کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1604298 | 1516012 | 2008 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Preparation of ultra-fine TiC0.7N0.3-based cermet
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Preparation of ultra-fine TiC0.7N0.3-based cermet Preparation of ultra-fine TiC0.7N0.3-based cermet](/preview/png/1604298.png)
چکیده انگلیسی
Since ultra-fine Ti(C, N) has large surface and high activity, preparation of high performance cermets using ultra-fine Ti(C, N) powders is very difficult at the present. In the paper, deoxidation process of ultra-fine TiC0.7N0.3 powder is carried out firstly, and the oxygen content of ultra-fine TiC0.7N0.3 powder can be decreased from more than 1 wt% to 0.06 wt%; milling technology of ultra-fine TiC0.7N0.3-based cermet is studied in the paper, the results show that the optimum milling time is 45 h and the ball to powder weight ratio is 15:1, and the dispersant helps to achieve a homogeneous distribution of the ultra-fine powder; during vacuum sintering of ultra-fine cermet, pores tend to form, hence NT6B shows relatively lower properties than NT6A. After HIP process (1350 °C, 90 min, 70 MPa), the porosity can be largely decreased. The prepared ultra-fine cermet has typical core-rim microstructure, finer grain size and enhanced properties.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Refractory Metals and Hard Materials - Volume 26, Issue 3, May 2008, Pages 212-219
Journal: International Journal of Refractory Metals and Hard Materials - Volume 26, Issue 3, May 2008, Pages 212-219
نویسندگان
Ji Xiong, Zhixing Guo, Mei Yang, Baoluo Shen,