کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10626503 | 989686 | 2005 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Preparation and sintering of Ni-coated Si3N4 composite powders
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Preparation and sintering of Ni-coated Si3N4 composite powders Preparation and sintering of Ni-coated Si3N4 composite powders](/preview/png/10626503.png)
چکیده انگلیسی
Ni-coated Si3N4 composite powders were prepared successfully via electroless plating by using sodium hypophosphate (NaH2PO2) as reducing agent. The Ni coating layers contained 12 wt.% phosphor and were dominantly amorphous with a thickness of 20-60 nm. The sintering properties of Ni-Si3N4 composite were improved by adding Mo2C into Si3N4 powders, in which Mo2C formed liquid to improve the α-β transformation of Si3N4, and Mo2C converted into MoSi2 after sintering. The composite powders were densified by hot-pressing at 1600 °C. The final crystal phases of the sintered samples were Si3N4, Ni and MoSi2.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 31, Issue 6, 2005, Pages 811-815
Journal: Ceramics International - Volume 31, Issue 6, 2005, Pages 811-815
نویسندگان
He Wanbao, Zhang Baolin, Zhuang Hanrui, Li Wenlan,