Study of the defect formation mechanism of helium in titanium by positron annihilation lifetime

摘要：

In this paper, positron lifetime annihilation (PAL) techniques will be carried out to investigate the defect formation mechanism of helium in titanium. First, positron annihilation lifetime (PAL) spectroscopy will be used to study the behaviour of helium agglomeration, helium bubble formation in titanium under various conditions of helium-implantation. Moreover, their evolutive behavoiour in different processes of annealing will also be studied. Meanwhile, in order to find out the factors of affecting the growth and size of helium clusters, kinetic Monte Carlo simulation will be further carried out to study the growth of helium cluster, based on the simulation of helium behaviour in titanium crystals using molecular dynamics1,2.

作者: Y.J.Zhang A.H.Deng Y.L.Zhou X.X.Yu J.Yu J.J.Long X.Cheng

作者单位: Department of Applied Physics,Sichuan University,Chengdu 610065,P.R.China

会议类型: 国际会议

会议名称: 第九届国际正电子与正电子素国际会议(9th International Workshop on Positron and Positronium Chemistry)(PPC–9)

会议地点: 武汉

会议语种:英文

页码: 84

在线出版日期: 2008-05-11（万方平台首次上网日期，不代表论文的发表时间）