1.33和H0.62Zr0.38。由此可見,過渡區(qū)中的氫化物對改善鋯的吸氫性能起著重要作用。通過對動力學機制進行研究,確定在室溫下,鍍鈀且退火處理后的鋯合金吸氫過程符合一維擴散機制;而在250 ℃時,符合二維擴散機制。;Zirconium is an excellent hydrogen absorption material and has been regarded as a candidate material in the deuterium storage field. However, due to its higher hydrogen absorption temperature and slower hydrogen absorption kinetics, it cannot be applied at present. Palladium electroplating was used as a surface modification to improve the property. The results show that after the palladium electroplating and annealing, the zirconium alloy can absorb hydrogen at room temperature with an appropriate incubation period. With the increase in temperature, the hydrogen absorption rate becomes faster with a shorter incubation period. A transition zone forms between the palladium layer and zirconium substrate, and PdH1.33 and H0.62Zr0.38 are found in the transition zone after hydrogenation. These hydride phases in the transition zone play an important role in improving the hydrogen absorption property of zirconium. For the kinetics mechanism, it is determined to be 1-D diffusion at room temperature and 2-D diffusion at 250 °C."/>
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