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) spectra, decay curves, thermoluminescence(TL) glow curves as well as the photostimulated luminescence(PSL) spectra. Sr2Al2 Si O7:Eu2+,Tm3+ phosphors exhibited strong green phosphorescence and photostimulated luminescence originating from 4f65d1–4f7 transition of Eu2+ after ultraviolet light stimulation. Deep traps were found by analyses on the phosphorescence decays and thermoluminescence spectra......
crystal structures,photoluminescence,thermoluminescence properties and afterglow properties of the phosphors were characterized systematically using X-ray diffraction(XRD),luminescence spectrophotometer,microcomputer thermoluminescence dosimeter and single photon counter,respectively.Under 280 nm excitation,the broadband emissions of Eu2+ions were observed at 445 nm(blue)due to the 4f7→4f65d......
) spectra, decay curves, thermoluminescence(TL) glow curves as well as the photostimulated luminescence(PSL) spectra. Sr2Al2 Si O7:Eu2+,Tm3+ phosphors exhibited strong green phosphorescence and photostimulated luminescence originating from 4f65d1–4f7 transition of Eu2+ after ultraviolet light stimulation. Deep traps were found by analyses on the phosphorescence decays and thermoluminescence spectra......
分形维数与含MnS超高强度钢断裂韧性的关系研究 李静媛1,李亚琴1,叶瑞英1 (1.四川大学,成都,610065) 摘要:应用分形理论研究含MnS的超高强度钢D6AC的分形及其分形维数的测量方法,得出试样的韧性与分形维数DH成正比关系,即韧性随分形维数的增大而增加.揭示了断口分形维数与材料性能之间的内在联系,为分形理论在材料领的应用提供了有益的帮助. 关键词:分形维数; 分形理论; 金属断裂; 断裂韧性; [全文内容正在添加中] ......
筛分机械与筛分机理研究的现状及发展彭会清,曹钊,曹永丹摘 要:筛分是工业生产中不可缺少的工艺,所以对筛分机械与筛分机理的研究变得尤其重要.本文主要介绍了筛分机械的应用现状,筛分方法和筛分机理研究的发展以及筛分机械取得的进展,并结合这些分析,总结了筛分机械的发展方向.关键词:筛分机械;筛分方法;机理;发展方向;......
improved photocatalytic properties compared with the undoped ZnO nanoparticles. Furthermore, the effect of UV light irradiation was studied with thermoluminescence (TL) and photoluminescence (PL......
of a UV lamp (λmax=366 nm) for 60 seconds after the LLP disappeared.The re-emitted LLP is called PSLLP.The glass sample was characterized by the fluorescence and thermoluminescence spectra......
improved photocatalytic properties compared with the undoped ZnO nanoparticles. Furthermore, the effect of UV light irradiation was studied with thermoluminescence (TL) and photoluminescence (PL......
and Engineering, The M.S. University of Baroda摘 要:In this paper, thermoluminescence(TL)properties of rare earth Tb3+-doped α-Sr2 P2 O7 were examined after β... remains unaffected with the increase in Tb3+concentration as well as fading effect. The activation energy and kinetic parameters of the samples were evaluated using thermoluminescence peak shape method......
="ChDivSummary" name="ChDivSummary">The thermoluminescence (TL) and photoluminescence (PL) properties of the phosphor NaSrBO 3 :Tb 3+ were reported and discussed. The combustion technique was used... that of (LiF:Mg,Cu,P). The TL glow curve was studied as a function of concentration of dopant and dose of gamma ray irradiation. The kinetic parameters of the thermoluminescence of NaSrBO 3 : Tb 3+ were......