کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10670149 | 1008853 | 2011 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The influence of Cr and Y on the micro structural evolution of MgâCrâO and MgâYâO thin films
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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 compositional influence of Cr and Y on the microstructure of MgâCrâO, and MgâYâO films synthesized by reactive magnetron sputtering has been investigated by transmission electron microscopy, X-ray diffraction and molecular dynamics simulations. A decrease in crystallinity is observed in these films as the M (Cr or Y) content is increased. It is found that M forms a solid solution with MgO for metal ratios up to ~Â 70% and ~Â 50% for Cr and Y respectively. Above ~Â 70% Cr metal ratio the MgâCrâO films are found to be completely amorphous. The MgâYâO films are composed of Mg(Y)O and Y2O3 nano crystallites, up to ~Â 50% Y metal ratio. Above this ratio, only Y2O3 nano crystallites are found. The preferential <Â 111> MgO grain alignment is strongly affected by the increase in M content. For M metal ratios up to ~Â 50%, there is a selective promotion of the <Â 100> MgO grain alignments and a decline in the <Â 111> grain alignments.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Thin Solid Films - Volume 519, Issue 16, 1 June 2011, Pages 5388-5396
Journal: Thin Solid Films - Volume 519, Issue 16, 1 June 2011, Pages 5388-5396
نویسندگان
N. Jehanathan, V. Georgieva, M. Saraiva, D. Depla, A. Bogaerts, G. Van Tendeloo,