快凝Al-Fe-V-Si-Mm合金中稀土作用的正电子湮没研究

POSITRON ANNIHILATION STUDY ON THE EFFECT OF MISCH METAL IN Al-Fe-V-Si-Mm ALLOYS

测量了几种不同混合稀土（Mm：MischMetal）含量的快凝Al－Fe－V－Si－Mm合金薄带的正电子寿命谱，并分析了这些快凝合金薄带中稀土含量对正电子寿命的影响．

The positron lifetime spectra of several Al-Fe-V-Si-Mm alloys with different content of Misch metal was measured, and the effect of the amount of Misch metal on the positron lifetime in Al-Fe-V-Si-Mm alloys was discussed.