کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10625796 | 989634 | 2014 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Influence of carbon on phase stability of tetragonal ZrO2
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Influence of carbon on phase stability of tetragonal ZrO2 Influence of carbon on phase stability of tetragonal ZrO2](/preview/png/10625796.png)
چکیده انگلیسی
In the present work, nanocrystallite ZrO2 was synthesized by calcining zirconium (IV) acetylacetonate. X-ray diffraction results show the existence of tetragonal phase even when the nanocrystallite size reached ~47Â nm. The presence of amorphous carbon was identified by Raman analysis while the Zr-C bonding was confirmed by X-ray photoelectron spectroscopy analysis. Transmission electron microscopy showed no hard-agglomeration in the samples treated at high temperatures. These results indicated that carbon has influence on the phase stability of t-ZrO2 in two aspects: the amorphous carbon creates a reducing atmosphere, meanwhile carbon atoms bonded with zirconium atoms act as a stabilizer.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 40, Issue 4, May 2014, Pages 5645-5651
Journal: Ceramics International - Volume 40, Issue 4, May 2014, Pages 5645-5651
نویسندگان
Huimin Xiang, Xinpo Lu, Jingjing Li, Jixin Chen, Yanchun Zhou,