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锆钒铁合金是一种激活温度较低的非蒸散型吸气剂,具有平衡气压低、吸气容量大和吸气速率高等特性,对H2等活性气体有很好的吸附性能。对锆钒铁吸气剂的研究通常是在常温条件下,而对其在低温下的吸气性能则少有探索。本文通过测试锆钒铁吸气剂在不同工作温度下的吸氢性能,获得了相应的吸附等温线,发现在低压条件下低温吸气量大于常温,压力较高时在所选取时间(10 min)内低温吸气量小于常温,但其最终吸气量仍会大于常温。对这一现象进行分析,认为表面吸附和内部扩散所占地位的不同是造成吸气性能差异的原因。实验拓展了锆钒铁的应用范围,为具有低温除氢需求的场合提供了新选择。
Zirconium vanadium iron alloy is a low activation temperature of non-evaporable getter with a balance of low pressure, suction capacity and high suction rate characteristics of the active gas such as H2 has good adsorption properties. Research on zirconia vanadium iron getter is usually at room temperature, while its inspiratory performance at low temperatures is rarely explored. In this paper, the corresponding adsorption isotherm was obtained by measuring the hydrogen absorption capacity of zirconia-vanadium-iron getter at different operating temperatures. It was found that the low-temperature inspiratory capacity was higher than normal temperature under low pressure and the pressure was higher at the selected time ) Within the low-temperature inspiratory capacity is less than room temperature, but its ultimate intake will still be greater than normal temperature. Analysis of this phenomenon, that the surface adsorption and internal diffusion of the status of the difference is caused by the difference in inspiratory performance reasons. Experiments to expand the scope of application of zirconium vanadium iron, hydrogen demand for the occasion with a low temperature provides a new choice.