کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5367524 1388368 2009 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Plasma plume photography and spectroscopy of Fe-Oxide materials
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
Plasma plume photography and spectroscopy of Fe-Oxide materials
چکیده انگلیسی

Time-resolved photography was employed to study plasma dynamics and particle ejection of laser-irradiated iron oxide materials. Nano-particle powder, pressed powder pellets and sintered ceramics were ablated in air and Ar gas background by means of short laser pulses (Nd:YAG laser wavelength λ = 1064 nm and pulse duration τL ≈ 6 ns; KrF laser λ = 248 nm and τL ≈ 20 ns). Plasma plume dynamics significantly depended on sample morphology. The ejection of non-luminous particles up to several hundreds of microseconds after the laser pulse was observed for powder and pressed powder target materials. Laser-induced breakdown spectroscopy (LIBS) was employed for element analysis of iron oxide powders, pressed pellets and sintered ceramics. LIBS spectra of the different targets were comparable to each other and qualitatively independent of target morphology.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 255, Issue 10, 1 March 2009, Pages 5215-5219
نویسندگان
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