کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
701531 891008 2006 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Carbon atom exchange between the diamond surface and lubricant during polishing
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی برق و الکترونیک
پیش نمایش صفحه اول مقاله
Carbon atom exchange between the diamond surface and lubricant during polishing
چکیده انگلیسی

Diamond surfaces prepared in the usual way, by polishing with diamond grit mixed with olive oil, are known to be atomically bulk-like (unreconstructed), although the polishing mechanism is still debated. Broken bonds at the surface are normally saturated by hydrogen atoms or H-containing groups. The hydrogen is usually assumed to be donated by the oil, but the latter's molecules include double bonds, i.e. are unsaturated with respect to hydrogen. Using carbon-13 labelled oil and nuclear resonance profiling, we find evidence that the oil molecules and the surface achieve mutual saturation by bonding to one another. As such, the outermost carbon atoms of a polished diamond surface thus come from the oil, and not from the diamond. Some implications are discussed.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Diamond and Related Materials - Volume 15, Issue 1, January 2006, Pages 160–163
نویسندگان
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