Research on Reproduction Method of CRUD Depositions Based on Anodic Oxidation
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摘要: 为建立氧化腐蚀产物沉积层（CRUD）内硼的时空分布模型，以及为CRUD内硼迁移及流动传热实验提供支持，基于阳极氧化方法开展CRUD涂层复现研究。根据真实压水堆CRUD形貌数据，通过调整电化学体系的氟化铵浓度、含水量、氧化电压和氧化时间，实现对涂层孔径的有效控制。表征分析表明，制备的CRUD样品可以充分覆盖真实沉积层的形貌参数范围。本研究建立的涂层复现方法能够用于CRUD样品的制备。
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关键词:
- 氧化腐蚀产物沉积层(CRUD) /
- 阳极氧化 /
- 涂层复现 /
- 表面制备
Abstract: In order to establish the time and spatial distribution model of boron and provide support for the experiment of boron transport and heat transfer within the Chalk River Unidentified Deposit (CRUD) depositions, the reproduction method of CRUD depositions was studied based on anodic oxidation method. With reference to the morphology data of the real CRUD depositions in the PWRs, the effective control of the pore size can be realized by adjusting the ammonium fluoride concentration, water concentration, oxidation voltage and oxidation time of the electrochemical system. Characterization analysis shows that the reproduced CRUD deposition samples can fully cover the range of morphological parameters of the real CRUD depositions. Therefore, the reproduction method established in this study can be used for the reproduction of CRUD deposition samples. -
图 2 不同含量 NH4F电解液中阳极氧化制备的CRUD样品的表面形貌
Figure 2. Morphology of CRUD Samples Prepared by Anodic Oxidation in Electrolytes with Different Content of NH4F
图 3 不同阳极氧化电压下制备的CRUD样品的表面形貌
Figure 3. Morphology of CRUD Samples Prepared at Different Anodic Oxidation Voltages
图 4 不同阳极氧化时长制备的CRUD样品表面形貌
Figure 4. Morphology of CRUD Samples Prepared with Different Anodic Oxidation Time
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