کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5466348 | 1517988 | 2017 | 43 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Adhesion and tribological properties of gradient designed a-C film on ultrahigh molecular weight polyethylene
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Adhesion and tribological properties of gradient designed a-C film on ultrahigh molecular weight polyethylene Adhesion and tribological properties of gradient designed a-C film on ultrahigh molecular weight polyethylene](/preview/png/5466348.png)
چکیده انگلیسی
Amorphous carbon (a-C) film is deposited with a gradient designed bias voltage on the ultrahigh molecular weight polyethylene (UHMWPE) substrates and Si3N4 balls via a closed field unbalanced magnetron sputtering. The designed bias voltage continuously increases from â 40 V to â 80 V with two different increasing rate. The film with a thickness of approximately 1000 nm is made up of equiaxed grains with size of around 20 nm. Nanoindentation tests show that the hardness of the UHMWPE increases from 44 MPa to 2.16 GPa after deposition of a-C film with gradient designed bias voltage. The wear rate and friction coefficient of the a-C film sliding against a-C films coated on Si3N4 balls is tested in air and Hank's solution by means of a reciprocating tribometer. The a-C film deposited with gradient bias voltage exhibits superior adhesion and tribological performance, compared with those deposited with balanced bias voltage. The a-C film wearing against Si3N4 balls with a-C film coating shows a lower wear rate, compared with a-C films wearing against uncoated balls, decreasing from 1.95 Ã 10â 15 m3 Nâ 1 mâ 1 to 1.23 Ã 10â 15 m3 Nâ 1 mâ 1. There is a further enhancement of the anti-wear performance in Hank's solution.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Thin Solid Films - Volume 624, 28 February 2017, Pages 7-15
Journal: Thin Solid Films - Volume 624, 28 February 2017, Pages 7-15
نویسندگان
Y.J. Xie, W.Q. Bai, L.L. Li, X.L. Wang, G. Jin, J.P. Tu,