کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9802933 | 1516026 | 2005 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Compressive creep behavior of hot-pressed Si3N4 ceramics using alumina and a rare earth solid solution as additives
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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: Compressive creep behavior of hot-pressed Si3N4 ceramics using alumina and a rare earth solid solution as additives Compressive creep behavior of hot-pressed Si3N4 ceramics using alumina and a rare earth solid solution as additives](/preview/png/9802933.png)
چکیده انگلیسی
The compressive creep behavior of the materials depends on the composition and amount of the intergranular phase. While higher amounts of additives resulted in higher creep rates, εË, and higher stress exponents, the activation energy Qss, has been inferior for samples with lower additive contents, n. This observation is attributed to the higher SiO2 content due to the higher amount of Si3N4 in the starting powders, resulting in liquid phase formation at lower temperatures. Grain sliding has been identified to be the predominant mechanism responsible for creep deformation of these ceramics.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Refractory Metals and Hard Materials - Volume 23, Issue 3, May 2005, Pages 183-192
Journal: International Journal of Refractory Metals and Hard Materials - Volume 23, Issue 3, May 2005, Pages 183-192
نویسندگان
C. Santos, K. Strecker, M.J.R. Barboza, F. Piorino Neto, O.M.M. Silva, C.R.M. Silva,