کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5356609 1503611 2015 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Tribological performance of Mg/Al/Ce layered double hydroxides nanoparticles and intercalated products as lubricant additives
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
Tribological performance of Mg/Al/Ce layered double hydroxides nanoparticles and intercalated products as lubricant additives
چکیده انگلیسی
Mg/Al/Ce ternary layered double hydroxides (LDHs) were synthesized via coprecipitation and intercalated by succinic acid and lauric acid through ion exchange method respectively. The LDHs products were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM) and Fourier transform infrared (FT-IR). Tribological properties of LDHs as lubricant additives were evaluated by four-ball friction and air compressor test. The results indicated that Mg/Al/Ce LDHs were prepared successfully with Ce/Al molar ratio of 0.05 and crystallization temperature of 140 °C. The interlayer spacing of LDHs precursor was expanded by succinic acid and lauric acid to 8.838 and 17.519 Å respectively. All the three LDHs products can reduce friction and wear of engine lubricating oil in the tests. LDHs intercalated with lauric acid showed best tribological performance among them which was attributed to sliding each other between laminates, good dispersibility in oil medium and a protective tribofilm formed on the worn surface.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 353, 30 October 2015, Pages 643-650
نویسندگان
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