کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1659611 | 1517687 | 2009 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Influence of liquid nitrogen quenching on the evolution of metastable phases during plasma spraying of (ZrO2-5Â wt.% Y2O3)-20Â wt.% Al2O3 coatings
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The preparation of nanostructured (ZrO2-5 wt.% Y2O3)-20 wt.% Al2O3 coatings by atmospheric plasma spraying of commercially available micron-scale powders is reported. Materials were prepared by means of a standard spraying technique and by using an improved technique that allows for the quenching of the material using liquid nitrogen-cooled substrates. Quenching leads to the controlled formation of metastable phases. The influence of liquid nitrogen cooling on the formation of the metastable phases was studied by X-ray diffraction under a grazing incidence angle of 1°. A significant increase in the amount of the metastable zirconia phase and a more homogeneous composition along the thickness were found compared to the regularly sprayed coatings. All materials were subjected to a thermal treatment for 1 h at 1400 °C to study the evolution of stable phases.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Surface and Coatings Technology - Volume 204, Issues 1â2, 25 September 2009, Pages 149-156
Journal: Surface and Coatings Technology - Volume 204, Issues 1â2, 25 September 2009, Pages 149-156
نویسندگان
J. Suffner, H. Hahn, S. Dosta, I.G. Cano, J.M. Guilemany,