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氧化铝弥散强化铜合金是国际热核实验堆(ITER)的备选热沉材料之一,氘在其中的渗透滞留行为关系到ITER运行的安全性。通过气体驱动渗透平台测定了实验温度621~803 K时氘气在氧化铝弥散强化铜合金中的渗透参数;通过热脱附谱实验平台记录了2种氧化铝弥散强化铜合金以及CuCrZr的热脱附曲线。结果表明:在相同温度区间内,氘气在氧化铝弥散强化铜合金中的渗透系数与纯铜及CuCrZr接近,说明氧化铝弥散相对氘气在氧化铝弥散强化铜合金中的渗透系数基本没有影响,而扩散系数比在纯铜和CuCrZr中都低,且在低温时显著降低;2种氧化铝弥散强化铜合金均有3个脱附峰,而CuCrZr合金只有1个脱附峰。
Alumina dispersion strengthened copper alloy is one of the alternative heat sink materials for ITER. The penetration and detention of deuterium in it is related to the safety of ITER operation. The permeation parameters of deuterium gas in alumina dispersion strengthened copper alloy at 621 ~ 803 K were measured by gas-driven infiltration platform. The thermal dispersion spectra of two kinds of alumina dispersion strengthened copper alloy and CuCrZr were recorded by thermal desorption spectroscopy With the curve. The results show that the permeability coefficient of deuterium in alumina dispersion strengthened copper alloy is close to that of pure copper and CuCrZr in the same temperature range, indicating that the permeability coefficient of alumina dispersion relative to deuterium gas in alumina dispersion strengthened copper alloy has almost no effect , While the diffusion coefficient is lower than that in pure copper and CuCrZr, and decreases significantly at low temperature. There are 3 desorption peaks in both of the two kinds of alumina dispersion strengthened Cu alloys, while there is only 1 desorption peak in CuCrZr alloy.