用溶胶-凝胶法，通过复合溶胶配制、分散胶凝、洗涤、干燥煅烧与烧结过程，开展了UO2-(Zr0.8Ca0.2)O1.8燃料微球制备工艺研究，制备出铀摩尔分数含量分别为30mol%、50mol%、70mol%的UO2-(Zr0.8Ca0.2)O1.8燃料微球样品。在对工艺过程进行分析的基础上，通过实验确定了工艺参数。采用X射线衍射（XRD）对3种燃料微球样品进行分析，分析结果表明：铀摩尔分数含量分别为30mol%、50mol%、70mol%的UO2-(Zr0.8Ca0.2)O1.8燃料微球样品均为面心立方（FCC）固溶体结构。
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关键词:
- 溶胶-凝胶法 /
- 面心立方（FCC）固溶体 /
- 铀锆钙
Abstract: In order to develop the single - phase ceramic fuel with good radiation resistance, the UO2-(Zr0.8Ca0.2)O1.8 microspheres with different uranium contents (30mol%, 50mol%, 70mol%) were prepared by Inner-Sol-Gel technique. The technique is with five processes including sol preparation, casting and gelation, washing, drying, and sintering. The parameters of this technique were fixed on the basis of analysis and experiment. The UO2-(Zr0.8Ca0.2)O1.8 spheres were analyzed by XRD. The results show that UO2-(Zr0.8Ca0.2)O1.8 microspheres with different uranium contents (30mol%, 50mol%, 70mol%) were FCC solid solution.-
Key words:
- Sol-Gel /
- FCC solid solution /
- U-Zr-Ca
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