کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5468404 | 1518935 | 2017 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of strengthening phase on material transfer behavior of Ag-based contact materials under different voltages
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سطوح، پوششها و فیلمها
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Effect of strengthening phase on material transfer behavior of Ag-based contact materials under different voltages Effect of strengthening phase on material transfer behavior of Ag-based contact materials under different voltages](/preview/png/5468404.png)
چکیده انگلیسی
To clarify the correlation of strengthening phase and particle sizes with the material transfer behavior for Ag-based contact materials, the Ag-4wt%TiB2 and Ag-4wt%SnO2 contact materials reinforced with different TiB2 and SnO2 particles were prepared, and the electrical contact tests were up to 5000 operations at different voltages. The surface morphologies of arc-eroded specimens were characterized by scanning electron microscope, the mass changes before and after electrical contact test were determined, and the material transfer behavior of Ag-4wt%TiB2 and Ag-4wt%SnO2 contact materials at different voltages were discussed as well. The results indicate that the voltage has a significant effect on make arc and break arc, which leads to the change of the material transfer mode. Furthermore, the strengthening phase remarkably influence the electrical performances of Ag-based contact materials. The Ag-4wt%TiB2 contact material presents higher make-arc-energy and lower break-arc-energy than the Ag-4wt%SnO2 contact material. The fine strengthening particles are beneficial for the decrease of arc energy. Subsequently, the Ag-based contact material prepared with fine strengthening particles has less material transfer and mass loss.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Vacuum - Volume 135, January 2017, Pages 55-65
Journal: Vacuum - Volume 135, January 2017, Pages 55-65
نویسندگان
Hangyu Li, Xianhui Wang, Yanfeng Liu, Xiuhua Guo,