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首页> 外文期刊>Physica, B. Condensed Matter >In-situ neutron radiography investigations of the reaction of Zircaloy-4 in steam, nitrogen/steam and air/steam atmospheres
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In-situ neutron radiography investigations of the reaction of Zircaloy-4 in steam, nitrogen/steam and air/steam atmospheres

机译:原位中子放射线照相调查Zircaloy-4在蒸汽,氮气/蒸汽和空气/蒸汽环境中的反应研究

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摘要

In the framework of nuclear safety research the high temperature reaction behavior of the classical pressurized water reactor cladding material Zircaloy-4 in nitrogen containing wet atmospheres was investigated by means of in-situ neutron radiography. The paper describes experimental details and gives an overview of the results. The dependence of the reaction rate on the sum of oxygen + steam flux is discussed and compared with a model developed at KIT. The results confirm the, at first glance surprising, prediction of the model that the time of the transition from parabolic to linear kinetics increases and the post-transition reaction decreases with increasing flow rate of oxygen + steam.
机译:在核安全性研究框架中,通过原位中子放射照相照相造影研究了含氮湿气氛中的经典加压水反应器包层覆盖物填充材料的高温反应行为。 本文描述了实验细节,并概述了结果。 讨论了反应速率对氧气+蒸汽通量总和的依赖性,并与试剂盒开发的模型进行了比较。 结果证实,首先令人惊讶地证明了模型的预测,使得从抛物线转变为线性动力学的时间增加,并且后转变后反应随着氧气+蒸汽的流速的增加而降低。

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