کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1492610 | 992394 | 2007 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Viscous flow during sintering of attrition milled nanocrystalline titanium powders
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Viscous flow during sintering of attrition milled nanocrystalline titanium powders Viscous flow during sintering of attrition milled nanocrystalline titanium powders](/preview/png/1492610.png)
چکیده انگلیسی
Nanocrystalline powders are expected to exhibit viscous flow during sintering due to presence of substantial amount of quasi-amorphous layers at the grain boundaries. The present investigation attempts to determine the contribution of viscous flow during sintering of nanocrystalline titanium powders. Model equations originally suggested by Frenkel are applied on the shrinkage data to determine the activation energy for viscous flow, frequency factor and the coefficient of viscosity. Nanocrystalline titanium powders were found to exhibit lower activation energy for viscous flow, higher frequency factor and higher coefficient of viscosity as compared to micron sized titanium powders.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Research Bulletin - Volume 42, Issue 7, 3 July 2007, Pages 1262-1268
Journal: Materials Research Bulletin - Volume 42, Issue 7, 3 July 2007, Pages 1262-1268
نویسندگان
V.V. Dabhade, T.R. Rama Mohan, P. Ramakrishnan,