کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1672237 1008930 2009 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Ultra-short pulse laser ablation of Al70Cu20Fe10 alloy: Nanoparticles generation and thin films deposition
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
Ultra-short pulse laser ablation of Al70Cu20Fe10 alloy: Nanoparticles generation and thin films deposition
چکیده انگلیسی

In this paper the deposition of thin films obtained from femtosecond laser ablation of an Al70Cu20Fe10 alloy is presented. In the plasma produced by ablation, a characteristic feature is the presence of hot nanoparticles that become evident several microseconds after the laser shot. The cooling mechanisms of these particles have been analysed together with the evolution of their composition. The results, compared with those previously obtained for Al65Cu23Fe12 quasicrystal, reveal a clear relation between the final composition of the particles and the high-temperature equilibrium vapor pressures of the different elements, suggesting a direct emission from the target rather than a gas phase formation. Analysis of the elemental composition through the cross-section of the as-deposited films helps to illustrate the role of nanoparticles in the film growth.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Thin Solid Films - Volume 517, Issue 6, 30 January 2009, Pages 1880–1886
نویسندگان
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