کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10626417 | 989667 | 2011 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Phase stability and microstructure evolution of yttria-stabilized zirconia during firing in a reducing atmosphere
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The phase transition and microstructure evolution of yttria-stabilized zirconia (YSZ) when firing in a reducing atmosphere are investigated in the present study. As the sintering temperature is lower than 1400 °C, the phase observed for the YSZ specimens is the first tetragonal (t) phase with a grain size of only 0.4 μm in average. When the sintering temperature is increased above 1450 °C, the second tetragonal (tâ²) phase appears together with a rapid grain growth rate. A surface layer with grains larger than 20 μm is observed for the YSZ specimens sintered at 1600 °C. It is found that the addition of metallic nickel particles has little influence on the phase transition of YSZ; however, the growth of tâ²-phase grains is reduced with the addition of Ni particles.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 37, Issue 4, May 2011, Pages 1401-1407
Journal: Ceramics International - Volume 37, Issue 4, May 2011, Pages 1401-1407
نویسندگان
Chang-Ju Ho, Wei-Hsing Tuan,