余庚华
,
仲嘉琪
,
王谨
,
詹明生
量子电子学报
doi:10.3969/j.issn.1007-5461.2012.03.001
Ba原子是光频标的候选者之一,对其进行有效的激光冷却与囚禁需要相关能级的寿命和跃迁几率的信息.Ba原子激发态6s6p3P1能级在激光冷却实验中很重要,通过Hanle效应实验测量了这一能级的寿命和自发辐射率,从理论和实验上研究了探测激光有限...
关键词:
光谱学
,
能级寿命
,
Hanle效应
,
线宽
,
Ba原子
,
原子频标
材料科学技术(英文)
The doping of phosphorus, sulfur and boron in IN718 superalloy can remarkably influence the creep behavior. The modifications of the minor elements seem not to vary the stress exponent and the influences primarily concentrate on the effective diffusion coefficient. A pronounced beneficial interactio...
关键词:
Z.Q. Hu
,
W.R.Sun and S.R. Guo(Institute of Metal Research
,
Chinese Academy of Sciences
,
Shenyang 110015
,
China Manuscript received 26 August 1996)
金属学报(英文版)
The effects of the trace elements, P, S and Si,on the solidification, segregation,microstructure and mechanical properties of GH761 and In718 alloys were studied.It was found that the segregation of the P,
关键词:
: superalloy
,
null
,
null
,
null
王建生
,
韩其勇
,
魏寿昆
,
宋波
金属学报
应用Ba蒸气平衡法,在密封Mo反应室内,用自制的TiN和BaS坩埚,进行了纯Fe液中Ba—O,Ba—S,Ba—P平衡的研究。得到反应:BaO_(
关键词:
Ba
,
O
,
S
,
P
,
liquid iron
,
thermodynamic parameters