کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1635348 | 1007022 | 2006 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Sintering of WC-Co powder with nanocrystalline WC by spark plasma sintering
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
A 92WC-8Co powder mixture with 33 nm WC grains was prepared by strengthening ball milling and was then sintered by spark plasma sintering (SPS) at 1000-1200°C for 5-18 min under 10-25 kN, respectively. Movement of the position of low punch shown shrinkage of the sintered body began above 800°C. The shrinkage slowly rose as the temperature rose from 800 to 1000°C and then quickly rose at above 1000°C and then gradually rose at above 1150°C. The densities of the samples increased with an increase in sintering temperature, rapidly below 1100°C, and then gradually above 1100°C. WC grains grow gradually with increasing sintering temperature. The powder was sintered to near full density at 1100°C for 5 min under 10 kN. The best result of the sample with 275 run WC grains and no pores was obtained at 1150°C under 10 kN for 5 min. The research found the graphite die had a function of carburization, which could compensate the sintered body for the lack of carbon, and had the normal microstructure.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Rare Metals - Volume 25, Issue 3, June 2006, Pages 246-252
Journal: Rare Metals - Volume 25, Issue 3, June 2006, Pages 246-252
نویسندگان
WANG Xingqing, XIE Yingfang, GUO Hailiang, O. Van der Biest, J. Vleugels,