کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1475127 991109 2014 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Mechanical metallization of alumina substrate through shot impact treatment
ترجمه فارسی عنوان
فلزی سازی مکانیکی آلومینا از طریق درمان ضربه
کلمات کلیدی
بستر آلومینا، فیلم فلزی نانوساختار، ضربه شات، ارتعاشات التراسونیک، خصوصیات فیلم
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
چکیده انگلیسی

The present study examines the potentialities of a novel surface treatment process for the metallization of ceramics. The process combines the principles of ball milling and shot peening using the energy of ultrasonic vibrations. Experiments were performed by using alumina and powdered nickel as a ceramic substrate and metallizing agent, respectively. The main emphasis was placed on characterizing the deposited films and elucidating their formation mechanisms. The results showed that 3-min impact treatment at ambient temperature and pressure leads to the formation of 2–4 μm thin, dense, and highly adherent films of nanostructured Ni on the surface of alumina substrate. SEM and TEM observations revealed a very tight contact between the deposited films and substrate suggesting the shot-impact induced plastic flow in the Ni film. It is assumed that the van der Waals interaction is the main origin of the high adhesion strength observed.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the European Ceramic Society - Volume 34, Issue 2, February 2014, Pages 391–399
نویسندگان
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