综述了核反应堆中锆合金防护型包壳的研究进展.石墨或硅氧烷涂层包壳以及内衬锆或铜阻挡型包壳的广泛采用有效地阻止了PCI的产生,硅氧烷涂层的防护效果较石墨大,但制作这种包壳的成本较高;铜阻挡层防护作用较锆阻挡层低,已很少被采用.在这几种防护方法中,无论采用哪种方法都有效地阻止了PCI的发生,但有关防护机制和涂层及阻挡层锆合金包壳制作方法的研究还很少.为此,从涂层对裂变产物碘的影响和涂层及内衬金属与锆管内表面的结合等方面提出了今后的研究方向.
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