کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1661187 1008419 2008 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Microstructure and tribological properties of LaxCeyO1 − x − y composite nanofilms
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
Microstructure and tribological properties of LaxCeyO1 − x − y composite nanofilms
چکیده انگلیسی

A series of LaxCeyO1 − x − y films (x = 0–0.54, y = 0–0.58) with thickness of 35–45 nm was deposited by unbalanced magnetron sputtering. High-resolution transmission electron microscope observation shows that La0.24Ce0.34O0.42 film has polycrystalline structure. La2O3 and CeO2 are formed within the LaxCeyO1 − x − y films confirmed by the X-ray diffraction and X-ray photoelectron microscopy. The friction coefficient and residual compressive stress of five kinds of three-element compound films exhibit symmetric distribution with the relative equilibrium of La and Ce atomic concentration within the films. The critical load of all deposited films is between 28 and 33 mN. The friction coefficient of two kinds of rare earth complex oxide films is in the range of 0.08–0.09, which is lower than that of only one kind of rare earth oxide films, and the friction mechanism is discussed.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Surface and Coatings Technology - Volume 202, Issue 16, 15 May 2008, Pages 3897–3902
نویسندگان
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